Elemental abundances for Nova V693 Coronae Austrinae 1981

Details Elemental abundances for Nova V693 Coronae Austrinae 1981 Elemental abundances for Nova V693 Coronae Austrinae 1981

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.290...87v&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 290, Issue 1, pp. 87-98.

Astronomy and Astrophysics

Astronomy

27

Stars: Abundances, Stars: Individual: V693 Cra, Novae, Cataclysmic Variables, Ultraviolet: Stars

Scientific paper

We present an analysis of the UV spectra of the fast ONeMg nova V693 Coronae Austrinae 1981. Observations with IUE began on 1981 April 10 and continued until 1981 November 14. We find the reddening for the nova to be E(B-V)~=0.2+/-0.1. Using the photoionization code cloudy90.02 and the minimization routine minuit, we derive elemental abundances for the ejecta. We find the following abundances, relative to solar material: He=1.3, C=2.5, N=132, O=14, Ne=247, Mg=7.9, Al=60 and Si=22. These results are based on independent fits to three different dates of observation, spanning six months. We find a high N/O ratio which is indicative of an outburst on a massive white dwarf.

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