Abstract
view Abstract Citations (21) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On transient thermal X-ray emission from novae. Brecher, K. ; Ingham, W. H. ; Morrison, P. Abstract The motion of an ejected nova shell through circumstellar matter is considered as a mechanism for thermal X-ray continuum production. Assuming that a nova system is fueled by steady mass transfer and that circumstellar matter is built up at a given rate, calculations are performed for two simplified alternatives for the circumstellar matter distribution at distances that are large in comparison with the orbital radius. The X-ray production efficiency is estimated, an expression is obtained for the expected X-ray light curve, and it is shown that an expanding nova shell can generate a circumstellar X-ray power that is large enough to be potentially relevant to the transient source A0620-00. The results are compared with observations of Nova Cygni 1975 and A0620-00; it is concluded that recurrent novae are the most likely X-ray source candidates among novae. Publication: The Astrophysical Journal Pub Date: April 1977 DOI: 10.1086/155180 Bibcode: 1977ApJ...213..492B Keywords: Novae; Stellar Envelopes; Stellar Models; Thermal Emission; X Ray Sources; Energy Conversion Efficiency; Interstellar Matter; Light Curve; Mass Transfer; Stellar Mass Ejection; Transient Response; Astrophysics full text sources ADS |
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