Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-01-06
Astronomy and Astrophysics
Astrophysics
4 pages, 3 figures, submitted for publication in A&A Letters
Scientific paper
We present an analysis of the light curves of 9.1 million stars observed during three seasons by EROS (Experience de Recherche d'Objets Sombres), in the Galactic plane away from the bulge. Seven stars exhibit luminosity variations compatible with gravitational microlensing effects due to unseen objects. The corresponding optical depth, averaged over four directions, is tau = 0.45 +0.24 -0.11 x 10^-6. While this value is compatible with expectations from simple galactic models under reasonable assumptions on the target distances, we find an excess of events with short timescale towards the direction closest to the Galactic Centre.
No associations
LandOfFree
Observation of Microlensing towards the Galactic Spiral Arms. EROS II 3 year survey does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Observation of Microlensing towards the Galactic Spiral Arms. EROS II 3 year survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of Microlensing towards the Galactic Spiral Arms. EROS II 3 year survey will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-670357