ELEMENTAL ABUNDANCES FOR NOVA V693-CORONAE-AUSTRINAE-1981

We present an analysis of the UV spectra of the fast ONeMg nova V693 C oronae Austrinae 1981. Observations with IUE began on 1981 April 10 an d continued until 1981 November 14. We find the reddening for the nova to be E (B - V)similar or equal to 0.2+/-0.1. Using the photoionizati on code CLOUDY 90.02 and the minimization routine MINUIT, we derive el emental abundances for the ejecta. We find the following abundances, r elative 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.