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dc.contributor.authorPandey, Divya
dc.contributor.authorSaha, Kanak
dc.contributor.authorPradhan, Ananta C.
dc.contributor.authorKaviraj, Sugata
dc.date.accessioned2022-12-21T11:45:02Z
dc.date.available2022-12-21T11:45:02Z
dc.date.issued2022-12-16
dc.identifier.citationPandey , D , Saha , K , Pradhan , A C & Kaviraj , S 2022 , ' Central Star Formation in Early-type Galaxy I Zw 81 in the Bootes Void ' , The Astrophysical Journal , vol. 941 , no. 2 , 128 . https://doi.org/10.3847/1538-4357/aca1c5
dc.identifier.issn0004-637X
dc.identifier.otherArXiv: http://arxiv.org/abs/2211.04043v1
dc.identifier.otherJisc: 796223
dc.identifier.otherpublisher-id: apjaca1c5
dc.identifier.othermanuscript: aca1c5
dc.identifier.otherother: aas40820
dc.identifier.otherORCID: /0000-0002-5601-575X/work/125259481
dc.identifier.urihttp://hdl.handle.net/2299/25961
dc.description© 2022. The Author(s). Published by the American Astronomical Society. This is an open access article distributed under the Creative Commons Attribution License, to view a copy of the license, see: https://creativecommons.org/licenses/by/4.0/
dc.description.abstractThe origin of star formation in customarily passively evolving early-type massive galaxies is poorly understood. We present a case study of a massive galaxy, I Zw 81, inside the Bootes void. The void galaxy is known to host active galactic nuclei (AGN). Our detailed 2D decomposition of the surface brightness distribution in the Canada France Hawaii Telescope (CFHT) g and r bands revealed multiple structural components such as a nuclear point source, a bar, a ring, and an inner exponential disk followed by an outer low surface brightness disk. I Zw 81 turns out to be a disk-dominated galaxy with lenticular morphology. The modeling of the multiwavelength spectral energy distribution shows that the galaxy is star-forming (SF), and belongs to the blue cloud. We find that the optical (g−r) color of the bar is bluer than the disks, and the far- and near-ultraviolet emission inside the galaxy observed with Imaging Telescope onboard AstroSat is concentrated in the central few kpc region enclosing the bar. The strong bar might be playing a pivotal role in driving the gas inflow and causing SF activity in tandem with the minor merger-like interactions as evident from the deep CFHT data. The low-luminosity AGN is insufficient to quench the central SF. The results are peculiar from the standpoint of a massive barred lenticular galaxy.en
dc.format.extent12
dc.format.extent7100659
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.subject310
dc.subjectGalaxies and Cosmology
dc.subjectAstronomy and Astrophysics
dc.subjectSpace and Planetary Science
dc.titleCentral Star Formation in Early-type Galaxy I Zw 81 in the Bootes Voiden
dc.contributor.institutionDepartment of Physics, Astronomy and Mathematics
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionCentre of Data Innovation Research
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85145297033&partnerID=8YFLogxK
rioxxterms.versionofrecord10.3847/1538-4357/aca1c5
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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