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dc.contributor.authorPortas, Antonio
dc.contributor.authorScott, Tom C.
dc.contributor.authorBrinks, E.
dc.contributor.authorBosma, Albert
dc.contributor.authorVerdes-Montenegro, Lourdes
dc.contributor.authorHeesen, V.
dc.contributor.authorEspada, Daniel
dc.contributor.authorVerley, Simon
dc.contributor.authorSulentic, Jack
dc.contributor.authorSengupta, Chandreyee
dc.contributor.authorAthanassoula, E.
dc.contributor.authorYun, Min
dc.date.accessioned2011-09-26T09:01:06Z
dc.date.available2011-09-26T09:01:06Z
dc.date.issued2011-09-20
dc.identifier.citationPortas , A , Scott , T C , Brinks , E , Bosma , A , Verdes-Montenegro , L , Heesen , V , Espada , D , Verley , S , Sulentic , J , Sengupta , C , Athanassoula , E & Yun , M 2011 , ' H I asymmetries in the isolated galaxy CIG 292 ' , Astrophysical Journal Letters , vol. 739 , no. 1 , L27 , pp. - . https://doi.org/10.1088/2041-8205/739/1/L27
dc.identifier.issn2041-8213
dc.identifier.otherPURE: 375764
dc.identifier.otherPURE UUID: 76e7d98d-4fc1-4d0f-aa9d-60073a6f7fce
dc.identifier.otherWOS: 000294762900027
dc.identifier.otherScopus: 80053511506
dc.identifier.otherORCID: /0000-0002-7758-9699/work/30407815
dc.identifier.urihttp://hdl.handle.net/2299/6484
dc.description‘In these times, during the rise in the popularity of institutional repositories, the Society does not forbid authors from depositing their work in such repositories. However, the AAS regards the deposit of scholarly work in such repositories to be a decision of the individual scholar, as long as the individual's actions respect the diligence of the journals and their reviewers.’ Original article can be found at : http://iopscience.iop.org/ Copyright American Astronomical Society
dc.description.abstractWe present Expanded Very Large Array (EVLA) D-array observations of the 21 cm line of neutral hydrogen (H-I) of CIG 292, an isolated SA(s)b galaxy at a distance of similar to 24.3 Mpc. From previous Hi single dish observations the galaxy was known to have a mildly asymmetric H-I profile (A(flux) = 1.23 +/- 0.3). Our EVLA observations show there is similar to 12% more Hi projected south of the optical center (approaching velocities) than in the north (receding velocities), despite the H-I extending similar to 16% further to the north than the south. The Hi projected within the optical disk must have been perturbed within the Hi relaxation time (similar to 10(8) yr) which implies that this cannot have been caused by any of the three nearest companions, as their distance (similar to 0.5 Mpc) is too large. Neither Hi-rich companions nor tidal tails were found within our field of view and velocity range covered. Our kinematical data suggest that the inner part harbors an oval distortion whereas the outer regions show signs of a modest warp. The mild asymmetry in the Hi global profile thus actually masks stronger asymmetries in the two-dimensional distributions of gas and star-forming regions in this galaxy. Since the galaxy is isolated, this must predominantly be due to processes related to its formation and secular evolution.en
dc.format.extent6
dc.language.isoeng
dc.relation.ispartofAstrophysical Journal Letters
dc.rightsOpen
dc.subjectgalaxies: individual (NGC 2712=CIG 292=UGC4708)
dc.subjectgalaxies: kinematics and dynamics
dc.subjectgalaxies: spiral
dc.subjectgalaxies: structure
dc.titleH I asymmetries in the isolated galaxy CIG 292en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2011-09-20
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1088/2041-8205/739/1/L27
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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