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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3961
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dc.contributor.authorNaik, S.-
dc.contributor.authorDas, Mousumi-
dc.contributor.authorJain, Chetana-
dc.contributor.authorPaul, Biswajit-
dc.date.accessioned2011-01-20T09:19:19Z-
dc.date.available2011-01-20T09:19:19Z-
dc.date.issued2010-06-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2010, Vol.404, p2056en
dc.identifier.issn1365-2966 (Online)-
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/2289/3961-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractWe report a study of the X-ray emission from the nuclear region of the low-surface-brightness (LSB) galaxy UGC 6614. Very little is known about the central objects in LSB galaxies, especially their X-ray properties and X-ray spectra. In this study we have used XMM–Newton archival data to study the characteristics of the X-ray spectrum and the X-ray flux variability of the active galactic nucleus (AGN) in the LSB galaxy UGC 6614. The nucleus of UGC 6614 is very bright in X-ray emission with an absorption-corrected 0.2–10.0 keV luminosity of ∼1.1 × 1042 erg s−1. The X-ray spectrum is found to be power-law type with a moderate column density. A short time-scale of intensity variation and large X-ray flux are indicative of the presence of a black hole at the centre of this galaxy. Using the method of excess variance, we have determined the black hole mass to be ∼0.12 × 106 M⊙. The X-ray spectral properties are similar to that of the Seyfert I-type AGNs. Our study thus demonstrates that although LSB galaxies are poor in star formation, they may harbour AGNs with X-ray properties comparable to that seen in more luminous spiral galaxies.en
dc.language.isoenen
dc.publisherWiley-Blackwell for the RASen
dc.relation.urihttp://adsabs.harvard.edu/abs/2010MNRAS.404.2056Nen
dc.relation.urihttp://arxiv.org/abs/1001.5096en
dc.relation.urihttp://dx.doi.org/10.1111/j.1365-2966.2010.16423.xen
dc.rights2010 The authors & the Royal Astronomical Societyen
dc.subjectgalaxies: activeen
dc.subjectgalaxies: evolutionen
dc.subjectgalaxies: individualen
dc.subjectgalaxies: nuclei spiral X-raysen
dc.titleAn X-ray bright nucleus in the low-surface-brightness galaxy UGC 6614en
dc.typeArticleen
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