FUSE FUV Spectroscopy of the Recent, Unexpected Outburst of WZ Sagittae

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The short-period cataclysmic variable WZ Sge underwent its first dwarf nova outburst in 23 years last summer and fall. Because of its proximity, very long interoutburst interval, and period near the minimum expected for CVs, this outburst represents a unique opportunity to exploit the FUV capabilities of FUSE to study the physics of disks in CVs as well as the effect of a dwarf nova outburst on a WD photosphere. FUSE spectra were obtained during the outburst phase and are being obtained during the decline phase. The outburst spectrum, obtained about 7 days after the outburst began, is dominated by a broad (50-60 Å EW) feature due to OVI and can be characterized in terms of emission from a highly inclined disk modulated by the effects of a highly ionized wind. WZ Sge is fainter in later observations (starting about 46 days into the outburst) and increasingly "red'' in the FUV. The spectral shape increasingly resembles that expected from a metal-enriched WD photosphere. However, some disk contribution must remain at least through day 68 of the outburst. We will discuss our ongoing attempts to model the spectra of the outburst as a combination of disk, wind. We will emphasize specifically the effect of the outburst on the WD surface temperatures and abundances.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

FUSE FUV Spectroscopy of the Recent, Unexpected Outburst of WZ Sagittae 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 FUSE FUV Spectroscopy of the Recent, Unexpected Outburst of WZ Sagittae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FUSE FUV Spectroscopy of the Recent, Unexpected Outburst of WZ Sagittae will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1231994

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.