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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7657
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dc.contributor.authorTomar, Gunjan-
dc.contributor.authorPradhan, Pragati-
dc.contributor.authorPaul, Biswajit-
dc.date.accessioned2021-02-03T08:49:45Z-
dc.date.available2021-02-03T08:49:45Z-
dc.date.issued2021-01-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2021, Vol.500, p 3454–3461en_US
dc.identifier.issn0035-8711-
dc.identifier.issn1365-2966 - (online)-
dc.identifier.urihttp://hdl.handle.net/2289/7657-
dc.descriptionOpen Access.en_US
dc.description.abstractWe report results from the analysis of data from two observations of the accreting binary X-ray pulsar Cen X-3 carried out with the broad-band X-ray observatories Suzaku and NuSTAR. The pulse profile is dominated by a broad single peak and show some energy dependence with two additional weak pulse peaks at energies below 15 and 25 keV, respectively. The broad-band X-ray spectrum for 0.8–60.0 keV for Suzaku and 3.0–60.0 keV for NuSTAR is fitted well with high-energy cut-off power-law model along with soft-excess, multiple iron emission lines and a cyclotron absorption. The cyclotron line energy is found to be 30.29+0.68 −0.61 and 29.22+0.28 −0.27 keV, respectively, in the Suzaku and NuSTAR spectra. We make a comparison of these two measurements with four previous measurements of Cyclotron Resonant Scattering Feature (CRSF) in Cen X-3 obtained with Ginga, BeppoSAX, and RXTE. We find no evidence for a dependence of the CRSF on uminosity. Except for one CRSF measurement with BeppoSAX , the remaining measurements are consistent with a CRSF energy in the range of 29.5–30.0 keV over a luminosity range of 1.1–5.4 × 1037 erg s−1 different from several other sources that show considerable CRSF variation in the same luminosity range.en_US
dc.language.isoenen_US
dc.publisherOxford University Press on behalf of the Royal Astronomical Societyen_US
dc.relation.urihttps://academic.oup.com/mnras/article/500/3/3454/5974294en_US
dc.relation.urihttps://arxiv.org/abs/2011.05534en_US
dc.rights2021 The Author(s)en_US
dc.subjectstarsen_US
dc.subjectneutron – pulsarsen_US
dc.subjectgeneral –X-raysen_US
dc.subjectbinaries – X-raysen_US
dc.subjectindividualen_US
dc.subjectCen X-3en_US
dc.titleNew measurements of the cyclotron line energy in Cen X-3en_US
dc.typeArticleen_US
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