Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/7611
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBait, O-
dc.contributor.authorKurapati, Sushma-
dc.contributor.authorDuc, Pierre-Alain-
dc.contributor.authorCuillandre, Jean-Charles-
dc.contributor.authorWadadekar, Yogesh-
dc.contributor.authorKamphuis, Peter-
dc.contributor.authorBarway, S-
dc.date.accessioned2020-03-03T05:34:56Z-
dc.date.available2020-03-03T05:34:56Z-
dc.date.issued2020-02-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, Vol. 492, No. 1, pp. 1–7en_US
dc.identifier.issn1365-2966-
dc.identifier.urihttp://hdl.handle.net/2248/7611-
dc.descriptionRestricted Accessen_US
dc.description.abstractHere we report the discovery with the Giant Metrewave Radio Telescope of an extremely large (∼115 kpc in diameter) H I ring, located around a massive quenched galaxy, AGC 203001, but off-centred with respect to it. This ring does not have any bright extended optical counterpart unlike several other known ring galaxies. Our deep g-, r-, and i-band optical imaging of the H I ring, using the MegaCam instrument on the Canada–France–Hawaii Telescope, shows however several regions with faint optical emission at a surface brightness level of ∼28 mag arcsec−2. Such an extended H I structure is very rare with only one other case known so far – the Leo ring. Conventionally, off-centred rings have been explained by a collision with an ‘intruder’ galaxy leading to expanding density waves of gas and stars in the form of a ring. However, in such a scenario the impact also leads to large amounts of star formation in the ring that is not observed in the ring presented in this paper. We discuss possible scenarios for the formation of such H I-dominated rings.en_US
dc.language.isoenen_US
dc.publisherOxford University Press on behalf of the Royal Astronomical Societyen_US
dc.relation.urihttps://doi.org/10.1093/mnras/stz2972-
dc.rights© Royal Astronomical Society-
dc.subjectGalaxies: evolutionen_US
dc.subjectGalaxies: generalen_US
dc.subjectGalaxies: groups: generalen_US
dc.subjectGalaxies: interactionsen_US
dc.titleDiscovery of a large HI ring around the quiescent galaxy AGC 203001en_US
dc.typeArticleen_US
Appears in Collections:IIAP Publications

Files in This Item:
File Description SizeFormat 
Discovery of a large HI ring around the quiescent galaxy AGC 203001.pdfRestricted Access3.81 MBAdobe PDFView/Open    Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.