Gaia Chemo-Dynamical Survey: Survey science - November 2, 3 & 4 - 2010 in Nice
Tuesday 4 January 2011 by Rousset Sophie , Hill Vanessa



 2 - 4 November, 2010 - Nice France - 

Registration (CLOSED) / 

Important Dates

  • September 30, 2010: Deadline for Abstract submission
  • September 24, 2010: Deadline for financial support application
  • September 30, 2010: Registration deadline
  • October 10, 2010: Hotel booking deadline in "LA MAISON DU SEMINAIRE" (block-reservations for the workshop end at this date)
  • November 2, 2010: Beginning of the conference




Prompted by the recognised need to secure a ground-based spectroscopic complement to Gaia, we propose to hold 2-4 november 2010 in Nice, France, a 50-participant workshop centered on the “Gaia Chemo-Dynamical Survey” (GCDS) Survey science. We aim to open the initial GCDS to supporting communities, to enhance its scientific outcome and discuss its implementation across the existing and planned instruments, in particular the forthcoming ESO call for Large Public spectroscopic Survey.

Scientific summary:

Gaia will provide an unprecedented map of the positions, kinematics and spectrophotometry of a billion stars in the Milky Way, allow a quantum leap on our knowledge of the Galaxy and its stellar populations. We will be able to dissect the different Galactic components and confront this detailed structure with models of galaxy formation and their cosmological context. The full three dimensional velocity vector of a large number of stars, and their detailed chemical composition will allow to address crucial questions such as the amount and distribution of dark matter in the Galaxy and the formation and evolution of the different Galactic components. Nonetheless, our picture of the Milky Way will be hampered in two ways: the low resolution spectrograph on-board (RVS) will not reach the same limiting magnitude as the rest of the Gaia instruments and its resolution (R=11 500 for stars brighter than about 10 and R<6500 for fainter stars) and small wavelength coverage, are not well suited for detailed studies of elemental abundances. Read full text here


The meeting will take place at the LA MAISON DU SEMINAIRE in Nice, France.

La maison du Séminaire

29, boulevard Franck Pilatte - 06300 Nice

Tél: + 33 (0) - Fax : +33 (0) -



Please find more details about accomodations and transportation by following this link.

WARNING: We recommend booking a hotel as soon as possible. We have a number of rooms block-reserved at the Maison du Séminaire until the 10th of October.

Note: Each participant is expected to make his own reservation by getting in touch with the Hotel.


Olivier Bienaymé, Piercarlo Bonifacio, Sofia Feltzing, Eva Grebel, Gerry Gilmore, Amina Helmi, Vanessa Hill (Chair), Nami Mowlavi, Sofia Randich, Mathias Steinmetz, Floor Van Leeuwen, Nic Walton.


Alejandra Recio-Blanco, Patrick de Laverny, Clare Worley, Sophie Rousset, Sylvie Goletto.


WARNING: Upon approval/denial of pre-registrations, an authomatic e-mail will be sent. Approved pre-registered participants will have to finalize their inscription following the link sent in the authomatic e-mail or following this link.

Registration will close on October 13th, 2010

Registration fee: 120 Euros

The fees will cover:

  • Cost of conference facilities
  • Coffe breaks (two per day)
  • Lunch (for three days)

Financial support can be required by September 24 (new extended deadline). Priority will be given to young scientists (MSc. or Ph.D candidates).

Please note, that ESF sponsorship requires to have the workshop list of participants with professional information.

Abstract submission

 To apply for a talk, abstracts should be sent to BEFORE September 30th, with the following information:


Email object: "GCDS Nice: abstract"

- Name, affiliation, position (student/postdoc/staff)

- Title of talk

- Abstract


Financial support

Applications for financial support should be sent to and BEFORE September 24th, with the following information:


Email object: "GCDS Nice: funding application"

- Name, affiliation, position (student/postdoc/staff)

- I apply for support of :

* registration fees


* local expenses (per diem of 90Eur/day to cover accommodation + 1 meal): indicate days of arrival and departure


* travel expenses: please include a quote for the travel expense



 Please click on speaker’s name to reach the presentation.

