Models for the remnants of recurrent novae - III. Comparison with the X-ray observations of RS Ophiuchi (1985).
Abstract
The X-ray emission predicted by a model for the interaction of ejecta with a circumstellar medium is compared to Exosat observations of the 1985 outburst of the recurrent nova RS Ophiuchi. The model parameters are constrained by fitting the predicted spectrum to the first X-ray observation, made 55 days after the outburst, and are found to be consistent with the existing estimates: the outburst energy approximately equals 1.1 x 10 exp 43 erg; ejecta mass approximately equals 1.1 x 10 exp -6 solar masses; and mass-loss rate into the wind of the red giant component approximately equals 6 x 10 exp 12 g/cm. Once these parameters are fixed the model predicts the subsequent evolution of the X-ray emission. It is noted that the finite nature of the volume filled by preshock red giant wind should be taken into account. The behavior of the remnant once the shock breaks out from this confining medium is numerically calculated.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 1992
- DOI:
- 10.1093/mnras/255.4.683
- Bibcode:
- 1992MNRAS.255..683O
- Keywords:
-
- Stellar Mass Ejection;
- Stellar Winds;
- Supernova Remnants;
- X Ray Astronomy;
- X Ray Spectra;
- Astronomical Models;
- Computational Astrophysics;
- Exosat Satellite;
- Light Curve;
- Satellite Observation;
- Shock Wave Interaction;
- Astrophysics