V445 Puppis, a first identified helium nova

Mariko Kato, Izumi Hachisu

Research output: Contribution to journalConference articlepeer-review


The 2001 outburst of V445 Puppis is an unique object, that shows absence of hydrogen, enrichment of helium and carbon, slow decay of the light curve with a small amplitude. We have calculated theoretical light curves of helium novae to confirm that V445 Pup is the first example of helium nova. From the light curve fitting we conclude that the white dwarf is very massive ≳ 1:33M⊙.

Original languageEnglish
Pages (from-to)196-198
Number of pages3
JournalRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
Publication statusPublished - 2004
EventIAU Colloquium 194 - Compact Binaries in the Galaxy and Beyond - La Paz, B.C. Sur, Mexico
Duration: 2003 Nov 172003 Nov 22


  • Cataclismic nariables
  • Novae
  • Stars: Individual (V445 Puppis)
  • Stars: Mass loss
  • White dwarf

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics


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