Action Spécifique Gaia

Ensemble des textes publiés

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Présentation de l’AS Gaia pendant la session plénière

Elle a été donnée cette année par Bertrand Plez, le mardi 21 juin au matin, et a porté sur l’impact de Gaia sur la Physique Stellaire et sur les travaux préparatoires à entreprendre pour exploiter au mieux les diverses données attendues de Gaia sur les étoiles (distances et mouvements mais aussi spectrophotométrie et spectroscopie) : Stellar physics with GAIA.

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Atelier A03, Stellar and Interstellar physics for the modelling of the Galaxy and its components, SF2A-SEA-AS Gaia-PNPS-PNCG-PCMI

Lundi 20 juin 2011, Paris, FIAP

Président de séance : Xavier Luri


14h00-14h25	F. Mignard : The Gaia mission : status and expected performance
14h25-14h50	R. Ibata : Constraining the merger history of the Milky Way and its neighbours
14h50-15h15	F. Figueras : Kinematic imprints from the bar and spiral structures in the galactic disk
15h15-15h30	M. Guittet : Study of the stellar populations of the Milky Way in CFHTLS fields
15h30-15h45	G. Kordopatis : Properties of the thick disc far from the Solar neighborhood
15h45-16h00	A. Robin : Simulating the Galaxy and applications to the preparation of the Gaia mission


16h00-16h30	Pause

Présidente de séance : Céline Reylé


16h30-16h55	P. Di Matteo : Numerical chemo-dynamical modelling of the Galaxy
16h55-17h20	X. Luri : Luminosity calibrations and distances in the Galaxy and Local Group
17h20-17h45	E. Moraux : Stellar census and early dynamical evolution of open clusters
17h45-18h00	H. Bouy : Le projet DANCE (Dynamical Analysis of Nearby ClustErs)
18h15-18h15	B. Rocca : Evolution of our Galaxy with the high-resolution version of the code PEGASE

Mardi 21 juin 2011

Présidente de séance : Francesca Figueras


14h00-14h25	C. Turon, F. Arenou & M. Haywood : Four years of actions in AS Gaia
14h25-14h50	C. Allende-Prieto : Determination of stellar parameters and their uncertainties
14h50-15h15	E. Caffau : Perspective in detailed element abundance determination
15h15-15h30	T. Decressin : Building part of the Galactic halo from globular clusters
15h30-15h45	S. Dib : Feedback Regulated Star Formation : From star Clusters to Galaxies
15h45-16h00	P. Ocvirk : Signature of the internal reionisation of the Milky Way in the radial distribution of its satellites ?


16h00-16h30	Pause

Présidente de séance : Christine Joblin


16h30-16h55	N. Feautrier and A. Spielfieldel : Collision rates and the determination of atmospheric parameters
16h55-17h20	D. Valls-Gabaud : Stellar ages in the context of Gaia
17h20-17h45	D. Marshall : Towards a 3D view of the Galactic interstellar medium with Planck, Herschel and Gaia
17h45-18h00	D. Paradis : Galactic dust properties

Posters

David Bancelin	Orbits of Potentially Hazardous Asteroids using Gaia and ground-based observations
Roger Cayrel et al.	The Halpha Balmer line as an effective temperature criterion I. calibration using 1D stellar atmospheres
Laurent Chemin et al.	Calibration of the Gaia RVS : ground-based radial velocities observations of the candidate reference stars
Nicolas Gaudin & Hervé Wozniak	Dust mass in chemodynamical simulations
Céline Guédé & Yveline Lebreton	Different methods to determine the ages of stars from their position in the HR diagram
Jean-Louis Halbwachs et al.	New SB2 for accurate masses with Gaia
T. Kılıçoğlu et al.	Chemical abundances for A and F dwarfs in the young open cluster M6
Thomas Masseron	Carbon enhanced metal-poor stars : witnesses of the first generation of stars
David Montes et al.	Stellar parameters and chemical tagging of nearby FGK stars : testing membership to stellar kinematic groups
Deborah Paradis et al.	Evidence for dust emission in the ionized medium of the Large Magellanic Cloud
Hélène Posbic et al.	SPADES : a Stellar PArameter DEtermination Software
Arvind S. Rajpurohit et al.	The physical parameters of the low-mass triple system LHS1070 from spectral synthesis analysis
Isabelle Ristorcelli et al.	Planck Early results : The first all-sky survey of Galactic cold clumps
Monique Spite et al.	NLTE determination of the Calcium abundance in the very metal-poor stars