Bhattacharyya, Sudip and Bhattacharya, Dipankar and Thampan, Arun V (2001) General relativistic spectra of accretion discs around rapidly rotating neutron stars: effect of light bending. In: Monthly Notices of the Royal Astronomical Society, 325 (3). pp. 989-994.
We present computed spectra, as seen by a distant observer, from the accretion disc around a rapidly rotating neutron star. Our calculations are carried out in a fully general relativistic framework, with an exact treatment of rotation. We take into account the Doppler shift, gravitational redshift and light-bending effects in order to compute the observed spectrum. We find that light bending significantly modifies the high-energy part of the spectrum. Computed spectra for slowly rotating neutron stars are also presented. These results would be important for modelling the observed X-ray spectra of low- mass X-ray binaries containing fast-spinning neutron stars.
|Item Type:||Journal Article|
|Additional Information:||The copyright of this article belongs to Blackwell Publishing.|
|Keywords:||accretion;accretion discs;relativity stars;neutron stars;rotation X-rays;binaries|
|Department/Centre:||Division of Physical & Mathematical Sciences > Joint Astronomy Programme|
|Date Deposited:||21 Sep 2004|
|Last Modified:||19 Sep 2010 04:16|
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