Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.281a.141g&link_type=abstract
In ESA, A Decade of UV Astronomy with the IUE Satellite, Volume 1 p 141-144 (SEE N89-10682 01-89)
Astronomy and Astrophysics
Astronomy
6
Iue, Spaceborne Astronomy, Ultraviolet Astronomy, X Ray Binaries, Absorption Spectra, Emission Spectra, Mass Transfer, Stellar Physics, Stellar Winds
Scientific paper
The transient X-ray binary system A 0535+26/HDE 245770 was monitored at different wavelengths since its discovery as X-ray emitter. These coordinated observations reveal correlations in the variability of the optical and X-ray emissions. During activity periods of the system, UV discrete absorption components in Si IV and C IV resonance lines whose velocities vary between -300 and -600 km/sec were detected. The study of the narrow absorption components at the expected activity epochs (periastron passages of the neutron star) simultaneously with X-ray, optical, and IR observations is essential for a better knowledge of the wind structure of the Be star and its interaction with the neutron star. The physics and dynamics of mass transfer at periastron and subsequent X-ray flaring, are emphasized.
Bartolini Corrado
Burger Marc
Giovannelli Franco
Guarnieri Adriano
Kurt Victoria G.
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