The ultrashort period dwarf nova SW ursae majoris |
| |
| Authors: | A W Shafter J A Hill E L Robinson P Szkody J R Thorstensen M A Wood |
| |
| Institution: | (1) Dept. of Astronomy, University of Texas, Austin, TX, USA;(2) Dept. of Astronomy, University of Washington, Seattle, WA, USA;(3) Dept. of Physics & Astronomy, Dartmouth College, Hanover, NH, USA |
| |
| Abstract: | SW UMa is an unusual dwarf nova in several respects. Recent observations by Robinsonet al. (1986) have established that SW UMa is an SU UMa system, while Shafter, Szkody, and Thorstensen (1986) have presented evidence suggesting that SW UMa may be a DQ Her system as well. If the DQ Her classification is confirmed then SW UMa will be the only system to have this dual classification. Finally, time resolved spectroscopy of SW UMa has revealed the presence of an S-wave component in the H emission which has an unexpected phasing relative to the line wings.Paper presented at the IAU Colloquium No. 93 on  Cataclysmic Variables. Recent Multi-Frequency Observations and Theoretical Developments , held at Dr. Remeis-Sternwarte Bamberg, F.R.G., 16–19 June, 1986. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
