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International Astronomical Union Colloquium (1)

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V445 Puppis, A First Identified Helium Nova
Mariko Kato, Izumi Hachisu
Journal:

International Astronomical Union Colloquium / Volume 194 / 2004

Published online by Cambridge University Press:

22 February 2018, pp. 196-198

Print publication:

2004
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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⊙.