The spectrum of the symbiotic nova AS 296 (= FG Serpentis) from 1988 July to 1992 March

Details The spectrum of the symbiotic nova AS 296 (= FG Serpentis) from 1988 July to 1992 March The spectrum of the symbiotic nova AS 296 (= FG Serpentis) from 1988 July to 1992 March

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasp..105..859w&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 105, no. 690, p. 859-862.

Astronomy and Astrophysics

Astronomy

4

Novae, Stellar Spectra, Symbiotic Stars, Absorption Spectra, Emission Spectra, Interstellar Extinction, Radial Velocity, Stellar Envelopes

Scientific paper

Within about a month after its 1988 outburst, AS 296 showed a strong continuum, emission lines of singly ionized metals, and deep absorption lines also of the ionized metals. The emission lines indicate an expansion velocity of only about 50 km/s. The absorption lines are those of a high-density shell as indicated by the presence of Mg II, 448 I A, and the absence of Sr II, 4215A. In 1991 and 1992, low-to-medium excitation forbidden emission lines had appeared. An analysis of the diffuse interstellar bands in absorption indicates a reddening of 0.35 +/- 0.05 mag, which is considerably less than assumed by Munari et al. (1992).

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