Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001stin...0179077h&link_type=abstract
Technical Report, Georgia Univ. Athens, GA United States Dept. of Physics and Astronomy
Astronomy and Astrophysics
Astronomy
Atmospheric Models, Novae, Continuous Spectra, Stellar Atmospheres, Andromeda Galaxy, Light Curve, Ultraviolet Spectra, Bolometers, Stellar Luminosity
Scientific paper
LMC 1988 #1 was a slow, CO type, dust forming classical nova. It was the first extragalactic nova to be observed with the IUE satellite. We have successfully fitted observed ultraviolet and optical spectra of LMC 1988 #1 taken within the first two months of its outburst (when the atmosphere was still optically thick) with synthetic spectra computed using PHOENIX nova model atmospheres. The synthetic spectra reproduce most of the features seen in the spectra and provide V band magnitudes consistent with the observed light curve. The fits are improved by increasing the CNO abundances to 10 times the solar values. The bolometric luminosity of LMC 1988 #1 was approximately constant at 2 x 1038 ergs per second at a distance of 47.3 kpc for the first 2 months of the outburst until the formation of the dust shell.
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