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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., Drew, J. E., Gaensicke, B. T., Greimel, R., Groot, P. J., Roelofs, Gijs H. A., Steeghs, D. and Woudt, P. A.. (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

ISSN:

0035-8711

Official Date:

11 December 2007

Dates:

Date	Event
11 December 2007	Published

Volume:

Vol.382

Number:

No.3

Number of Pages:

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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