SSS: More photometric observations of RX J0019.8+2156

Details SSS: More photometric observations of RX J0019.8+2156 SSS: More photometric observations of RX J0019.8+2156

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..510..231b&link_type=abstract

THE FIFTH COMPTON SYMPOSIUM. AIP Conference Proceedings, Volume 510, pp. 231-235 (2000).

Computer Science

X-Ray Binaries, Visible

Scientific paper

We present new photometric data of the galactic supersoft X-ray source (SSS) RX J0019.8+2156 taken in Johnson's V band at Loiano Observatory with a two head photoelectric photometer between December 1994 and October 1997. Our observations confirm those already reported by Greiner & Wenzel (1995), Matsumoto (1996), Deufel et al. (1998) and Will & Barwig (1996), as far as orbital period, depth of the light curve, and presence of a secondary minimum are concerned. Considering the years 1955-1997 we found no indication for a period change. The H burning white dwarf model (van den Heuvel et al., 1992) seems to be most capable of explaining the observed phenomena, although the results by Meyer-Hofmeister et al. (1998) are of further interest. Also we propose here that the system is seen at a high orbital inclination, high enough to produce partial eclipses of the accretion disk. .

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