J/A+A/327/1017 GO Cygni system (Rovithis-Livaniou+ 1997)
The GO Cygni system: a near contact eclipsing binary
Rovithis-Livaniou H., Rovithis P., Oprescu G., Dumitrescu A., Suran M.D.
<Astron. Astrophys. 327, 1017 (1997)>
=1997A&A...327.1017R 1997A&A...327.1017R (SIMBAD/NED BibCode)
Keywords: stars: cataclysmic variables - accretion disks - individual: IP Peg
Abstract:
We present UBVRI observations of 4 eclipses of the dwarf nova IP Peg
on decline from an outburst. The dataset was obtained during a
long-term observing campaign between July 1990 and December 1991.
Maximum entropy techniques are used to derive the intensity
distribution in colors UBVRI and the brightness temperature
distribution of the disk. The disk maps show a 7000-9000 Kelvin inner
disk zone surrounded by an outer disk zone with declining temperature.
During decline from outburst the boundary between this two zones of
the disk travels inward with a speed of about 800m/s.
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(End) Patricia Bauer [CDS] 14-Nov-1997