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Multiband echo tomography of Sco X-1
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Muñoz-Darias, T., Martínez-Paris, I. G., Casares, J., Marsh, T. R., Cornelisse, R., Steeghs, D., Dhillon, V. S. and Charles, P. A. (2006) Multiband echo tomography of Sco X-1. Advances in space research, No.38 (Vol.12). pp. 2762-2764. doi:10.1016/j.asr.2005.10.056 ISSN 0273-1177.
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Official URL: http://dx.doi.org/10.1016/j.asr.2005.10.056
Abstract
We present preliminary results of a simultaneous X-ray/optical campaign of the prototypical LMXB Sco X-1 at 1-10 Hz time resolution. Lightcurves of the high excitation Bowen/Hell emission lines and a red continuum at lambda(c) similar to 6000 angstrom were obtained through narrow interference filters with ULTRACAM, and these were cross-correlated with simultaneous RXTE X-ray lightcurves. We find evidence for correlated variability, in particular when Sco X-1 enters the Flaring branch. The Bowen/Hell lightcurves lag the X-ray lightcurves with a light travel time which is consistent with reprocessing in the companion star while the continuum lightcurves have shorter delays consistent with reprocessing in the accretion disc.
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 | ||||
Journal or Publication Title: | Advances in space research | ||||
Publisher: | Elsevier Science BV | ||||
ISSN: | 0273-1177 | ||||
Official Date: | 2006 | ||||
Dates: |
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Volume: | No.38 | ||||
Number: | Vol.12 | ||||
Number of Pages: | 3 | ||||
Page Range: | pp. 2762-2764 | ||||
DOI: | 10.1016/j.asr.2005.10.056 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 15 December 2015 | ||||
Date of first compliant Open Access: | 15 December 2015 |
Data sourced from Thomson Reuters' Web of Knowledge
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