Computer Science
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993natur.361..331o&link_type=abstract
Nature (ISSN 0028-0836), vol. 361, no. 6410, p. 331-333.
Computer Science
81
Emission Spectra, Novae, Stellar Evolution, X Ray Sources, Black Body Radiation, Energy Spectra, Exosat Satellite, Stellar Envelopes, Stellar Models
Scientific paper
The detection by the Rosat satellite of GQ Muscae as a very soft blackbodylike source is reported. If the observed X-ray flux is being radiated at the Eddington luminosity from a one solar mass white dwarf, its effective temperature must be about 350,000 K. It is concluded that the white dwarf is burning hydrogen-rich material near its surface. GQ Mus is, however, the only one of 26 recent novae detected in the all-sky Rosat study; this suggests that either most novae eject all their accreted material during outburst or GQ Mus is now burning recently accreted material. GQ Mus appears identical to the supersoft X-ray sources CAL83, CAL87, and RX J0527.8-6954, lending support to the suggestion that these sources are white dwarfs accreting and burning material from a companion.
Krautter Joachim
Oegelman Hakki
Orio Marina
Starrfield Sumner
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