Astronomy and Astrophysics – Astronomy
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...184.4504m&link_type=abstract
American Astronomical Society, 184th AAS Meeting, #45.04; Bulletin of the American Astronomical Society, Vol. 26, p.934
Astronomy and Astrophysics
Astronomy
Scientific paper
Target-of-opportunity observations of the dwarf nova SS Cyg were made by the Extreme Ultraviolet Explorer (EUVE) satellite on 1993 August 17--23. The observations cover the rise and plateau phases of a rare symmetric outburst which began on August ~ 15.5 and which reached maximum at V ~ 8.3 on August ~ 20. During the observations, the EUV brightness of the source as measured by the EUVE Deep Survey instrument (40--190 Angstroms ) rose from ~ 0.02 counts s(-1) to ~ 5 counts s(-1) . The EUV light curve rose more steeply than the optical light curve, manifesting a delay of ~ 1 day on August 17, but only ~ 0.5 day on August 19. The EUV spectrum recorded during this interval extends from the short-wavelength cutoff of the EUVE spectrometer at ~ 70 Angstroms \ down to ~ 130 Angstroms . The spectrum is extremely rich in emission and absorption features due to high-ionization species of Ne, Mg, Si, S, and Fe superposed on a weak `blue' continuum. We present the optical and EUV light curves and short-wavelength EUV spectrum of this outburst of SS Cyg. Simple models are used to constrain the physical conditions of the EUV-radiating plasma as well as the column density of neutral material to the source due to the ISM and possibly the wind of this dwarf nova.
Mattei Janet A.
Mauche Christopher W.
Raymond John C.
No associations
LandOfFree
EUVE Observations of SS Cygni does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with EUVE Observations of SS Cygni, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and EUVE Observations of SS Cygni will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-883265