16th Paris Cosmology Colloquium “The New Standard Model of the Universe: Lambda Warm Dark Matter. Theory and Observations”

Ecole Internationale d’Astrophysique Daniel Chalonge

Chalonge School 16th Paris Cosmology Colloquium 2012 “The New Standard Model of the Universe: Lambda Warm Dark Matter. Theory and Observations”

1. SUMMARY
Recently, Warm (keV scale) Dark Matter emerged impressively over CDM (Cold Dark Matter) as the leading Dark Matter candidate. Astronomical evidence that Cold Dark Matter (LambdaCDM) and its proposed tailored cures do not work at small scales is staggering. LambdaWDM solves naturally the problems of LambdaCDM and agrees remarkably well with the observations at small as well as large and cosmological scales. LambdaWDM numerical simulations naturally agree with observations at all scales, in contrast to LambdaCDM simulations which only agree at large scales. In the context of this new Dark Matter situation, which implies novelties in the astrophysical, cosmological and keV particle physics context, this 16th Paris Colloquium 2012 is devoted to the LambdaWDM Standard Model of the Universe. In summary, the aim of the meeting is to put together real data: cosmological, astrophysical, particle, nuclear physics data, and hard theory predictive approach connected to them in the framework of the Lambda WDM Standard Model of the Universe.

2. THIS COLLOQUIUM
This Colloquium is within the astrofundamental physics spirit of the Chalonge School, focalised on recent observational and theoretical progress in the CMB, dark matter, dark energy, structure formation, and the theory of the early universe inflation with predictive power in the context of the LambdaWDM Standard Model of the Universe. The Colloquium addresses as well the theory and experimental search for the WDM particle physics candidates (keV sterile neutrinos). Astrophysical constraints including Lyman alpha bounds put the sterile neutrino mass m in the range 1< m < 13 keV. WDM predictions for EUCLID and PLANCK start to to be available. MARE and an adapted KATRIN experiment could detect a keV sterile neutrino. It will be a fantastic discovery to detect dark matter in a beta decay. A formidable WDM work to perform is ahead of us.

3. TOPICS
Observational and theoretical progress on the nature of dark matter: keV scale warm dark matter. Cored density profiles in agreement with observations. Large and small scale structure formation in agreement with observations at large scales and small (galactic) scales. Warm (keV scale) dark matter from theory and observations. Warm (keV scale) dark matter N-body simulations in agreement with observations. Neutrinos in astrophysics and cosmology. The new serious dark matter candidate: Sterile neutrinos at the keV scale.Neutrinos mass bounds from cosmological data and from high precision beta decay experiments. Dark energy: cosmological constant: the quantum energy of the cosmological vacuum. The analysis of the CMB+LSS+SN data with the effective (Ginsburg-Landau) effective theory of inflation: New Inflation (double well inflaton potential) strongly favored by the CMB + LSS + SN data. The presence of the lower bound for the primordial gravitons (non vanishing tensor to scalar ratio r) with the present CMB+LSS+SN data. CMB news and polarization. Forecasts and Planck results, and Other Topics.

FORMAT and EXHIBITION
Sessions last for three days in the beautiful Parisian campus of Observatoire de Paris (built on orders from Colbert and to plans by Claude Perrault from 1667 to 1672). All sessions take place at the Salle Cassini (Cassini Hall) in the historic Perrault building (“Bâtiment Perrault”) of Observatoire de Paris HQ, just upstairs “Salle du Conseil” (Council Room). All Coffee-Tea breaks take place at the “Salle du Conseil” under the portraits of Laplace, Le Verrier, Lalande, Arago, Delambre and Louis XIV. The Registration desk and the Secretariat of the Colloquium take place at the “Grande Galerie” (Great Gallery) just aside facing Salle du Conseil

An exhibition at the “Grand Galerie” (Great Gallery) and “Salle Cassini” (Cassini Hall) will retrace the 21 years of activity of the Chalonge School and “the Golden Days” in “Astrofundamental Physics”: The Construction of the Standard Model Of the Universe. The World High Altitude Observatories Network: World Cultural and Scientific Heritage. All Lectures are followed by a discussion. All participants are invited to take part in the discussions. The Meeting is open to all scientists interested in the subject.

Information about this Colloquium, participation information and background information are displayed at the Chalonge School web site: http://www.chalonge.obspm.fr/colloque2012.html

Information on the previous Paris Cosmology Colloquia and of the school events (lecturers, lists of participants, lecture pdf files and photos during the Colloquia) are available at http://www.chalonge.obspm.fr

Early registration is strongly encouraged.

