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dc.contributor.authorWalton, D. J.
dc.contributor.authorMackenzie, A. D. A.
dc.contributor.authorGully, H.
dc.contributor.authorPatel, N. R.
dc.contributor.authorRoberts, T. P.
dc.contributor.authorEarnshaw, H. P.
dc.contributor.authorMateos, S.
dc.date.accessioned2021-12-13T15:45:02Z
dc.date.available2021-12-13T15:45:02Z
dc.date.issued2022-01-01
dc.identifier.citationWalton , D J , Mackenzie , A D A , Gully , H , Patel , N R , Roberts , T P , Earnshaw , H P & Mateos , S 2022 , ' A Multi-Mission Catalogue of Ultraluminous X-ray Source Candidates ' , Monthly Notices of the Royal Astronomical Society , vol. 509 , no. 2 , pp. 1587–1604 . https://doi.org/10.1093/mnras/stab3001
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 26456165
dc.identifier.otherPURE UUID: 492ae9d7-768a-4e4b-aeb2-0f8842e98520
dc.identifier.otherArXiv: http://arxiv.org/abs/2110.07625v1
dc.identifier.otherScopus: 85121242661
dc.identifier.urihttp://hdl.handle.net/2299/25255
dc.description© 2021 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. This article has been accepted for publication in the Monthly Notices of the Royal Astronomical Society, which has been published in final form at https://doi.org/10.1093/mnras/stab3001.
dc.description.abstractWe present a new, multi-mission catalogue of ultraluminous X-ray source (ULX) candidates, based on recent data releases from each of the XMM-Newton, Swift and Chandra observatories (the 4XMM-DR10, 2SXPS and CSC2 catalogues, respectively). This has been compiled by cross-correlating each of these X-ray archives with a large sample of galaxies primarily drawn from the HyperLEDA archive. Significant efforts have been made to clean the sample of known non-ULX contaminants (e.g. foreground stars, background AGN, supernovae), and also to identify ULX candidates that are common to the different X-ray catalogues utilized, allowing us to produce a combined 'master' list of unique sources. Our sample contains 1843 ULX candidates associated with 951 different host galaxies, making it the largest ULX catalogue compiled to date. Of these, 689 sources are catalogued as ULX candidates for the first time. Our primary motivation is to identify new sources of interest for detailed follow-up studies, and within our catalogue we have already found one new extreme ULX candidate that has high S/N data in the archive: NGC 3044 ULX1. This source has a peak luminosity of $L_{\rm{X,peak}} \sim 10^{40}$ erg s$^{-1}$, and the XMM-Newton spectrum of the source while at this peak flux is very similar to other, better-studied extreme ULXs that are now understood to be local examples of super-Eddington accretion. This likely indicates that NGC 3044 ULX1 is another source accreting at super-Eddington rates. We expect that this catalogue will be a valuable resource for planning future observations of ULXs - both with our current and future X-ray facilities - to further improve our understanding of this enigmatic population.en
dc.format.extent18
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsOpen
dc.subjectastro-ph.HE
dc.subjectastro-ph.GA
dc.titleA Multi-Mission Catalogue of Ultraluminous X-ray Source Candidatesen
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionDepartment of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Engineering & Computer Science
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2022-01-01
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stab3001
rioxxterms.licenseref.uriUnspecified
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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