Astrometry and Astrophysics in the Gaia Sky (IAU S330)

Reviews ESA's Gaia mission activities to measure the distances and ages of a billion stars with unprecedented accuracy.

Alejandra Recio-Blanco (Edited by), Patrick de Laverny (Edited by), Anthony G. A. Brown (Edited by), Timo Prusti (Edited by)

9781107170087, Cambridge University Press

Hardback, published 19 April 2018

500 pages
25.6 x 18 x 2.2 cm, 0.85 kg

Astrometry has historically been fundamental to all the fields of astronomy, driving many revolutionary scientific results. ESA's Gaia mission is astrometrically, photometrically and spectroscopically surveying the full sky, measuring around a billion stars to magnitude 20, to allow stellar distance and age estimations with unprecedented accuracy. With the complement of radial velocities, it will provide the full kinematic information of these targets, while the photometric and spectroscopic data will be used to classify objects and astrophysically characterize stars. IAU Symposium 330 reviews the first 2.5 years of Gaia activities and discusses the scientific results derived from the first Gaia data release (GDR1). This significant increase in the precision of the astrometric measurements has sharpened our view of the Milky Way and the physical processes involved in stellar and galactic evolution. To many, the Gaia revolution heralds a transformation comparable to the impact of the telescope's invention four centuries ago.

1. The Gaia sky
2. Astrometry and fundamental physics
3. Galactic archaeology
4. Stellar physics
5. Solar system and exoplanets.

Subject Areas: Astrophysics [PHVB], Physics [PH], Astronomical observation: observatories, equipment & methods [PGG], Astronomy, space & time [PG], Mathematics & science [P]