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Swift J1753.5−0127 : the black hole candidate with the shortest orbital period
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Zurita, C., Durant, M., Torres, M. A. P., Shahbaz, T., Casares, J. and Steeghs, D. (2008) Swift J1753.5−0127 : the black hole candidate with the shortest orbital period. The Astrophysical Journal, Vol.681 (No.2). pp. 1458-1463. doi:10.1086/588721 ISSN 0004-637X.
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WRAP_Steeghs_Swift J1753.5-0127_0803.2524v1.pdf - Accepted Version Download (1214Kb) | Preview |
Official URL: http://dx.doi.org/10.1086/588721
Abstract
We present time-resolved photometry of the optical counterpart to the black hole candidate Swift J1753.5–0127 which has remained in the low/hard X-ray state and bright at optical/IR wavelengths since its discovery in 2005. At the time of our observations Swift J1753.5–0127 does not show a decay trend but remains stable at R = 16.45 with a night-to-night variability of ~0.05 mag. The R-band light curves, taken from 2007 June 3 to August 31, are not sinusoidal, but exhibit a complex morphology with remarkable changes in shape and amplitude. The best period determination is 3.2443 ± 0.0010 hr. This photometric period is likely a superhump period, slightly larger than the orbital period. Therefore, Swift J1753.5–0127 is the black hole candidate with the shortest orbital period observed to date. Our estimation of the distance is comparable to values previously published and likely places Swift J1753.5–0127 in the Galactic halo.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Black holes (Astronomy) | ||||
Journal or Publication Title: | The Astrophysical Journal | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 0004-637X | ||||
Official Date: | 2008 | ||||
Dates: |
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Volume: | Vol.681 | ||||
Number: | No.2 | ||||
Page Range: | pp. 1458-1463 | ||||
DOI: | 10.1086/588721 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 21 December 2015 | ||||
Date of first compliant Open Access: | 21 December 2015 | ||||
Funder: | Spain. Ministerio de Ciencia e Innovación (MICINN), Chandra X-ray Observatory (U.S.), Spain. Ministerio de Educación y Ciencia (MEC) | ||||
Grant number: | GO5-6029X (Chandra), AYA2006-10254 (MEC), CSD2006-00070 (MEC) |
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