Splinter meeting of the AG2011, September 21 & 22, 2011
"The Milky Way: Surveys and Survey Instruments (SSI)"
SOC: Andreas Quirrenbach, N.N., N.N. (contact: A.Quirrenbach@lsw.uni-heidelberg.de)
Scientific RationaleESA's cornerstone mission Gaia will revolutionize our understanding of the structure and formation of the Milky Way. Its astrometric measurements will determine parallaxes and proper motions of about 1 billion stars of mG < 20 mag (corresponding roughly to mr < 19.5 mag). To complete the 6D phase-space information of the stars Gaia also provides spectroscopic measurements of the Ca II triplet region, however only to mG < 16 mag for K giants and even more limited for bluer stars. Therefore most stars measured by Gaia astrometrically will not have spectroscopic data to provide radial velocities and metallicities.A number of very large ground-based surveys have been initiated to cover these critical gaps. These include the GAIA-ESO Survey using FLAMES at the VLT, and two projects (4MOST and WEAVE) aimed at constructing wide-field spectroscopic survey facilities at 4m class telescopes. In addition, ongoing photometric and spectroscopic surveys using smaller telescopes and/or covering smaller target samples are already changing our view of the Milky Way. The splinter meeting will provide an over-view of Milky Way surveys and the corresponding survey instruments, and will assess to which extent the currently planned facilities will satisfy the scientific needs that will arise in the GAIA era. Preliminary List of Review Speakers:
Contributed Talks:
Programme:
|
|
Bearbeiter: Email
