A light-curve model of the symbiotic nova PU Vul (1979): A very quiet explosion with long-lasting flat peak

Mariko Kato, Izumi Hachisu, Angelo Cassatella, Rosario González-Riestra

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We present a light-curve model of the symbiotic nova PU Vul (Nova Vulpeculae 1979) that shows a long-lasting flat peak with no spectral indication of wind mass loss before decline. Our quasi-evolution models consisting of a series of static solutions explain both the optical flat peak and ultraviolet (UV) light curve simultaneously. The white dwarf mass is estimated to be ∼0.6 M. We also provide a new determination of the reddening, E(B - V) = 0.43 ±0.05, from UV spectral analysis. Theoretical light-curve fitting of UV 1455 Å provides the distance of d = 3.8 ± 0.7 kpc.

Original languageEnglish
JournalAstrophysical Journal
Volume727
Issue number2
DOIs
Publication statusPublished - 2011 Feb 1

Fingerprint

light curve
explosions
explosion
curve fitting
ultraviolet radiation
spectral analysis
spectrum analysis
indication
loss

Keywords

  • Binaries: symbiotic
  • Novae, cataclysmic variables
  • Stars: individual (PU Vul)
  • Ultraviolet: stars
  • White dwarfs

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

A light-curve model of the symbiotic nova PU Vul (1979) : A very quiet explosion with long-lasting flat peak. / Kato, Mariko; Hachisu, Izumi; Cassatella, Angelo; González-Riestra, Rosario.

In: Astrophysical Journal, Vol. 727, No. 2, 01.02.2011.

Research output: Contribution to journalArticle

Kato, Mariko ; Hachisu, Izumi ; Cassatella, Angelo ; González-Riestra, Rosario. / A light-curve model of the symbiotic nova PU Vul (1979) : A very quiet explosion with long-lasting flat peak. In: Astrophysical Journal. 2011 ; Vol. 727, No. 2.
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