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| Paper: |
ROSAT X-Ray Light Curves and Spectra of II Peg |
| Volume: |
154, Cool Stars, Stellar Systems and the Sun: Tenth Cambridge Workshop |
| Page: |
1070 |
| Authors: |
Huenemoerder, David; Baluta, Christopher |
| Abstract: |
We discuss an analysis of an 60 ks observation (with 18 ks good-time) of the RS CVn binary, II Pegasi, with the ROSAT PSPC. II Peg was a bright source, with an average count-rate of 10 counts per second in range from 0.1 to 2.5 keV. The rate showed a steady linear decline during the observation, from 10 cts s^{-1} at the beginning 8 cts s^{-1} at the end. No significant evidence of flare activity was seen. Spectral fits were obtained for individual observation intervals. Preliminary fits gave similar results: the best fit of a two-temperature Raymond-Smith plasma gave kT(low) of 0.2 keV, and kT(high) of 1.3 keV, in an emission-measure ratio of 1 to 3. |
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