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The not-so-extreme white dwarf of the CV GD 552
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Unda-Sanzana, E., Marsh, T. R., Gänsicke, B. T. (Boris T.), Maxted, P. F. L., Morales-Rueda, L., Dhillon, V. S., Thoroughgood, T. D., Tremou, E., Watson, C. A. and Hinojosa-Goni, R.. (2009) The not-so-extreme white dwarf of the CV GD 552. Journal of Physics: Conference Series, Vol.172 (No.1). 012041. ISSN 1742-6596
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Official URL: http://dx.doi.org/10.1088/1742-6596/172/1/012041
Abstract
GD 552 is a cataclysmic binary which was previously believed to be composed of an M-star and a white dwarf, the latter having an extreme mass of 1.4 solar masses. In a recent paper we showed that this is not compatible with new observational evidence and presented an alternative model in which the white dwarf has a typical mass and the companion is a brown dwarf, making the system a likely member of the elusive group of CVs which have already evolved through minimum orbital period. Here we present additional spectroscopical evidence supporting this conclusion by means of skew mapping.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Faculty of Science > Physics |
| Library of Congress Subject Headings (LCSH): | White dwarf stars |
| Journal or Publication Title: | Journal of Physics: Conference Series |
| Publisher: | Institute of Physics Publishing Ltd. |
| ISSN: | 1742-6596 |
| Date: | July 2009 |
| Volume: | Vol.172 |
| Number: | No.1 |
| Page Range: | 012041 |
| Identification Number: | 10.1088/1742-6596/172/1/012041 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| Funder: | Chile. Comisión Nacional de Investigación Científica y Tecnológica (CONICYT), Fondo Nacional de Desarrollo Científico y Tecnológico (Chile) (FONDECYT), Universidad Católica del Norte (Antofagasta, Chile), Particle Physics and Astronomy Research Council (Great Britain) (PPARC), Nederlandse Organisatie voor Wetenschappelijk Onderzoek [Nederlands Organization for Scientific Research] (NWO) |
| Grant number: | 220401-10602015 (UCN), 639.042.201 (NWO) |
| Version or Related Resource: | Paper presented at: 16th European White Dwarfs Workshop, Barcelona, Spain, 30 June - 4 July 2008 |
| References: | Giclas H Burnham R and Thomas N 1970 Lowell Obs. Bull. 153 Greenstein J and Giclas H 1978 PASP 90 460 Hessman F Hopp U 1990 A&A 228 387 Horne K and Marsh T 1986 MNRAS 218 761 Marsh T R and Horne K 1988 MNRAS 235 269 Putte D Smith R Hawkins N and Martin J 2003 MNRAS 342 151 Smith M Dhillon V and Marsh T 1998 MNRAS 296 465 Unda-Sanzana E Marsh T R G¨ansicke B T Maxted P F L Morales-Rueda L Dhillon V S Thoroughgood T D Tremou E Watson C A and Hinojosa-Goni R 2008 MNRAS 388 889 Wilson R 1953 Carnegie Inst. Washington D.C. Publ. 601 |
| URI: | http://wrap.warwick.ac.uk/id/eprint/40194 |
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