SWIFT J1753.5-0127 : a surprising optical/X-ray cross-correlation function
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 2041-8205Full text not available from this repository.
Official URL: http://iopscience.iop.org/1538-4357/682/1/L45/
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|
|Date:||20 July 2008|
|Number of Pages:||4|
|Access rights to Published version:||Open Access|
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