With compliments and kind regards,

Chalonge.Ecole[AT]obspm.fr
http://chalonge.obspm.fr

Chalonge School Meudon Workshop 2012 “Warm Dark Matter Galaxy Formation in Agreement with Observations”

Ecole Internationale d’Astrophysique Daniel Chalonge

1. Summary: A Turning Point operated recently in the Dark Matter research: Warm Dark Matter (WDM) emerged impressively over Cold Dark Matter (CDM) as the leading Dark Matter candidate. WDM solves naturally the problems of CDM and agrees with the observations at small as well as large and cosmological scales. This workshop addresses WDM putting together astrophysical, cosmological and particle WDM, astronominal observations, theory and WDM numerical simulations which naturally reproduce the observations at all the scales. The Workshop addresses as well the experimental search for the WDM particle candidates (keV sterile neutrinos).

2. The New Dark Matter Situation Today: Warm Dark Matter (WDM) research is progressing fast, the subject is new and WDM essentially works, naturally reproducing the astronomical observations over all scales: small (galactic) and large (cosmological) scales (LambdaWDM). Astronomical evidence that Cold Dark Matter (LambdaCDM) and its proposed tailored cures do not work at small scales is staggering. Astrophysical constraints including Lyman alpha bounds put the sterile neutrino mass m in the range 1< m <13 keV. WDM predictions for EUCLID and PLANCK start to to be available. MARE and an adapted KATRIN experiment could detect a keV sterile neutrino. It will be a fantastic discovery to detect dark matter in a beta decay. A formidable WDM work to perform is ahead of us.

3. History, Context and the CDM crisis (abridged): This Workshop is the third of a new Chalonge series in Meudon dedicated to Dark Matter. The first Workshop of this series (June 2010) allowed to identify and understand the issues of the serious problems faced by Cold Dark Matter (CDM) to reproduce the galactic (and even cluster of galaxies) observations. The 2010 and 2011 Workshops served as well to verify and better understand the confusion in the CDM research, namely the increasing number of cyclic arguments, and ad-hoc mechanisms introduced in the CDM simulations over most of twenty years, in trying to deal with the CDM small scale crisis: Cusped profiles and overabundance of substructures are predicted by CDM. Too many satellites are predicted by CDM simulations while cored profiles and no such overabundant substructures are seen by astronomical observations. Read more on the www of this Workshop.

4. The Workshop addresses the last progresses made in Warm Dark Matter and the Universal and Non Universal properties of Galaxies. In the tradition of the Chalonge School, an effort of clarification and synthesis will be made by combining in a conceptual framework, theory, analytical, observational and numerical simulation results that reproduce observations.

The subject will be approached in a threefold way:
(I) Conceptual context and keV WDM particle candidates, sterle neutrinos
(II) Astronomical observations linked to the galaxy structural properties, surveys, clusters and to structure formation at different (large and small (galactic) scales).
(III) WDM Numerical simulations which reproduce observations at large and small (galactic) scales.

TOPICS:
Recent progress in solving the Boltzmann-Vlasov equation to obtain the observed properties of galaxies (and clusters of galaxies). N-body numerical simulations with Warm Dark Matter. The surface density. The phase-space density. Particle model independent analysis of astrophysical dark matter. The impact of the mass of the dark matter particle on the small scale structure formation. The radial profiles and the Dark Matter distribution. Cored DM observed profiles. The keV scale Dark Matter (Warm Dark Matter): Observational and theoretical progresses. Large and small scale structure formation in agreement with observations at large and small (galactic) scales. The new serious dark matter candidate: Sterile neutrinos at the keV scale.

Sessions last for three full days in the beautiful green Meudon campus of Observatoire de Paris, where CIAS "Centre International d´Ateliers Scientifiques" is located. All sessions take place in the historic Château building, (built in 1706 by great architect Jules-Hardouin Mansart in orders by King Louis XIV for his son the Grand Dauphin).

The Meeting is open to all scientists interested in the subject. The format of the Meeting is intended to allow easy and fruitful mutual contact and communication.

Informations about the Workshop, participation information and background information are displayed at http://www.chalonge.obspm.fr/Cias_Meudon2012.html

Early Registration is strongly encouraged.

With compliments and kind regards,
Chalonge.Ecole[AT]obspm.fr
http://chalonge.obspm.fr/

Highlights and Conclusions of the Workshop “Warm Dark Matter in Galaxies: Theoretical and Observational Progresses”

Ecole Internationale d’Astrophysique Daniel Chalonge

“Warm Dark Matter in Galaxies: Theoretical and Observational Progresses”,
Meudon Castle/CIAS of Observatoire de Paris, Meudon, France, 8, 9 and 10 JUNE 2011

HIGHLIGHTS AND CONCLUSIONS OF THE WORKSHOP

We are pleased to inform you that the Highlights and Conclusions of the Chalonge Meudon Workshop 2011 on Warm Dark Matter in the Galaxies (48 pages, 24 figures including photos of the workshop) are available on the web site of this Workshop

http://www.chalonge.obspm.fr/Cias_Meudon2011.html

ABSTRACT (Abridged):

Warm Dark Matter (WDM) research is progressing fast, the subject is new and WDM essentially works, naturally reproducing the astronomical observations over all scales: small (galactic) and large (cosmological) scales (LambdaWDM). Evidence that Cold Dark Matter (LambdaCDM) and its proposed tailored cures do not work at small scales is staggering.

