Late stages in the evolution of classical novae
- Arizona State Univ., Tempe, AZ (USA). Dept. of Physics Los Alamos National Lab., NM (USA) Colorado Univ., Boulder, CO (USA). IUE Regional Data Analysis Facility
- Landessternwarte auf dem Koenigstuhl bei Heidelberg (Germany, F.R.) Colorado Univ., Boulder, CO (USA). IUE Regional Data Analysis Facility
- National Aeronautics and Space Adminis
We have begun a study of the long term evolution of novae in outburst in order to determine the means by which they return in quiescence when nuclear burning has ended. This project involves both IUE and optical observations and theoretical predictions. Recently, in the initial observational part of this project, we have obtained IUE SWP spectra of GQ Mus 1983 and QU Vul 1984. Each spectrum was a 16 hour exposure using a combined US1 plus Vilspa shift. No novae have been studied in the UV for as long as QU Vul and GQ Mus and observations of their spectral evolution are providing unique data on the turn-off time scale. We have also obtained the spectra of old novae from the IUE archives in order to compare and contrast the existing spectra with those of GQ Mus and Qu Vul. The theoretical prediction is that a nova should be very hot just before turnoff but x-ray observations from EXOSAT do not confirm this prediction. 18 refs., 12 figs., 1 tab.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- DOE/MA
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6601522
- Report Number(s):
- LA-UR-90-2389; CONF-9005248-2; ON: DE90014911
- Resource Relation:
- Conference: Evolution in astrophysics: IUE astronomy in the era of new space missions, Toulouse (France), 29 May - 1 Jun 1990
- Country of Publication:
- United States
- Language:
- English
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