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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, T., Fabian, A. C., 1948-, Miller, Jon, Dhillon, V. S. and Marsh, T. R.. (2008) SWIFT J1753.5-0127 : a surprising optical/X-ray cross-correlation function. Astrophysical Journal Letters, Vol.682 (No.1). L45-L48. 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 |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Faculty of Science > Physics |
| Journal or Publication Title: | Astrophysical Journal Letters |
| Publisher: | IOP Publishing Ltd |
| ISSN: | 2041-8205 |
| Date: | 20 July 2008 |
| Volume: | Vol.682 |
| Number: | No.1 |
| Number of Pages: | 4 |
| Page Range: | L45-L48 |
| Identification Number: | 10.1086/590906 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Open Access |
| URI: | http://wrap.warwick.ac.uk/id/eprint/29688 |
Data sourced from Thomson Reuters' Web of Knowledge
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