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Newly discovered cataclysmic variables from the INT/WFC photometric Hα survey of the northern Galactic plane

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Witham, Andrew, Knigge, Christian, Aungwerojwit, A. (Amornrat), Drew, J. E., Gänsicke, B. T. (Boris T.), Greimel, R., Groot, P. J. (Paul J.), Roelofs, Gijs H. A., Steeghs, D. (Danny), 1972- and Woudt, P. A. (Patrick A.), 1970-. (2007) Newly discovered cataclysmic variables from the INT/WFC photometric Hα survey of the northern Galactic plane. Monthly Notices of the Royal Astronomical Society, Vol.382 (No.3). pp. 1158-1168. ISSN 0035-8711

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Official URL: http://dx.doi.org/10.1111/j.1365-2966.2007.12426.x

Abstract

We report the discovery of 11 new cataclysmic variable (CV) candidates by the Isaac Newton Telescope (INT) Photometric H alpha Survey of the northern Galactic plane (IPHAS). Three of the systems have been the subject of further follow-up observations. For the CV candidates IPHAS J013031.90+622132.4 and J051814.34+294113.2, time-resolved optical spectroscopy has been obtained and radial-velocity measurements of the H alpha emission line have been used to estimate their orbital periods. A third CV candidate (IPHAS J062746.41+014811.3) was observed photometrically and found to be eclipsing. All three systems have orbital periods above the CV period gap of 2-3 h. We also highlight an other system, IPHAS J025827.88+635234.9, whose spectrum distinguishes it as a likely high-luminosity object with unusual C and N abundances.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Cataclysmic variable stars
Journal or Publication Title:	Monthly Notices of the Royal Astronomical Society
Publisher:	Wiley-Blackwell Publishing, Inc
ISSN:	0035-8711
Date:	11 December 2007
Volume:	Vol.382
Number:	No.3
Number of Pages:	11
Page Range:	pp. 1158-1168
Identification Number:	10.1111/j.1365-2966.2007.12426.x
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Particle Physics and Astronomy Research Council (Great Britain) (PPARC), Thailand, Smithsonian Astrophysical Observatory, Science and Technology Facilities Council (Great Britain) (STFC)
Related URLs:	http://arxiv.org/abs/0710.5163
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URI:	http://wrap.warwick.ac.uk/id/eprint/31088