Fedor Bezrukov, Pier-Stefano Corasaniti, Hector J. de Vega, Stefano Ettori, Frederic Hessmann, Ayuki Kamada, Marco Lombardi, Alexander Merle, Christian Moni Bidin, Angelo Nucciotti on behalf of the MARE collaboration, Sinziana Paduroiu, Henri Plana, Norma Sanchez, Patrick Valageas, Shun Zhou present here their highlights of the Workshop. LambdaWDM simulations with keV particles remarkably reproduce the observations, small and large structures and velocity functions. Cored DM halos and WDM are clearly determined from theory and astronomical observations, they naturally produce the observed structures at all scales. keV sterile neutrinos are the leading candidates, they naturally appear extensions of the standard model of particle physics. Astrophysical constraints including Lyman alpha bounds put its mass in the range 1< m <13 keV. Predictions for EUCLID and PLANCK have been presented. MARE and an adapted KATRIN experiment could detect a keV sterile neutrino. It will be a fantastic discovery to detect dark matter in a beta decay. A formidable WDM work to perform is ahead of us, these highlights point out some relevant research directions to put the effort. Photos of the Workshop are included.

We thank all again, both lecturers and participants, for having contributed so much to this Workshop and look forward to seeing you again in a next Meeting of this series.

With Compliments and kind regards

Norma G Sanchez,
Hector J de Vega
http://chalonge.obspm.fr

Daniel Chalonge Medal 2011 awarded to John Mather

Ecole Internationale d’Astrophysique Daniel Chalonge

The International Astrophysics School Daniel Chalonge has awarded the Daniel Chalonge Medal 2011 to Dr. John C. Mather, Nobel Laureate 2006 for the outstanding results of the COBE satellite, and present Senior Project Scientist for the James Webb Space Telescope, Dr. John C. Mather is a Senior Astrophysicist in the Observational Cosmology Laboratory at the NASA Goddard Space Flight Center (College Park, Maryland, USA).

The medal was awarded to John Mather for his huge contribution to modern cosmology, in particular for his outstanding effort in promoting and leading key missions for the study of the Universe, as the COBE satellite and now the JWST, deeply discussed in the frame of the Chalonge School and the training and formation of young physicists and astrophysicists. He also contributed to ground observation programs leading advisory and working groups for the National Academy of Sciences, NASA, and the NSF (for the ALMA, the Atacama Large Millimeter Array, and for the CARA, the Center for Astrophysical Research in the Antarctic). As Senior Project Scientist for the JWST, John Mather successfully leads the science team, and represents the scientific interests within the project management.

The medal was presented to John Mather on 22th July 2011 during the Open Session of the 15th Paris Cosmology Colloquium 2011 at the Observatoire de Paris HQ (historic Perrault building) in the Cassini Hall, on the meridian of Paris, which was attended by about hundred participants from the world over, among them three laureate of the Chalonge Medal: George Smoot, Nobel laureate of physics, Anthony Lasenby and Peter Biermann. John Mather brilliantly presented the JWST Program, the large infrared-optimized space telescope planned to operate from 2018 as the best successor for the Hubble and Spitzer Space Telescopes. The Chalonge Medal represents too a warm acknowledgement and support to Dr. John Mather’s present and future activities in the JWST.

The Chalonge Medal, coined exclusively for the Chalonge School by the prestigious Hotel de la Monnaie de Paris (the French Mint), is a surprise award and only eight Chalonge medals have been awarded in the 20 year school history.

The list of the awarded Chalonge Medals is the following:

1991: Subramanyan Chandrasekhar, Nobel prize of physics
1992: Bruno Pontecorvo
2006: George Smoot, Nobel prize of physics
2007: Carlos Frenk
2008: Anthony Lasenby
2008: Bernard Sadoulet
2009: Peter Biermann
2011: John Mather

Science with great intellectual endeavour and a human face. True and healthy science. Outstanding gentleperson scientists. Scientists recipients of the Daniel Chalonge Medal are Ambassadors of the School.

See the announcement, full history, photo gallery and links at: http://chalonge.obspm.fr

Click on “The Daniel Chalonge Medal 2011”: http://chalonge.obspm.fr/Medal_Chalonge2011.pdf

and Archives Daniel Chalonge: http://chalonge.obspm.fr/Archives_Daniel_Chalonge.html

One of the aims of the Chalonge School is to bring the attention to new programs which will produce a clearer and deeper understanding of the Universe with both innovative experiments and theory. During the 15th Paris Cosmology Colloquium 2011, the  Chalonge School has made the following statement in support to the James Webb Space Telescope:

“The Ecole Internationale Daniel Chalonge considers that  JWST is an exceptional opportunity for the future of astrophysics and astronomy worldwide. The Ecole Internationale Daniel Chalonge recognizes the outstanding scientific value  of the JWST project, its potentiality and worldwide  impact and strongly supports its development and successful completion.”

