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Discovery of a peculiar Cepheid-like star towards the northern edge of the Small Magellanic Cloud
J. B. Marquette, P. Tisserand, P. Francois +37
For seven years, the EROS-2 project obtained a mass of photometric data on variable stars. We present a peculiar Cepheid-like star, in the direction of the Small Magellanic Cloud,…
R Coronae Borealis stars in the Galactic Bulge discovered by EROS-2
P. Tisserand, J. B. Marquette, P. R. Wood +33
Rare types of variable star may give unique insight into short-lived stages of stellar evolution. The systematic monitoring of millions of stars and advanced light curve analysis t…
INTEGRAL Observations of the Vela Region Focusing on Vela X-1
Stephane Schanne, Diego Gotz, Lucie Gerard +5
The Vela region has been observed for 1.7 Ms in November 2005 by the INTEGRAL satellite. We present preliminary spectral and temporal results of Vela X-1, an eclipsing neutron star…
Evidence for 1809 keV Gamma-Ray Emission from 26Al Decays in the Vela Region with INTEGRAL/SPI
Stephane Schanne, Patrick Sizun, David Maurin +3
The Vela region is a promising target for the detection of 1.8 MeV gamma-rays emitted by the decays of radioactive 26Al isotopes produced in hydrostatic or explosive stellar nucleo…
Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
P. Tisserand, L. Le Guillou, C. Afonso +35
The EROS-2 project was designed to test the hypothesis that massive compact halo objects (the so-called ``machos'') could be a major component of the dark matter halo of the Milky…
Removing the Microlensing Blending-Parallax Degeneracy Using Source Variability
R. J. Assef, A. Gould, the EROS-2 +2
Microlensing event MACHO 97-SMC-1 is one of the rare microlensing events for which the source is a variable star, simply because most variable stars are systematically eliminated f…