The Library

The orbital period of V458 Vulpeculae, a post-double common-envelope nova

Tools

Rodríguez-Gil, P., Santander-Garcia, M., Knigge, Christian, Corradi, R. L. M. (Romano L. M.), Gänsicke, B. T. (Boris T.), Barlow, Michael J., Drake, Jeremy J., Drew, J. E., Miszalski, B., Napiwotzki, Ralf, Steeghs, D. (Danny), 1972-, Wesson, R., Zijlstra, A. A., Jones, D. (David), Liimets, T., Muñoz-Darias, T., Pyrzas, S. and Rubio-Díez, M. M.. (2010) The orbital period of V458 Vulpeculae, a post-double common-envelope nova. Monthly Notices of the Royal Astronomical Society: Letters, Vol.407 (No.1). L21-L25. ISSN 1745-3925

Preview

Text
WRAP_Steeghs_orbital_period_1006.1075v1.pdf - Accepted Version
Download (439Kb) | Preview

Official URL: http://dx.doi.org/10.1111/j.1745-3933.2010.00895.x

Abstract

We present time-resolved optical spectroscopy of V458 Vulpeculae (Nova Vul 2007 No. 1) spread over a period of 15 months starting 301 d after its discovery. Our data reveal radial-velocity variations in the He iiλ5412 and He iiλ4686 emission lines. A period analysis of the radial-velocity curves resulted in a period of 98.096 47 ± 0.000 25 min (0.068 122 55 ± 0.000 000 17 d) which we identify with the orbital period of the binary system. V458 Vul is therefore the planetary nebula central binary star with the shortest period known. We explore the possibility of the system being composed of a relatively massive white dwarf (M1≳ 1.0 M⊙) accreting matter from a post-asymptotic giant branch star which produced the planetary nebula observed. In this scenario, the central binary system therefore underwent two common-envelope episodes. A combination of previous photoionization modelling of the nebular spectra, post-asymptotic giant branch evolutionary tracks and the orbital period favour a mass of M2∼ 0.6 M⊙ for the donor star. Therefore, the total mass of the system may exceed the Chandrasekhar mass, which makes V458 Vul a Type Ia supernova progenitor candidate.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Accretion (Astrophysics), Double stars, Stars, New, Cataclysmic variable stars
Journal or Publication Title:	Monthly Notices of the Royal Astronomical Society: Letters
Publisher:	Wiley-Blackwell Publishing Ltd.
ISSN:	1745-3925
Date:	September 2010
Volume:	Vol.407
Number:	No.1
Page Range:	L21-L25
Identification Number:	10.1111/j.1745-3933.2010.00895.x
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Science and Technology Facilities Council (Great Britain) (STFC)
References:	Bl¨ocker T., 1995, A&A, 299, 755 de Marco O., 2009, PASP, 121, 316 Ergma E., Fedorova A. V., Yungelson L. R., 2001, A&A, 376, L9 Faulkner J., 1971, ApJ, 170, L99 Geier S., Nesslinger S., Heber U., Przybilla N., Napiwotzki R., Kudritzki R., 2007, A&A, 464, 299 Goranskij V. P., Metlova N. V., Barsukova E. A., Burenkov A. N., Soloviev V. Y., 2008, The Astronomer’s Telegram, 1631, 1 Horne K., 1986, PASP, 98, 609 Maxted P. F. L., Marsh T. R., Moran C. K. J., Han Z., 2000, MNRAS, 314, 334 Nakano S., Kadota K., Waagen E., Swierczynski S., Komorous M., King R., Bortle J., 2007, IAU Circ., 8861, 2 Paczy´nski B., Sienkiewicz R., 1981, ApJ, 248, L27 Prialnik D., Kovetz A., 1995, ApJ, 445, 789 Rappaport S., Joss P. C., Verbunt F., 1983, ApJ, 275, 713 Rebassa-Mansergas A., G¨ansicke B. T., Schreiber M. R., Southworth J., Schwope A. D., Nebot Gomez-Moran A., Aungwerojwit A., Rodr´ıguez-Gil P., et al. 2008, MNRAS, 390, 1635 Ritter H., Kolb U., 2003, A&A, 404, 301 Schwarzenberg-Czerny A., 1996, ApJ, 460, L107 Steeghs D., Casares J., 2002, ApJ, 568, 273 Tovmassian G., Yungelson L., Rauch T., Suleimanov V., Napiwotzki R., Stasi´nska G., Tomsick J., Wilms J., Morisset C., Pe˜na M., Richer M. G., 2010, ApJ, 714, 178 Vassiliadis E., Wood P. R., 1994, ApJS, 92, 125 Verbunt F., Zwaan C., 1981, A&A, 100, L7 Wesson R., Barlow M. J., Corradi R. L. M., Drew J. E., Groot P. J., Knigge C., Steeghs D., Gaensicke B. T., et al. 2008, ApJ, 688, L21 Woudt P. A., Steeghs D., Karovska M., Warner B., Groot P. J., Nelemans G., Roelofs G. H. A., Marsh T. R., Nagayama T., Smits D. P., O’Brien T., 2009, ApJ, 706, 738 Yaron O., Prialnik D., Shara M. M., Kovetz A., 2005, ApJ, 623, 398
URI:	http://wrap.warwick.ac.uk/id/eprint/39754