Orateur
Tristan Blaineau
(LAL)
Description
Gravitational microlensing imposes constraints on the massive compact object abundance within the Galactic halo. To estimate the effectiveness of microlensing search analysis, it is necessary to know the number of stars surveyed. However an identified source in the catalogue can be composed of several stars that could not be separated by the instrument (blending). These stars may be accidentally close along the line of sight or they may be physically bounded, as in the case of binaries.
I analyzed the Gaia EDR3 data in a purely statistical way using stars between 50 and 500pc to estimate the stellar binarity rate and evaluate its impact on a microlensing search.
| Field | Solar & Stellar Physics |
|---|
Auteur principal
Tristan Blaineau
(LAL)
