The 1990 outburst of the recurrent nova V3890 SGR observed with IUE

Details The 1990 outburst of the recurrent nova V3890 SGR observed with IUE The 1990 outburst of the recurrent nova V3890 SGR observed with IUE

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...265...71g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 265, no. 1, p. 71-76.

Astronomy and Astrophysics

Astrophysics

12

Novae, Stellar Radiation, Variable Stars, Companion Stars, M Stars, Stellar Spectra

Scientific paper

V3890 Sgr (Nova Sgr 1962) is one of the more recent examples of recurrent novae. Its second recorded outburst took place in April 1990. IUE observations were obtained during the first month after the outburst. The UV spectra show the development of very broad emission lines with complex and variable profiles. Of particular interest in the 'narrow core+broad wings' structure shown by most of the emission lines, and the presence of very high ionization lines. The estimation of the reddening and the distance allows us to conclude that the system most probably reached a super-Eddington luminosity in the early phases of the outburst. This is a strong argument in favor of the thermonuclear origin of the outburst.

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