Tuesday 2nd November

           Session I : Context, Udate on Gaia performances

 9:30  - Welcome and meeting scope

 9:40  - Gaia Status (T. Prusti) 

10:10  - Specificities of the RVS observations, processing and performances (D. Katz)

10:30  Coffee break

               Session I : Context, udate on Gaia performances

11:00  - LSST Chemo-Dynamical Survey of the Milky Way and Synergy with Gaia (Z. Ivezic

11:20  - GREAT Intro and Status Updates; The GCDS programme (N. Walton)

11:35 Session II : VLT Spectroscopic Public Survey: Reports on the LoIs submitted to ESO

11:35  - Report from the GCDS-Milky Way (G. Gilmore)

12:10  - Report from the GGCDS-Open Cluster (R. Jeffries/S.Randich)

 12:45  Lunch

 14:00 Session II (continued): VLT Spectroscopic Public Survey: Contributions to the Science cases

14:00  - What we do not know about the halo (R. Schoenrich)

14:20 - The early evolution of globular clusters and their stellar contribution to the Galactic halo (C. Charbonnel)

14:40 - Radial velocities from the GCDS and the kinematic groups induced by the bar and the spiral arms of the MW (T. Antoja)

15:00  - Transient spiral arms and chemo-dynamics of the Galactic disk (D. Kawata)

15:20  - GAIA and 3D mapping of the ISM (R. Lallement)

15:40  - discussions

16:00  Coffee break

16:30 Session II (continued): VLT Spectroscopic Public Survey: Contributions to the Science cases

16:30  - Old open clusters and the Galactic disk (A. Bragaglia)

16:50  - Abundance studies in massive clusters: why and how (C. Gonzales)

17:10  - Pre-main sequence stars in open clusters (A. Delgado)

17:30  - discussions

18:00  end of the day


Wednesday 3rd November

     Session II (continued): VLT Spectroscopic Public Survey: Contributions to the Science cases

9:00 - SE4 in the GCDS and the contribution of chemical tagging to the exploitation of Gaia data for the study of variable stars (N. Mowlavi)

 9:30  - Stellar archeology with GAIA: the galactic white dwarf population (S. Jordan)

 9:50      - Cepheid distance scale in the era of spectroscopic surveys (B. Lemasle)

10:10  - A MARCS grid of stellar atmospheres for giants with 0.5<C/0<1: stellar parameters and abundance determinations (S. Van Eck)

10:30  Coffee break

11:00         Session III : VLT Spectroscopic Public Survey: survey strategies and tradeoffs

11:00  - VLT Spectroscopic Public Survey: Survey Strategy (C. Babusiaux)

11:30 - Discussions: optimizing the survey strategy; GCDS consortium organisation

12:00     Session IV : Analysing spectroscopic data: current methods & performances, needs for new developments

12:00  - Algorithms developed in the Gaia context and their applicability (A. Recio-Blanco)

 12:30  Lunch

 14:00  Session IV (continued): Analysing spectroscopic data: current methods & performances, needs for new developments

14:00  - Lessons from RAVE for stellar science with GCDS (T. Zwitter)

14:30 - Extracting velocities and chromospheric activity indices from fibre spectroscopy in the far red (R. Jeffries)

14:50  - SPADES: a Stellar PArameter DEtermination Sorftware (H. Posbic)

15:10 - Automated Abundance Analyses with SME — current limitations and future prospects (P. Gruyters)

15:30  - The AMBRE Project: Tests of MATISSE on large spectral datasets from the ESO archive (C. Worley)

15:50  Coffee break

16:30     Session V GCDS consortium organisation

16:30  - Discussions: organisation for the proposal stage, ESO-survey management plan

17:30  - CFHT/Gyes and an IR-extension of VLT/FLAMES (P. Bonifacio)

18:00  end of the day


Thursday 4th November

Session VI: Reports on new instrumental developments and ongoing/planned surveys

9:00 - Ongoing and planned spectroscopic and photometric sky surveys of interest to Gaia (Grebel)

 9:30      - GALEP, the EMIR survey of the Galactic plane (F. Garzon)

