Interstellar Extinction in the Gaia Photometric Systems

Abstract

Three medium-band photometric systems proposed for the Gaia space mission are intercompared in determining color excesses for stars of spectral classes from O to M at V = 18 mag. A possibility of obtaining a three-dimensional map of the interstellar extinction is discussed.

Keywords

• techniques
• photometric
• stars
• fundamental parameters
• interstellar extinction
• gaia orbiting observatory