The nova PW Vulpecula - The spectrum and UBV magnitudes in 1986

Details The nova PW Vulpecula - The spectrum and UBV magnitudes in 1986 The nova PW Vulpecula - The spectrum and UBV magnitudes in 1986

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pazh...13..886k&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 13, Oct. 1987, p. 886-890. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

1

Novae, Spectral Energy Distribution, Stellar Spectrophotometry, Stellar Structure, Ubv Spectra, Stellar Color, Stellar Evolution, Stellar Luminosity

Scientific paper

The results of spectral and UBV-observations of PW Vul (nova Vulpeculae 1984 No. 1) carried out in August-September 1986 are presented. During the observations the star brightness was by ΔV ≈ 8m.2 below maximum and the nova was at the nebular stage, as its spectral characteristics confirmed (the brightest emission lines were [O III] an [N II]). The PW Vul track on the two-colour diagram (U-B)-(B-V) from the premaximal to the nebular stage is considered. It is possible that the shell thrown out by the nova had inhomogeneous structure like "the equatorial ring + two polar caps". The authors suggest that the cause of the IR-radiation excess is the primordial dust heated by nova burst.

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