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Experimental limits on the contribution of sub-stellar and stellar objects to the galactic halo
R. Ansari
EROS (Expérience de Recherche d'Objets Sombres) has been monitoring the luminosity of 4 million stars in the Large Magellanic Cloud in order to search for gravitational microlensin…
The optical spectrum of HR 4049 (includes a line identification from 3650 to 10850ang)
Eric J. Bakker, Frank L. A. Van der Wolf, Henny J. G. L. M. Lamers +3
High-resolution optical spectra (UES/WHT) of the extreme metal-poor post-AGB star HR4049 were obtained at four different orbital phases. The spectra cover the wavelength region fro…
Dust distribution in disks supplied by small bodies: Is the Beta Pictoris disk a gigantic multi-cometary tail?
A. Lecavelier des Etangs, A. Vidal-Madjar, R. Ferlet
We have evaluated the spatial distribution of dust in disks supplied by colliding or evaporating bodies spread in a small belt. The gradient of the distribution of dust expelled by…
EROS VARIABLE STARS : FUNDAMENTAL-MODE AND FIRST OVERTONE CEPHEIDS IN THE BAR OF THE LARGE MAGELLANIC CLOUD
J. P. Beaulieu, P. Grison, W. Tobin +27
We present CCD phase-binned light curves at 490 nm for 97 Cepheid variable stars in the bar of the LMC. The photometry was obtained as part of the French EROS project and has excel…
SEARCH FOR VERY LOW MASS OBJECTS IN THE GALACTIC HALO
EROS collaboration, E. Aubourg, P. Bareyre +26
We present results from a search for gravitational microlensing of stars in the Large Magellanic Cloud by low mass objects in the Galactic Halo. The search uses the CCD light curve…