Norma G. Sanchez (1), Héctor J. de Vega (2), Maria Cristina Falvella (3), Alba Zanini (4)
(1) Director of the International Daniel Chalonge School,  CNRS, Observatoire de Paris, France. (2) CNRS, University Pierre & Marie Curie, Paris, France. (3) Italian Space Agency HQ, Rome, Italy. (4) Istituto Nazionale di Fisica Nucleare (INFN), Turin, Italy

With compliments and kind regards,

Norma G. Sanchez, Hector J. de Vega
Ecole Chalonge <chalonge.ecole[AT]obspm.fr>
http://chalonge.obspm.fr

Presentations of the 15th Paris Cosmology Colloquium 2011

Ecole Internationale d’Astrophysique Daniel Chalonge

The 15th Paris Cosmology Colloquium 2011`From Cold Dark Matter to Warm Dark Matter in the Standard Model of the Universe: Theory and Observations’. 20 Years of Activity.
20, 21 and 22 JULY 2011 Paris Observatory (HQ), historic Perrault building, Paris, France

We are pleased to inform you that the presentations by the lecturers during the 15th Paris Cosmology Colloquium 2011 are available on line (in pdf format) in “Programme and Lecturers .pdf ” in the www site of this Colloquium

http://www.chalonge.obspm.fr/colloque2011.html
http://www.chalonge.obspm.fr/Programme_Paris2011.html

Contents:

– The Standard Model of the Universe: CMB present status. PIXIE CMB project
– Inflation Effective theory, predictions and observations, Planck results, Atacama Cosmology Telescope.
– Last results from Herschel: interstellar medium Initial Mass Function, structures and filaments, Herschel-SPIRES cosmology
– Large scale flows. Astrophysical black holes, Re-ionization
– Observations of Dark matter on small astrophysical scales, cored density profiles and small baryon feedback
– Warm Dark Matter (WDM): Cosmological, astrophysical, numerical and keV particle WDM candidates, sterile neutrinos: theory and observations, neutrino masses and mixing, Neutrinoless Beta decay. Mare and Katrin experiments.
– Astrophysical origin of the positron excess in cosmic rays. Helioseismology and Dark Matter

Open Special Session:

– The Ultra Fast Flash Observatory UFFO
– The James Webb Space Telescope JWST

The photographs of the Colloquium capturing moments of the stimulating and outstanding atmosphere created by all lecturers and participants during the Colloquium and Open Session will be posted soon in this www site.

Norma G Sanchez, Hector J de Vega
http://chalonge.obspm.fr

Presentations of Meudon Workshop “Warm Dark Matter in the Galaxies” 2011

Ecole Internationale d’Astrophysique Daniel Chalonge

Meudon Workshop 2011 “Warm Dark Matter in the Galaxies: Theoretical and Observational Progresses”, 8-10 June 2011

We are pleased to inform you that the presentations by the lecturers during the Chalonge Meudon Warm Dark Matter Workshop 2011 are available online (in pdf format) on the web site of this workshop:

http://www.chalonge.obspm.fr/Cias_Meudon2011.html
http://www.chalonge.obspm.fr/Programme_CIAS2011.html

Contents: Astrophysical, cosmological and particle WDM, Lambda WDM, Theory, Observations, Numerical simulations, Particle WDM, sterile neutrinos, sterile neutrino experiments. The photographs of the Workshop capturing moments of the stimulating and outstanding atmosphere created by all lecturers and participants during the Workshop will be posted soon.

We thank all again, both lecturers and participants, for having contributed so much to this Workshop and we look forward to seeing you again in the next Warm Dark Matter Meeting 2012 of this series.

With compliments and kind regards

Norma G Sanchez, Hector J. de Vega
http://chalonge.obspm.fr

The Chalonge School 15th Paris Cosmology Colloquium 2011

Ecole Internationale Daniel Chalonge

The Chalonge School 15th Paris Cosmology Colloquium 2011 ” From Cold Dark Matter to Warm Dark Matter in the Standard Model of the Universe: Theory and Observations “

The International School Daniel Chalonge: 20 Years of Activity

The Conference is within the astrofundamental physics spirit of the Chalonge School, focalized on recent observational and theoretical progress on the CMB, dark matter, dark energy, dark ages, and the theory of the early universe with predictive power in the context of the Standard Model of the Universe.

Recently, LambdaWDM (Warm Dark Matter) emerged impressively over LambdaCDM (Cold Dark Matter) whose small -galactic- scale (and even larger scale) problems are ever-increasing. LambdaWDM solves naturally the problems of LambdaCDM and agree with the observations at small as well as large and cosmological scales.

In summary, the aim of the meeting is to put together the recent cosmological and astrophysical data and hard theory predictive approach connected to them in the framework of the Standard Model of the Universe.

