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The Polar Catalysmic Variable 1RXS J173006.4+033813

Bhalerao, Varun B. and van Kerkwijk, Marten H. and Harrison, Fiona A. and Kasliwal, Mansi M. and Kulkarni, S. R. and Rana, Vikram R. (2010) The Polar Catalysmic Variable 1RXS J173006.4+033813. Astrophysical Journal, 721 (1). pp. 412-423. ISSN 0004-637X. doi:10.1088/0004-637X/721/1/412.

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We report the discovery of 1RXS J173006.4+033813, a polar cataclysmic variable with a period of 120.21 minutes. The white dwarf primary has a magnetic field of B = 42^(+6)_(-5) MG and the secondary is an M3 dwarf. The system shows highly symmetric double-peaked photometric modulation in the active state as well as in quiescence. These arise from a combination of cyclotron beaming and ellipsoidal modulation. The projected orbital velocity of the secondary is K_2 = 390 ± 4 km s^(–1). We place an upper limit of 830 ± 65 pc on the distance.

Item Type:Article
Related URLs:
URLURL TypeDescription
Bhalerao, Varun B.0000-0002-6112-7609
Harrison, Fiona A.0000-0003-2992-8024
Kasliwal, Mansi M.0000-0002-5619-4938
Kulkarni, S. R.0000-0001-5390-8563
Rana, Vikram R.0000-0003-1703-8796
Additional Information:© 2010 The American Astronomical Society. Received 2010 January 27; accepted 2010 July 27; published 2010 August 27. We sincerely thank the anonymous referee for detailed comments on the paper. We thank N. Gehrels for approving the Target of Opportunity observation with Swift and the Swift team for executing the observation. We also thank V. Anupama, L. Bildsten, T. Marsh, G. Nelemans, E. Ofek, and P. Szkody for useful discussions while writing the paper. This research has benefitted from the M, L, and T dwarf compendium housed at and maintained by Chris Gelino, Davy Kirkpatrick, and Adam Burgasser. Some of the data presented herein were obtained at the W.M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W.M. Keck Foundation. Facilities: PO:1.5m, Hale (LFC, DBSP), Keck:I (LRIS), Keck:II (NIRSPEC), Swift
Group:Space Radiation Laboratory
Funding AgencyGrant Number
W. M. Keck FoundationUNSPECIFIED
Subject Keywords:binaries: close – binaries: spectroscopic – novae, cataclysmic variables – stars: individual (1RXS J173006.4+033813) – stars: variables: general
Issue or Number:1
Classification Code:PACS: 97.30.Qt; 95.85.Kr; 97.20.Jg; 97.10.Ld; 97.10.Kc; 97.20.Rp
Record Number:CaltechAUTHORS:20101022-080746699
Persistent URL:
Official Citation:Varun B. Bhalerao et al 2010 ApJ 721 412. doi: 10.1088/0004-637X/721/1/412
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20473
Deposited By: Tony Diaz
Deposited On:12 Nov 2010 00:14
Last Modified:09 Nov 2021 00:00

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