Spectroscopic analysis of tremendous--outburst--nova candidates

Details Spectroscopic analysis of tremendous--outburst--nova candidates Spectroscopic analysis of tremendous--outburst--nova candidates

2004-11-08

arxiv.org/abs/astro-ph/0411198v1

Astronomy and Astrophysics

Astrophysics

7 pages, 6 figures, to be published in A&A

Scientific paper

10.1051/0004-6361:20041371

In the course of a long-term project investigating classical novae with large outburst amplitudes, we have performed optical spectroscopy of several old-nova candidates. We here present the spectra of the candidates V630 Sgr, XX Tau, CQ Vel, V842 Cen, and V529 Ori, that hitherto lacked such classification. While the first four show typical spectra for cataclysmic variables, and can thus be identified as such, V529 Ori is probably misclassified. Of special interest are the two systems XX Tau and V842 Cen, which show all signs for being low mass transfer systems. As such they can be used to judge the evolution scenarios for novae. In particular, given the rather young age of their outburst, it appears more likely that these systems are not on their way into hibernation, (i.e., cutting off mass transfer for a longer period of time), but are simply settling down towards their original configuration of comparatively low, but steady, mass transfer, such as for dwarf novae.

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