Coordinated X-ray and ultraviolet observations of the intermediate polar H2215-086
Maraschi, L.; Tanzi, E. G.; Chiappetti, L.; Belloni, T.; de Martino, D.; Treves, A.; Bonnet-Bidaud, J. M.; Mouchet, M.; Osborne, J.
Italy, France
Abstract
Quasi-simultaneous observations of H2215-086 (=FO Aqr), obtained with Exosat and IUE in 1983 and 1985 are reported. Secular variations in the X-ray flux and in the shape of the rotational light curve are observed. The modulation of the photoelectric absorption cutoff is studied by means of phase resolved X-ray spectra. A possible orbital modulation of the UV emission is also discussed.