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dc.contributor.authorScott, T. C.
dc.contributor.authorBrinks, E.
dc.contributor.authorCortese, L.
dc.contributor.authorBoselli, A.
dc.contributor.authorBravo-Alfaro, H.
dc.date.accessioned2018-06-06T17:08:34Z
dc.date.available2018-06-06T17:08:34Z
dc.date.issued2018-04-21
dc.identifier.citationScott , T C , Brinks , E , Cortese , L , Boselli , A & Bravo-Alfaro , H 2018 , ' Abell 1367: a high fraction of late-type galaxies displaying HI morphological and kinematic perturbations ' , Monthly Notices of the Royal Astronomical Society , vol. 475 , no. 4 , pp. 4648-4669 . https://doi.org/10.1093/MNRAS/STY063
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 13227670
dc.identifier.otherPURE UUID: 73c0adc0-8d23-43c4-a26f-52d19c1aafc1
dc.identifier.otherArXiv: http://arxiv.org/abs/1801.03601v1
dc.identifier.otherScopus: 85045932117
dc.identifier.otherORCID: /0000-0002-7758-9699/work/54143421
dc.identifier.urihttp://hdl.handle.net/2299/20143
dc.descriptionThis article has been accepted for publication in Monthly Notices of The Royal Astronomical Society ©: 2018 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved
dc.description.abstractTo investigate the effects the cluster environment has on late-type galaxies (LTGs), we studied HI perturbation signatures for all Abell 1367 LTGs with HI detections. We used new Very Large Array HI observations combined with AGES single-dish blind survey data. Our study indicates that the asymmetry between the high- and low-velocity wings of the characteristic double-horn-integrated HI spectrum as measured by the asymmetry parameter, A flux, can be a useful diagnostic for ongoing and/or recent HI stripping. 26 per cent of A1367 LTGs have an A flux ratio, more asymmetrical than 3 times the 1s spread in the A flux ratio distribution of an undisturbed sample of isolated galaxies (2 per cent) and samples from other denser environments (10 per cent-20 per cent). Over half of the A1367 LTGs, which are members of groups or pairs, have an A flux ratio larger than twice the 1σ spread found in the isolated sample. This suggests intergroup/pair interactions could be making a significant contribution to the LTGs displaying such A flux ratios. The study also demonstrates that the definition of the HI offset from the optical centre of LTGs is resolution dependent, suggesting that unresolved AGES HI offsets that are significantly larger than the pointing uncertainties (> 2σ), reflect interactions which have asymmetrically displaced, significant masses of lower density HI, while having minimal impact on the location of the highest density HI in resolved maps. The distribution of A flux from a comparable sample of Virgo galaxies provides a clear indication that the frequency of HI profile perturbations is lower than in A1367.en
dc.format.extent22
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectGalaxies: clusters: individual: (Abell 1367)
dc.subjectGalaxies: clusters: intracluster medium
dc.subjectGalaxies: evolution
dc.subjectGalaxies: interactions
dc.subjectGalaxies: ISM
dc.subjectAstronomy and Astrophysics
dc.subjectSpace and Planetary Science
dc.titleAbell 1367: a high fraction of late-type galaxies displaying HI morphological and kinematic perturbationsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85045932117&partnerID=8YFLogxK
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1093/MNRAS/STY063
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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