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astro-ph2005
On the nature of X-Ray Flashes
C. Barraud, F. Daigne, R. Mochkovitch +1
We discuss the origin of X-Ray Flashes (XRFs), a recently discovered class of Gamma-Ray Bursts (GRBs). Using a simplified model for internal shocks we check if XRFs can be intrinsi…
astro-ph2005
The precision of large radio continuum source catalogues- An application of the SPECFIND tool
B. Vollmer, E. Davoust, P. Dubois +3
The accuracy in position and flux density of 19 large radio continuum source catalogues has been determined using SPECFIND, a new tool recently made available through the CDS. The…
astro-ph2003
Spectroscopic analysis of newborn massive stars in SMC N81
F. Martins, D. Schaerer, M. Heydari-Malayeri
We present the first results of a spectroscopic study of young massive stars in the SMC High Excitation Blob N81. These stars have Mv values which are ~ 2 mag smaller than those of…