TOPICS:

Observational and theoretical progress on the nature of dark matter: keV scale dark matter particles.
Dark energy: cosmological constant: the quantum energy of the cosmological vacuum.
Large and small scale structure formation in agreement with observations at large scales and small (galactic) scales.
The ever increasing problems of LambdaCDM.
The emergence of Warm (keV scale) Dark Matter from theory and observations.
The analysis of the CMB+LSS+SN data with the effective (Ginsburg-Landau) effective theory of inflation: New Inflation (double well inflaton potential) strongly favored by the CMB + LSS + SN data: The presence of the lower bound for the primordial gravitons (non vanishing tensor to scalar ratio r) with the present CMB + LSS + SN data. CMB polarization and forecasts for Planck.
Neutrinos in cosmology.
The new serious dark matter candidate: Sterile neutrinos at the keV scale.

All Lectures are followed by a discussion. All participants are invited to take part in the discussions.

The Meeting is open to all scientists interested in the subject but Registration is mandatory.

The format of the Meeting is intended to allow easy and fruitful mutual contact and communication.

Sessions last for three full days in the beautiful parisian campus of Observatoire de Paris (built on orders from Colbert and to plans by Claude Perrault from 1667 to 1672). All sessions take place at the Salle Cassini (Cassini Hall) in the historic Perrault building (“Bâtiment Perrault”) of Observatoire de Paris HQ. All Coffee-Tea breaks take place at the “Salle du Conseil” under the portraits of Laplace, Le Verrier, Lalande, Arago, Delambre and Louis XIV. The Registration desk and the Secretariat of the Colloquium take place at the “Grande Galerie” (Great Gallery) just aside facing Salle du Conseil

EXHIBITION:

An exhibition at the “Grand Galerie” (Great Gallery) and “Salle Cassini” (Cassini Hall) will retrace the 20 years of activity of the Chalonge School and “The Golden Days” in “Astrofundamental Physics”: The Construction of the Standard Model Of the Universe, as well as the Exhibition “The World High Altitude Observatories Network: World Cultural and Scientific Heritage”.

The books and proceedings of the School since its creation, as well as historic Daniel Chalonge material, Prizes and Chalonge instruments will be on exhibition at the Great Gallery.

Informations about this Colloquium, participation information and background information are displayed at the Chalonge School web site:

http://www.chalonge.obspm.fr/colloque2011.html

Informations on the previous Paris Cosmology Colloquia and of the school events are available at http://chalonge.obspm.fr (lecturers, lists of participants, lecture pdf files and photos during the Colloquia).

Early Registration is strongly encouraged

With compliments and kind regards,

Chalonge.Ecole[AT]obspm.fr
http://chalonge.obspm.fr

Chalonge School CIAS Workshop 2011 “Warm Dark Matter in Galaxies: Theoretical and Observational Progresses”

Ecole Internationale Daniel Chalonge

A Turning Point in the Research of Dark Matter: Warm Dark Matter. Theory and Observations

Recently, LambdaWDM (Warm Dark Matter) emerged impressively over LambdaCDM (Cold Dark Matter) whose small galactic- scale (and even larger scale) problems are ever-increasing. LambdaWDM solves naturally the problems of LambdaCDM and agrees with the observations at small as well as large and cosmological scales. The Workshop addresses the last progresses made in Warm Dark Matter and the Universal and Non Universal properties of Galaxies. In the tradition of the Chalonge School, an effort of clarification and synthesis will be made by combining in a conceptual framework, theory, analytical, observational and numerical simulation results that reproduce observations.The subject will be approached in a threefold way: (I) Conceptual context. (II) Astronomical observations linked to the galaxy structural properties and to structure formation at different (large and small (galactic) scales). (III) Numerical simulations which reproduce observations at large and small (galactic) scales.

TOPICS:
Recent progress in solving the Boltzmann-Vlasov equation to obtain the observed properties of galaxies (and clusters of galaxies). N-body numerical simulations with Warm Dark Matter.The surface density . The phase-space density. Particle model independent analysis of astrophysical dark matter. The impact of the mass of the dark matter particle on the small scale structure formation. The radial profiles and the Dark Matter distribution. Cores versus Cusps. The ever increasing problems of LambdaCDM. The keV scale Dark Matter (Warm Dark Matter): Observational and theoretical progresses. Large and small scale structure formation in agreement with observations at large and small (galactic) scales. The new serious dark matter candidate: Sterile neutrinos at the keV scale.

