Elemental abundances for Nova LMC 1990#1

We present our analysis of the UV spectra of the fast ONeMg Nova LMC 1990#1 , Observations with the IUE began on 1990 January 18 and continued through to 1990 March 15, We have analysed these spectra; and determined line fluxe s and physical parameters as a function of time, Using both He II lines and the Balmer decrement, we find the reddening for the nova to be E(B - V) si milar or equal to 0.22, Using the photoionization code CLOUDY 90.03b and th e minimization routine MINUIT, We derive elemental abundances for the eject a, We find the following abundances, relative to solar material: He = 1, C = 8, N = 109, O = 20, Ne = 62, Mg = 16, Al = 257 and Si = 41. These results are based on independent fits to different data sets acquired three weeks apart. These abundances are extremely similar to those found for V693 Coron a Austrinae 1981, Given the position of V693 CrA in the Galaxy and the rang e of distances found for it, the similar abundances imply that the V693 CrA outburst took place on an older population white dwarf. The high N/O ratio implies an outburst on a massive white dwarf.