Issue |
A&A
Volume 390, Number 1, July IV 2002
|
|
---|---|---|
Page(s) | 155 - 166 | |
Section | Interstellar and circumstellar matter | |
DOI | https://doi.org/10.1051/0004-6361:20020611 | |
Published online | 05 July 2002 |
The evolution of Nova V382 Velorum 1999
1
Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, Firenze, Italy e-mail: massimo@arcetri.astro.it
2
European Southern Observatory; KarlSwarschildstrasse 2, Garching bei München, München, Germany e-mail: lpasquin@eso.org
3
California Institute of Technology MS: 220-6 1200 East California Blvd., Pasadena, CA 91125, USA e-mail: daou@ipac.caltech.edu
4
Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, Firenze, Italy e-mail: massimo@arcetri.astro.it
5
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, USA e-mail: wms@stsci.edu
Corresponding author: M. Della Valle, massimo@arcetri.astro.it
Received:
25
February
2002
Accepted:
22
April
2002
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) ). 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 (
) is derived
from the maximum magnitude vs. rate of decline relationship after
correcting for the small reddening toward the nova,
-
. From the measured Hα flux and the associated rate of
expansion we derive an approximate mass for the ejected shell,
. 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,
, and the relatively small
height above the galactic plane (
pc) suggest that V382
Vel originated from a massive white dwarf, likely in the mass range
1.1–1.2
.
Key words: stars: novae, cataclysmic variables
© ESO, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.