 9:50      - Progress update for LAMOST and related surveys (M. Smith)

10:10 - Discussions: planning the GCDS in the era of other surveys (complementarity/co-operation/competition)

10:30  Coffee break

Session VI : Reports on new instrumental developments and ongoing/planned surveys

11:00  - 4mMOSST - 4m Multi-Object Spectroscopic Survey Telescope (de Jong)

11:20  - WHT/WEAVE (G. Dalton) 

11:40 - Science with GO-IRS: an optical multi-object spectrograph proposed for the 10.4m Gran Telescopio Canarias (D. Montes) 

12:00  - Discussions: planning the GCDS beyond existing instrumentation

 13:00  Lunch

 14:00  end of the plenary session

 14:00  possible group meetings/discussions (LPSS stiring group, SE, ...)

 16:00  End of the workshop



Participants (55)

Altmann Martin  Astronomisches Recheninstitut der Universitaet Heidelberg
 Asplund Martin
antoja Teresa  Kapteyn Institute, University of Groningen
BABUSIAUX Carine  GEPI, Observatoire de Paris
Bienaymé Olivier  Observatoire astronomique
 Bonifacio Piercarlo GEPI
Bragaglia Angela  INAF-Osservatorio Astronomico di Bologna
 Ricardo Instituto de Astrofisica de Canarias
Charbonnel Corinne  Observatoire de Genève
Clementini gisella  INAF Osservatorio Astronomico di Bologna
Curir Anna  Astronomical Observatory of Torino
Dalton Gavin  RALSpace
 Antonio Jesús
Instituto de Astrofísica de Andalucía. CSIC. 
de Jong Roelof  Astrophysikalisches Institut Potsdam
de Laverny Patrick  Cassiopee - OCA
Feltzing Sofia  Lund Observatory
Ferguson Annette  Institute for Astronomy, University of Edinburgh
Few Christopher  Jeremiah Horrock Institute
Instituto de Astrofísica de Canarias 
Gilmore Gerry  IoA Cambridge
Gonzalez-Fernandez Carlos  Universidad de Alicante
Grebel Eva  University of Heidelberg
Gruyters Pieter  Uppsala University
Helmi Amina  Kapteyn Institute
Hill Vanessa  Laboratoire Cassiopée, Observatoire de la Côte d’Azur
Ivezic Zeljko  University of Washington
Jeffries Robin  Keele University
Jordan Stefan  Astronomisches Rechen-Institut, Zentrum fuer Astronomie Heid
Katz David  Observatoire de Paris
Kawata Daisuke  Mullard Space Science Laboratory
Kordopatis Georges  Cassiopée
Lemasle Bertrand  Kapteyn Astronomical Institute
Mignard Francois  Laboratoire Cassiopée, Observatoire de la côte d’azur
Montes David  Dept. Astrophysics, Fac. Fisicas, UCM
Mowlavi Nami  Geneva Observatory / ISDC
MUNARI ULISSE  INAF Astronomical Observatory of Padova
Pancino Elena  INAF-OABO
Posbic Hélène  Observatoire de Paris Meudon - GEPI
Primas Francesca  ESO
Prusti Timo  ESA
Ramos-Lerate Mercedes  ESAC
Recio-Blanco Alejandra  Observatoire de la Côte d’Azur
Robin Annie  Institut Utinam, Observatoire de Besancon
Ruchti Gregory  Max Planck Institute for Astrophysics
Sbordone Luca  Max Planck Institute for Astrophysics
Schönrich Ralph  MPA
Skillen Ian  Isaac Newton Group
Smith Martin C.  Kavli Institute for Astronomy and Astrophysics
 Caroline Laboratoire d’Astrophysique de Bordeaux - UMR 5804
Van der Swaelmen Mathieu  Laboratoire Cassiopée
Van Eck Sophie  Institut d’Astronomie et d’Astrophysique, Université Libre
Walton Nicholas  Institute of Astronomy, University of Cambridge
Worley Clare  Observatoire de la cote d’Azur
Zwitter Tomaz  University of Ljubljana
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