Multiwaveband studies of Be/X-ray binaries
Multiwaveband studies of Be/X-ray binaries
Studies of three BeXRBs: A0535+262, AX J0051-733 and XTE J0111.2-7317 are presented. 15 years of spectroscopy and photometry of A0535+262 is analysed to reveal the global behaviour of a typical BeXRB in detail. The detection of the recently predicted varying resonant truncation, the simultaneity of truncation events with X-ray activity, and the governing rôle of a 1400 day cycle, probably a manifestation of precession of the circumstellar disc, are described. AX J0051-733, a recent SMC discovery, exhibits a coherent 0.7/1.4day photometric modulation, the period of which appears to be decreasing. Various possible explanations, none of them fully satisfactory, are discussed. XTE J0111.2-7317, also an SMC system, is embedded in a compact emission nebula. The nature of this nebula is examined and found to be an HII region ionised by the BeXRB.
University of Southampton
Haigh, Nicholas Jonathan
2d0a77ec-a77e-4974-9b17-5e41833a3259
2002
Haigh, Nicholas Jonathan
2d0a77ec-a77e-4974-9b17-5e41833a3259
Haigh, Nicholas Jonathan
(2002)
Multiwaveband studies of Be/X-ray binaries.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
Studies of three BeXRBs: A0535+262, AX J0051-733 and XTE J0111.2-7317 are presented. 15 years of spectroscopy and photometry of A0535+262 is analysed to reveal the global behaviour of a typical BeXRB in detail. The detection of the recently predicted varying resonant truncation, the simultaneity of truncation events with X-ray activity, and the governing rôle of a 1400 day cycle, probably a manifestation of precession of the circumstellar disc, are described. AX J0051-733, a recent SMC discovery, exhibits a coherent 0.7/1.4day photometric modulation, the period of which appears to be decreasing. Various possible explanations, none of them fully satisfactory, are discussed. XTE J0111.2-7317, also an SMC system, is embedded in a compact emission nebula. The nature of this nebula is examined and found to be an HII region ionised by the BeXRB.
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Published date: 2002
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Local EPrints ID: 464763
URI: http://eprints.soton.ac.uk/id/eprint/464763
PURE UUID: bb949b55-05cd-40a6-a667-eecd725df373
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Date deposited: 05 Jul 2022 00:00
Last modified: 16 Mar 2024 19:44
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Author:
Nicholas Jonathan Haigh
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