The nebular stage of nova GQ MUSCAE - Physical parameters from spectroscopic observations

Details The nebular stage of nova GQ MUSCAE - Physical parameters from spectroscopic observations The nebular stage of nova GQ MUSCAE - Physical parameters from spectroscopic observations

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988msngr..54...33k&link_type=abstract

ESO Messenger (ISSN 0722-6691), Dec. 1988, p. 33-37.

Astronomy and Astrophysics

Astronomy

2

Astronomical Spectroscopy, Nebulae, Novae, White Dwarf Stars, Abundance, Brightness Distribution, Exosat Satellite, Line Spectra, Stellar Envelopes

Scientific paper

Observations conducted at irregular intervals during the nebular stage of nova GQ Muscae between 1984 and 1988 are discussed. The physical parameters of the expanding shell are determined, including electron density, the kinetic temperature at the gas in the expanding shell, chemical abundances, and the mass of the shell. A continuous increase of the ionization of the optical spectrum is observed from March 1984 to June 1988. It is suggested that the ionization is due to photoionization from a hot source. It is concluded that the observations verify the thermonuclear runaway model of the classical nova outburst.

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