EDP Sciences
Free access
Issue
A&A
Volume 399, Number 2, February IV 2003
Page(s) 695 - 697
Section Stellar atmospheres
DOI http://dx.doi.org/10.1051/0004-6361:20021808


A&A 399, 695-697 (2003)
DOI: 10.1051/0004-6361:20021808

CK Vul as a candidate eruptive stellar merging event

T. Kato

Department of Astronomy, Kyoto University, Kyoto 606-8502, Japan
(Received 25 October 2002 / Accepted 3 December 2002 )

Abstract
CK Vul (Nova Vul 1670) is one of the most mysterious objects among erupting stellar objects. Past studies have suggested that CK Vul is a final helium-flash object resembling V605 Aql and V4334 Sgr (Sakurai's object). The peculiar outburst light curve of CK Vul, however, had no similar counterpart among the known eruptive objects. Furthermore, the presence of hydrogen in the proposed remnant seems to contradict with the final helium-flash scenario. We propose that the peculiarities of CK Vul can be naturally understood if we consider a merging of main-sequence stars, following a new interpretation by Soker & Tylenda (2003) which was proposed to explain the peculiar eruptive object V838 Mon. In this case, the 1670 outburst of CK Vul may be best understood as a V838 Mon-like event which occurred in our vicinity.


Key words: accretion, accretion disks -- stars -- novae, cataclysmic variables -- stars: individual: CK Vul

SIMBAD Objects



© ESO 2003