The purpose of these exercises is to simulate finding astrophysical parameters from Gaia data, and addressing scientific problems through this. Our main focus is on using the low resolution BP/RP data for this, but we can include the information from astrometry and possibly also high-resolution RVS data. The exact aim depends on which challenges are suggested and which are popular.

In Gaia Challenge II, this package was organized by Rene Andrae and Kester Smith

In Gaia Challenge III, this package is organized by Melissa Ness and Kester Smith

Second workshop astrophysical parameters

Third workshop astrophysical parameters

• Challenge 1: Moving groups
• Challenge 2: Reference stars
• Challenge 3: Fit BP/RP and RVS
• Challenge 4: Build realistic test data