3 papers
astro-ph.GA2010
VLT Phase Resolved Optical Spectroscopy of the Ultra-Compact Binary HM Cnc
Elena Mason, G. L. Israel, S. Dall'Osso +6
A 321.5 s modulation was discovered in 1999 in the X-ray light curve of HM Cnc. In 2001 and 2002, optical photometric and spectroscopic observations revealed that HM Cnc is a very…
astro-ph2003
Unveiling the nature of the 321s Orbital Period X-ray source RX J0806.3+1527
GianLuca Israel, Luigi Stella, Stefano Covino +5
A nearly simultaneous X-ray/optical (Chandra and VLT) observational campaign of RX J0806.3+1527 has been carried out during November 2001. These observations allowed us to phase th…
astro-ph1999
ESO deep observations of the optical afterglow of GRB990510
G. L. Israel, G. Marconi, S. Covino +6
We present the results of optical observations of the GRB990510 field carried out at different epochs from European Southern Observatory (ESO) telescopes. Deep observations, down t…