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The evolution of Nova V382 Velorum 1999

Della Valle, M. and Pasquini, L. and Daou, D. and Williams, R. E. (2002) The evolution of Nova V382 Velorum 1999. Astronomy & Astrophysics, 390 (1). pp. 155-166. ISSN 0004-6361.

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We report results of spectroscopic observations of V382 Vel (Nova Vel 1999) carried out at La Silla between 5 and 498 days after maximum light (23 May 1999, V(max) ~ 2.3 ± 0.1). The analysis of the photometric and spectroscopic evolution shows this object to be a fast nova belonging to the Fe II broad spectroscopic class. A distance of 1.7 kpc (±20%) is derived from the maximum magnitude vs. rate of decline relationship after correcting for the small reddening toward the nova, E(B.V) ≾ 0.10. From the measured Hα flux and the associated rate of expansion we derive an approximate mass for the ejected shell, M_(env) ≾ 10^(-5) M_⊙. We have also observed during the early decline a broad, short-lived (≾2 weeks) feature at 6705–6715 Å for which several identifications are possible, one of which is the lithium doublet at 6708 Å and which could place an empirical limit on the lithium production that might occur during the outburst of a fast nova. The high luminosity at maximum, M_v = -8.9, and the relatively small height above the galactic plane (z ≾ 160 pc) suggest that V382 Vel originated from a massive white dwarf, likely in the mass range 1.1–1.2 M_⊙.

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Della Valle, M.0000-0003-3142-5020
Additional Information:© 2002 ESO. Received: 25 February 2002. Accepted: 22 April 2002. The authors are deeply grateful to the La Silla staff for having promptly activated the service-mode and providing the spectroscopic follow-up of the nova. MDV thanks Space Telescope Science Institute, where part of this work was done, for its hospitality. The authors are also indebted with F, Matteucci, H. Duerbeck, S. Starrfield, P. Kilmartin and A. Gilmore for helpful discussions and with an anonymous referee for his remarks, which have improved the presentation of this paper.
Group:Infrared Processing and Analysis Center (IPAC)
Subject Keywords:stars: novae, cataclysmic variables
Issue or Number:1
Record Number:CaltechAUTHORS:20180228-080326681
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Official Citation:The evolution of Nova V382 Velorum 1999 M. Della Valle, L. Pasquini, D. Daou and R. E. Williams A&A, 390 1 (2002) 155-166 DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84984
Deposited By: Ruth Sustaita
Deposited On:28 Feb 2018 20:18
Last Modified:03 Oct 2019 19:25

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