THE X-RAY OFF-STATE OF THE SUPERSOFT SOURCE CAL-83 AND ITS INTERPRETATION

Authors
ALCOCK C ALLSMAN RA ALVES D AXELROD TS BENNETT DP CHARLES PA COOK KH FREEMAN KC GRIEST K GUERN J LEHNER MJ LIVIO M MARSHALL SL PETERSON BA PRATT MR QUINN PJ RODGERS AW SOUTHWELL KA STUBBS CW SUTHERLAND W
Citation
C. Alcock et al., THE X-RAY OFF-STATE OF THE SUPERSOFT SOURCE CAL-83 AND ITS INTERPRETATION, Monthly Notices of the Royal Astronomical Society, 286(2), 1997, pp. 483-486
Citations number
22
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
286
Issue
2
Year of publication
1997
Pages
483 - 486
Database
ISI
SICI code
0035-8711(1997)286:2<483:TXOOTS>2.0.ZU;2-G
Abstract
We consider simultaneous optical data obtained during the recent X-ray turn-off of CAL 83. Combining the optical behaviour with the observed X-ray decay time, we show that a model of cessation of steady nuclear burning is viable if the white dwarf is massive. Our model provides a natural explanation for the subsequent return of the supersoft X-ray emission.