Sessions last for three full days in the beautiful Meudon campus of Observatoire de Paris, where CIAS “Centre International d´Ateliers Scientifiques” is located. All sessions take place in the historic Château building, (built in 1706 by great architect Jules-Hardouin Mansart in orders by King Louis XIV for his son the Grand Dauphin). The Meeting is open to all scientists interested in the subject. The format of the Meeting is intended to allow easy and fruitful mutual contact and communication. Informations about the Workshop, participation information and background information are displayed at the http://www.chalonge.obspm.fr/Cias_Meudon2011.html

Early Registration is strongly encouraged

With compliments and kind regards,

Chalonge.Ecole[at]obspm.fr http://chalonge.obspm.fr/

Highlights and Conclusions of the 14th Paris Cosmology Colloquium Chalonge 2010

Ecole Internationale d’Astrophysique Daniel Chalonge

The 14th Paris Cosmology Colloquium Chalonge 2010
“The Standard Model of the Universe: Theory and Observations”

Greetings from Paris. We are pleased to inform you that the Highlights and Conclusions of the Chalonge 14th Paris Cosmology Colloquium 2010 (54 pages, 19 figures) have appeared as http://arxiv.org/abs/1009.3494 and are also available (.ps printing format) on the web site of the Colloquium:

http://www.chalonge.obspm.fr/colloque2010.html

———————————————————————–

Abstract (Abridged)

The Chalonge 14th Paris Cosmology Colloquium was held on 22-24 July 2010 in Paris Observatory on the Standard Model of the Universe: News from WMAP7, BICEP, QUAD, SPT, AMI, ACT, Planck, QUIJOTE and Herschel; dark matter (DM) searches and galactic observations; related theory and simulations; aiming synthesis, progress and clarification. P. Biermann, D. Boyanovsky, A. Cooray, C. Destri, H. de Vega, G. Gilmore, S. Gottlober, E. Komatsu, S. McGaugh, A. Lasenby, R. Rebolo, P. Salucci, N. Sanchez and A. Tikhonov present here their highlights of the Colloquium. Inflection points emerged: LambdaWDM (Warm DM) emerges impressively over LambdaCDM whose galactic scale problems are ever-increasing.

Summary and conclusions by H. J. de Vega, M. C. Falvella and N. G. Sanchez stress among other points: (i) Primordial CMB  gaussianity is confirmed. Inflation effective theory predicts a tensor to scalar ratio 0.05-0.04 at reach/border line of next CMB observations, early fast-roll inflation provides lowest multipoles depression. SZ amplitudes are smaller than expected: CMB and X-ray data agree but intracluster models need revision and relaxed/non-relaxed clusters distinction. (ii) cosmic ray positron excess is explained naturally by astrophysical processes, annihilating/decaying dark matter needs growing tailoring. (iii) Cored (non cusped) DM halos and warm (keV scale mass) DM are increasingly favored from theory and observations, naturally producing observed small scale structures, wimps turn strongly disfavoured. LambdaWDM 1 keV simulations well reproduce observations. Evidence that LambdaCDM does not work at small scales is staggering. P Biermann presents his live minutes of the Colloquium and concludes that a keV sterile neutrino is the most interesting DM candidate.

Photos of the Colloquium are included.

———————————————————————–

We thank all again, both lecturers and participants, for having contributed so much to this Colloquium and look forward to seeing you again in a next Meeting of this series.

With Compliments and kind regards

Norma G Sanchez,  Hector J de Vega

http://chalonge.obspm.fr

Highlights and Conclusions of the Chalonge CIAS Meudon Workshop Dark Matter in the Universe 2010

Ecole Internationale d’Astrophysique Daniel Chalonge

Workshop CIAS Meudon 2010 “Dark Matter in the Universe and Universal Properties of Galaxies: Theory and Observation”

HIGHLIGHTS AND CONCLUSIONS OF THE WORKSHOP

Greetings from Paris. We are pleased to inform you that the Highlights and Conclusions of the Chalonge CIAS Meudon Workshop Dark Matter in the Universe 2010 (41 pages, 10 figures, 3 photos) have appeared as http://arxiv.org/abs/1007.2411 and are also available (.pdf format) on the web site of this Workshop:

http://www.chalonge.obspm.fr/Cias_Meudon2010.html

———————————————————————
Abstract:

The Workshop approached DM in a fourfold way: astronomical observations of DM structures (galaxy properties, halos, rotation curves and density profiles), DM numerical simulations (with and without baryons), theoretical astrophysics and cosmology (kinetic theory, Boltzmann-Vlasov evolution), astroparticle physics. Peter Biermann, Alfonso Cavaliere, Hector J. de Vega, Gianfranco Gentile, Chandra Jog, Andrea Lapi, Paolo Salucci, Norma G. Sanchez, Pasquale Serpico, Rainer Stiele, Janine van Eymeren and Markus Weber present here their highlights of the Workshop.

The summary and conclusions by H. J. de Vega and N. G. Sanchez stress among other points the growing evidence that DM particles have a mass in the keV scale and that those keV scale particles naturally produce the small scale structures observed in galaxies. Wimps (DM particles heavier than 1 GeV) are strongly disfavoured combining theory with galaxy astronomical observations.

Peter Biermann presents his live minutes of the Workshop and concludes that a right-handed sterile neutrino of mass of a few keV is the most interesting DM candidate. Photos of the Workshop are included.

———————————————————————

We thank all again, both lecturers and participants, for having contributed so much to this Workshop and look forward to seeing you again in a next Meeting of this series.

