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Cataclysmic variables from the Catalina Real-time Transient Survey

Drake, A. J. and Gänsicke, B. T. and Djorgovski, S. G. and Wils, P. and Mahabal, A. A. and Graham, M. J. and Yang, T. -C. and Williams, R. and Catelan, M. and Prieto, J. L. and Donalek, C. and Larson, S. and Christensen, E. (2014) Cataclysmic variables from the Catalina Real-time Transient Survey. Monthly Notices of the Royal Astronomical Society, 441 (2). pp. 1186-1200. ISSN 0035-8711. doi:10.1093/mnras/stu639.

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We present 855 cataclysmic variable candidates detected by the Catalina Real-time Transient Survey (CRTS) of which at least 137 have been spectroscopically confirmed and 705 are new discoveries. The sources were identified from the analysis of five years of data, and come from an area covering three quarters of the sky. We study the amplitude distribution of the dwarf novae cataclysmic variables (CVs) discovered by CRTS during outburst, and find that in quiescence they are typically 2 mag fainter compared to the spectroscopic CV sample identified by the Sloan Digital Sky Survey. However, almost all CRTS CVs in the SDSS footprint have ugriz photometry. We analyse the spatial distribution of the CVs and find evidence that many of the systems lie at scale heights beyond those expected for a Galactic thin disc population. We compare the outburst rates of newly discovered CRTS CVs with the previously known CV population, and find no evidence for a difference between them. However, we find significant evidence for a systematic difference in orbital period distribution. We discuss the CVs found below the orbital period minimum and argue that many more are yet to be identified among the full CRTS CV sample. We cross-match the CVs with archival X-ray catalogues and find that most of the systems are dwarf novae rather than magnetic CVs.

Item Type:Article
Related URLs:
URLURL TypeDescription 10.1093/mnras/stu639DOIArticle Paper Information
Gänsicke, B. T.0000-0002-2761-3005
Djorgovski, S. G.0000-0002-0603-3087
Mahabal, A. A.0000-0003-2242-0244
Graham, M. J.0000-0002-3168-0139
Catelan, M.0000-0001-6003-8877
Prieto, J. L.0000-0003-0943-0026
Larson, S.0000-0002-0057-8211
Additional Information:© 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2014 April 1. Received 2014 March 31; in original form 2013 April 5. CRTS and CSDR1 are supported by the U.S. National Science Foundation under grants AST-0909182 and CNS-0540369. The work at Caltech was supported in part by the NASA Fermi grant 08-FERMI08-0025, and by the Ajax Foundation. The CSS survey is funded by the National Aeronautics and Space Administration under Grant No. NNG05GF22G issued through the Science Mission Directorate NEOs Observations Program. JLP acknowledges support from NASA through Hubble Fellowship Grant HF-51261.01-A awarded by the STScI, which is operated by AURA, Inc. for NASA, under contract NAS 5-26555. Support for MC and GT is provided by the Ministry for the Economy, Development, and Tourism’s Programa Iniciativa Científica Milenio through grant P07-021-F, awarded to The Milky Way Millennium Nucleus; by Proyecto Basal PFB-06/2007; and by Proyecto FONDECYT Regular 1110326. SDSS-III is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSSIII Collaboration Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the U.S. Department of Energy Office of Science. The SDSS-III web site is This research has made use of the International Variable Star Index (VSX) data base, operated at AAVSO, Cambridge, Massachusetts, USA. The Virtual Astronomical Observatory (VAO) is managed by the VAO, LLC, a non-profit company established as a partnership of the Associated Universities, Inc. and the Association of Universities for Research in Astronomy, Inc. The VAO is sponsored by the National Science Foundation and the National Aeronautics and Space Administration. The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement n. 320964 (WDTracer). BTG was supported in part by the UK’s Science and Technology Facilities Council (ST/I001719/1).
Funding AgencyGrant Number
Ajax FoundationUNSPECIFIED
Ministry for the Economy, Development, and Tourism Programa Iniciativa Científica MilenioP07-021-F
Proyecto BasalPFB-06/2007
Proyecto FONDECYT Regular1110326
European Research Council European Union Seventh Framework Programme (FP/2007-2013)320964
Science and Technology Facilities Council (STFC)ST/I001719/1
NASANAS 5-26555
Alfred P. Sloan FoundationUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Subject Keywords:stars: distances stars: dwarf novae novae, cataclysmic variables galaxies: stellar content
Issue or Number:2
Record Number:CaltechAUTHORS:20140627-085416936
Persistent URL:
Official Citation:Drake, A. J., Gänsicke, B. T., Djorgovski, S. G., Wils, P., Mahabal, A. A., Graham, M. J., . . . Christensen, E. (2014). Cataclysmic variables from the Catalina Real-time Transient Survey. Monthly Notices of the Royal Astronomical Society, 441(2), 1186-1200. doi: 10.1093/mnras/stu639
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46544
Deposited By: Jason Perez
Deposited On:27 Jun 2014 19:22
Last Modified:10 Nov 2021 17:27

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