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A study of the new X-ray transient RXTE J2123-058 during its post-outburst state

Soria, R; Wu, K; Galloway, DK; (1999) A study of the new X-ray transient RXTE J2123-058 during its post-outburst state. Monthly Notices of the Royal Astronomical Society , 309 (2) 528 - 532. 10.1046/j.1365-8711.1999.02861.x. Green open access

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Abstract

We carried out I, R, V and B photometric observations of the neutron star X-ray binary RXTE J2123−058 shortly after the end of the X-ray outburst in mid-1998. We adopt the low-mass binary model to interpret our observations. After folding our data on the 0.24 821-d orbital period, and correcting for the steady brightness decline following the outburst, we observed sinusoidal oscillations with hints of ellipsoidal modulations which became progressively more evident. Our data also show that the decline in brightness was faster in the V band than in the R and I bands. This suggests both the cooling of an irradiation-heated secondary star and the fading of an accretion disc over the nights of our observations.

Type: Article
Title: A study of the new X-ray transient RXTE J2123-058 during its post-outburst state
Open access status: An open access version is available from UCL Discovery
DOI: 10.1046/j.1365-8711.1999.02861.x
Publisher version: http://dx.doi.org/10.1046/j.1365-8711.1999.02861.x
Language: English
Additional information: © 1999 RAS Definitive versions of articles pre-2013 are available at http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-2966, now published by http://mnras.oxfordjournals.org
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/36221
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