With Compliments and kind regards

Norma G Sanchez, Hector J de Vega

http://chalonge.obspm.fr

Presentations of 14th Paris Cosmology Colloquium Chalonge 2010

Ecole Internationale d’Astrophysique Daniel Chalonge

The 14th Paris Cosmology Colloquium Chalonge 2010
“The Standard Model of the Universe: Theory and Observations”

We are pleased to inform you that the presentations by the lecturers during the 14th Paris Cosmology Colloquium Chalonge 2010 are available on-line (in pdf format) in “Programme and Lecturers” at the web site of this Colloquium:

http://www.chalonge.obspm.fr/colloque2010.html

http://www.chalonge.obspm.fr/Programme_Paris2010.html

The photographs of the Colloquium capturing moments of the stimulating and outstanding atmosphere created by all lecturers and participants during the Colloquium will be posted soon in this site.

We thank all again, both lecturers and participants, for having contributed so much to this Colloquium and look forward to seeing you again in a next Meeting of this series.

With Compliments and kind regards

Norma G Sanchez, Hector J de Vega

http://chalonge.obspm.fr

Presentations of Workshop CIAS Meudon 2010 “Dark Matter in the Universe and Universal Properties of Galaxies: Theory and Observations”

Ecole Internationale d’Astrophysique Daniel Chalonge

Workshop CIAS Meudon 2010 “Dark Matter in the Universe and Universal Properties of Galaxies: Theory and Observations”

We are pleased to inform you that the presentations by the lecturers during The Chalonge Workshop CIAS Meudon 2010 are available on-line (in pdf format) in “Programme and Lecturers” at the Workshop site:

http://www.chalonge.obspm.fr/Cias_Meudon2010.html

http://www.chalonge.obspm.fr/Programme_CIAS2010.html

The photographs of the workshop will be posted soon on this site.

We thank all again, both lecturers and participants, for having contributed so much to this workshop and look forward to seeing you again in a next meeting of this series.

With compliments and kind regards,

Norma G Sanchez,
Hector J de Vega

http://chalonge.obspm.fr/

Chalonge School CIAS Meudon Workshop Dark Matter 2010

Ecole Internationale d’Astrophysique Daniel Chalonge

CIAS Meudon Workshop 2010 “Dark Matter in the Universe and Universal Properties of Galaxies: Theory and Observations”

at the Meudon campus of Observatoire de Paris, CIAS, in the historic Château building, 8-11 June 2010

The Workshop addresses the problem of Dark Matter in the Universe and the Universal properties of Galaxies, with an effort of clarification and synthesis by combining in a conceptual framework, theory, analytical, observational and numerical simulation results. The subject will be approached in a threefold way:

(I) Conceptual context: Dark Matter in cosmology and astrophysics: current status, perspective and prospective of the research in the subject: theory and observations

(II) Astronomical observations linked to the galaxy structural properties and especially to the universal properties of galaxies: high quality rotation curves, kinematics, density profiles, gravitational lensing, small and large structures.

(III) Numerical simulations, large structures, structures and substructures.

Topics: Kinetic theory and the recent progress in solving the Boltzmann-Vlasov equation to obtain the observed universal properties of galaxies. N-body numerical simulations. The dark matter surface density in galaxies. The phase-space density of dark matter.

Particle model independent analysis of astrophysical dark matter. The mass of the dark matter particle at the keV scale as determined from theory combined to observations and numerical simulations. The impact of the mass of the dark matter particle on the small scale structure formation and the choice of the initial conditions. The radial profiles and the Dark Matter distribution. Cores vs. Cusps.

The recently highlighted keV scale Dark Matter.

Sessions last for four full days in the beautiful Meudon campus of Observatoire de Paris, where CIAS “Centre International d´Ateliers Scientifiques” is located. All sessions take place in the historic Château building, (built in 1706 by great architect Jules-Hardouin Mansart in orders by King Louis XIV for his son the Grand Dauphin).

The Meeting is open to all scientists interested in the subject. The format of the Meeting is intended to allow easy and fruitful mutual contact and communication. All Informations about the meeting and registration to it are displayed at: http://chalonge.obspm.fr/Cias_Meudon2010.html

Early Registration is strongly encouraged

With compliments and kind regards,

Chalonge.Ecole[AT]obspm.fr
http://chalonge.obspm.fr/

14th Paris Cosmology Colloquium 2010

Ecole Internationale d’Astrophysique Daniel Chalonge

The 14th Paris Cosmology Colloquium 2010

The Standard Model of the Universe: Theory and Observations

George Smoot Nobel Prize of Physics and Daniel Chalonge Medal

Thursday 22, Friday 23 and Saturday 24 July 2010

at the parisian campus of Paris Observatory (HQ), in the historic Perrault building.

The Conference is within the astrofundamental physics spirit of the Chalonge School, on recent observational and theoretical progress on the CMB, Inflation, astrophysical dark matter, dark ages, dark energy, and the theory of the early universe with predictive power.

In summary, the aim of the meeting is to put together real cosmological data and hard theory predictive approach connected to them in the framework of the Standard Model of the Universe.

