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SWIFT J1753.5-0127 : a surprising optical/X-ray cross-correlation function
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Durant, M., Gandhi, P., Shahbaz, Tariq, Fabian, A. C., Miller, J., Dhillon, V. S. and Marsh, T. R. (2008) SWIFT J1753.5-0127 : a surprising optical/X-ray cross-correlation function. Astrophysical Journal Letters, Volume 682 (Number 1). L45-L48. doi:10.1086/590906 ISSN 2041-8205.
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Official URL: http://iopscience.iop.org/1538-4357/682/1/L45/
Abstract
We have conducted simultaneous optical and X-ray observations of SWIFT J1753.5-0127 with RXTE and ULTRACAM, while the system persisted in its relatively bright low/hard state. In the cross-correlation function, we find that the optical emission, with a broad negative peak, leads the X-ray emission by a few seconds and has a smaller positive peak at positive lags. This is markedly different from what was seen for the similarly interesting system XTE J1118+480, and it is the first time that such a correlation function has been so clearly measured. We suggest a physical scenario for its origin.
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): | Double stars -- Spectra, X-ray spectroscopy, Emission spectroscopy | ||||
Journal or Publication Title: | Astrophysical Journal Letters | ||||
Publisher: | IOP Publishing Ltd | ||||
ISSN: | 2041-8205 | ||||
Official Date: | 20 July 2008 | ||||
Dates: |
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Volume: | Volume 682 | ||||
Number: | Number 1 | ||||
Number of Pages: | 4 | ||||
Page Range: | L45-L48 | ||||
DOI: | 10.1086/590906 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Funder: | Spain. Ministerio de Ciencia e Innovación (MICINN), Nihon Gakujutsu Shinkōkai [Japan Society for the Promotion of Science] (NGS), Science and Technology Facilities Council (Great Britain) (STFC), Spain. Ministerio de Educación y Ciencia (MEC) | ||||
Grant number: | CSD2006-00070 (MEC) |
Data sourced from Thomson Reuters' Web of Knowledge
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