Bibcode
DOI
Durant, Martin; Gandhi, Poshak; Shahbaz, Tariq; Fabian, Andy P.; Miller, Jon; Dhillon, V. S.; Marsh, Tom R.
Bibliographical reference
The Astrophysical Journal, Volume 682, Issue 1, pp. L45-L48.
Advertised on:
7
2008
Journal
Citations
60
Refereed citations
49
Description
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.
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Montserrat
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