Review of results from EROS Microlensing search for Massive Compact Objects

2009/01/08 by M. Moniez, Moniez, M.
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Stellar, planetary, and galactic studies

paper · pdf · doi:10.48550/arxiv.0901.0985

openalex publication_date 2009/01/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present the results of the EROS2 search for the hidden galactic matter of the halo through the gravitational microlensing of stars in the Magellanic clouds. Microlensing was also searched for and found in the Milky-Way plane, where foreground faint stars are expected to lens background stars. A total of 67 million of stars were monitored over a period of about 7 years. Hundreds of microlensing candidates have been found in the galactic plane, but only one was found towards the subsample of bright --well measured-- Magellanic stars. This result implies that massive compact halo objects (machos) in the mass range 10^-7M_\odot

Related

• EROS: a Galactic Microlensing Odyssey
• Some results based on the EROS microlensing survey
• Preliminary results on galactic dark matter from the complete EROS2 microlensing survey
• EROS2 microlensing search towards the Magellanic Clouds
• Observational Limits on Machos in the Galactic Halo