Topics: Observational and theoretical progress in the CMB, astrophysical dark matter, dark energy, dark ages. Large and small scale structure formation. Inflation in connection with the CMB and LSS data, slow roll and fast roll inflation, quadrupole suppression and initial conditions, low CMB multipoles. CMB polarization. Neutrinos in cosmology.

The Meeting is open to all scientists interested in the subject. All Informations about the meeting and registration to it are displayed at:

http://chalonge.obspm.fr/colloque2010.html

Early Registration is strongly encouraged

The format of the Meeting is intended to allow easy and fruitful mutual contact and communication.

Sessions last for full three days in the beautiful parisian campus of Observatoire de Paris (built on orders from Colbert and to plans by Claude Perrault from 1667 to 1672). All sessions take place in the historic Perrault building (“Bâtiment Perrault”) of Observatoire de Paris HQ, under the portraits of Laplace, Le Verrier, Lalande, Arago, Delambre and Louis XIV.

An exhibition will retrace the 19 years of activity of the Chalonge School and George Smoot participation to the School along these 19 years.

Informations on the previous Paris Cosmology Colloquia and of the school events are available at http://chalonge.obspm.fr (lecturers, lists of participants, lecture pdf files and photos during the Colloquia).

With compliments and kind regards

Chalonge.Ecole[AT]obspm.fr
http://chalonge.obspm.fr/

Torino Cosmology Colloquium 2009

The Torino Chalonge Colloquium 2009 “Latest News from the Universe”

George Smoot Nobel Prize of Physics and Daniel Chalonge Medal

Turin, 21-24 October 2009, at the magnificent and historical Palazzo Lascaris, headquarters of the Regional Council of Piemonte

On the occasion of the International Year of Astronomy and the 250th anniversary of the Astronomical Observatory of Torino, the Colloquium “LATEST NEWS FROM THE UNIVERSE” will take place in Torino, with the participation of the 2006 Physics Nobel Prize laureate George Smoot. The spirit of the Colloquium will be in keeping with the Chalonge School’s emphasis on astro-fundamental physics, and the topics on recent observational and theoretical progress made in the CMB, dark matter, dark energy, along with recent satellite data regarding solar physics and space astrometry. The programme includes a special session open to the general public at the Turin Academy of Sciences, and a visit to the Turin Astronomical Observatory and its 250th Anniversary Exhibition.

All Informations about the meeting and registration to it are displayed at :

http://chalonge.obspm.fr/

http://ecolechalongetorino.oato.inaf.it/

Early Registration is strongly encouraged

With compliments and kind regards

Ecole Chalonge <chalonge.ecole_AT_obspm.fr>

Award of the Daniel Chalonge Medal 2009

The Daniel Chalonge Medal 2009 has been awarded to

Professor Peter BIERMANN

The International School of Astrophysics “Daniel Chalonge” has awarded the Daniel Chalonge Medal 2009 to Professor Peter Biermann from the MPI for Radioastronomie of Bonn (D) and University of Alabama-Tuscaloosa (USA).

The medal was awarded to Peter Biermann for his pioneering, impressive and multiple contributions to astrophysics (as for example high energy particle acceleration, cosmic rays, galactic nuclei and black holes), and for his support and outstanding contributions to the Chalonge School. In particular, Peter Biermann is involved in astrophysical dark matter research in the standard model of the universe, one of the most discussed topics in the Chalonge School.

The medal was presented to Peter Biermann on July 25, 2009 during the sessions of the 13th Paris Cosmology Colloquium 2009 at the Observatoire de Paris HQ (historic Perrault building) in the Cassini Hall, on the meridian of Paris, which was attended by about hundred participants from the world over, among them three Chalonge Medals.

Peter Biermann is at the heart of the programs and life of the School, promoting fruitful discussions and work with the participants and supporting the origin and development of new ideas and projects.

The Chalonge Medal, coined exclusively for the Chalonge School by the prestigious Hotel de la Monnaie de Paris (the French Mint), is a totally surprise award and only seven Chalonge medals have been awarded in the 18 year school history.

Science with great intellectual endeavour and a human face. True and healthy science. Outstanding gentleperson scientists. Scientists recipients of the Daniel Chalonge Medal are Ambassadors of the School.

The list of the awarded Chalonge Medals is the following:

1991:Subramanyan Chandrasekhar, Nobel prize of physics.
1992: Bruno Pontecorvo.
2006: George Smoot, Nobel prize of physics.
2007: Carlos Frenk.
2008: Anthony Lasenby.
2008: Bernard Sadoulet.
2009: Peter Biermann.

See the announcement, full history, photo gallery and links at: http://chalonge.obspm.fr
“Click on The Daniel Chalonge Medal 2009” http://chalonge.obspm.fr/Medal_Chalonge2009.pdf

With Compliments and kind regards

Ecole Chalonge <chalonge.ecole[AT]obspm.fr>

http://chalonge.obspm.fr