A composite light curve model of the symbiotic nova pu vul (1979)

M. Kato, J. Mikoiłajewska, I. Hachisu

研究成果: Article査読

1 被引用数 (Scopus)

抄録

PU Vul (1979) is a symbiotic nova that shows a long-lasting flat optical peak followed by a slow decline. We made a quasi-evolution model for outbursts on a 0.6 M white dwarf consisting of a series of static solutions with optically-thin winds. Our theoretical models reproduce well the observed visual/UV light curves as well as the new estimates of the temperature and radius of the hot component. We also modeled the light curve of the 1980 and 1994 eclipses as the total eclipse occulted by a pulsating M-giant companion star. In the second eclipse, the visual magnitude is dominated by nebular emission which is possibly ejected from the hot component between 1990 to 2000. We have quantitatively estimated three components of emission, i.e., the white dwarf, companion and nebular, and made a composite light curve that represents well the evolution of the PU Vul outburst.

本文言語English
ページ(範囲)157-164
ページ数8
ジャーナルBaltic Astronomy
21
1-2
DOI
出版ステータスPublished - 2012

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学

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