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Identification of Five Interacting Binaries in the Galactic Bulge Survey

Britt, C. T. and Torres, M. A. P. and Hynes, R. I. and Jonker, P. G. and Maccarone, T. J. and Greiss, S. and Steeghs, D. and Groot, P. and Knigge, C. and Dieball, A. and Nelemans, G. and Mikles, V. J. and Gossen, L. (2013) Identification of Five Interacting Binaries in the Galactic Bulge Survey. Astrophysical Journal, 769 (2). Art. No. 120. ISSN 0004-637X. doi:10.1088/0004-637X/769/2/120.

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We present optical light curves, spectroscopy, and classification of five X-ray sources in the Chandra Galactic Bulge Survey (CXOGBS J174009.1–284725 (CX5), CXOGBS J173935.7–272935 (CX18), CXOGBS J173946.9–271809 (CX28), CXOGBS J173729.1–292804 (CX37), CXOGBS J174607.6–261547 (CX561)). These objects were selected based on bright optical counterparts which were quickly found to have emission lines in their optical spectra. This paper presents an illustration of GBS optical follow-up, targeting emission line objects. Of these five objects, four exhibit photometric variability in the Sloan r' band. CX5 shows a tentative period of 2.1 hr and is clearly an intermediate polar (IP). CX28 and CX37 both exhibit flickering with no clear period. Both are also suggested to be IPs. CX18 was observed to undergo two dwarf nova outbursts. Finally, CX561 shows no detectable variability, although its characteristics would be consistent with either a quiescent low-mass X-ray binary or cataclysmic variable.

Item Type:Article
Related URLs:
URLURL TypeDescription
Jonker, P. G.0000-0001-5679-0695
Maccarone, T. J.0000-0003-0976-4755
Additional Information:© 2013 American Astronomical Society. Received 2012 October 23; accepted 2013 April 19; published 2013 May 14. This work was supported by the National Science Foundation under grant No. AST-0908789, by the Louisiana Board of Regents Fellowship, by the NAS/Louisiana Board of Regents grant NNX07AT62A/LEQSF(2007-2010) Phase 3-02. P.G.J. and M.A.P.T. acknowledge support from the Netherlands Organisation for Scientific Research, and the work of their student Oliwia Madj. This research has made use of NASA’s Astrophysics Data System Bibliographic Services and of SAOImage DS9, developed by Smithsonian Astrophysical Observatory. Facilities: CTIO:1.3m, Blanco, CXO, Swope, NTT, VLT:Melipal
Funding AgencyGrant Number
Louisiana Board of RegentsUNSPECIFIED
NAS/Louisiana Board of RegentsNNX07AT62A/LEQSF(2007-2010)
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)UNSPECIFIED
Subject Keywords: binaries: close; novae, cataclysmic variables; stars: dwarf novae; stars: emission-line, Be; surveys; X-rays: binaries
Issue or Number:2
Record Number:CaltechAUTHORS:20130718-153640722
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Official Citation:Identification of Five Interacting Binaries in the Galactic Bulge Survey C. T. Britt, M. A. P. Torres, R. I. Hynes, P. G. Jonker, T. J. Maccarone, S. Greiss, D. Steeghs, P. Groot, C. Knigge, A. Dieball, G. Nelemans, V. J. Mikles, and L. Gossen doi:10.1088/0004-637X/769/2/120
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39457
Deposited By: Ruth Sustaita
Deposited On:19 Jul 2013 14:28
Last Modified:09 Nov 2021 23:45

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