The Massive Progenitor of the Type II-Linear Supernova 2009kr

dc.contributor.utaustinauthorVinko, Jozsefen_US
dc.creatorElias-Rosa, Nancyen_US
dc.creatorVan Dyk, Schuyler D.en_US
dc.creatorLi, Weidongen_US
dc.creatorMiller, Adam A.en_US
dc.creatorSilverman, Jeffrey M.en_US
dc.creatorGaneshalingam, Mohanen_US
dc.creatorBoden, Andrew F.en_US
dc.creatorKasliwal, Mansi M.en_US
dc.creatorVinko, Jozsefen_US
dc.creatorCuillandre, Jean-Charlesen_US
dc.creatorFilippenko, Alexei V.en_US
dc.creatorSteele, Thea N.en_US
dc.creatorBloom, Joshua S.en_US
dc.creatorGriffith, Christopher V.en_US
dc.creatorKleiser, Io K. W.en_US
dc.creatorFoley, Ryan J.en_US
dc.date.accessioned2016-10-28T19:34:53Z
dc.date.available2016-10-28T19:34:53Z
dc.date.issued2010-05en_US
dc.description.abstractWe present early-time photometric and spectroscopic observations of supernova (SN) 2009kr in NGC 1832. We find that its properties to date support its classification as Type II-linear (SN II-L), a relatively rare subclass of core-collapse supernovae (SNe). We have also identified a candidate for the SN progenitor star through comparison of pre-explosion, archival images taken with WFPC2 on board the Hubble Space Telescope with SN images obtained using adaptive optics plus NIRC2 on the 10 m Keck-II telescope. Although the host galaxy's substantial distance (similar to 26 Mpc) results in large uncertainties in the relative astrometry, we find that if this candidate is indeed the progenitor, it is a highly luminous (M(V)(0) = -7.8 mag) yellow supergiant with initial mass similar to 18-24 M(circle dot). This would be the first time that an SN II-L progenitor has been directly identified. Its mass may be a bridge between the upper initial mass limit for the more common Type II-plateau SNe and the inferred initial mass estimate for one Type II-narrow SN.en_US
dc.description.departmentAstronomyen_US
dc.description.sponsorshipHungarian OTKA K76816en_US
dc.description.sponsorshipNSF AST-0707769, AST-0908886en_US
dc.description.sponsorshipSylvia & Jim Katzman Foundationen_US
dc.description.sponsorshipTABASGO Foundationen_US
dc.description.sponsorshipNASA through STScI AR-11248, GO-10877en_US
dc.description.sponsorshipHarvard Universityen_US
dc.description.sponsorshipUC Berkeleyen_US
dc.description.sponsorshipUniversity of Virginiaen_US
dc.description.sponsorshipNASA/Swift NNX09AQ66Gen_US
dc.description.sponsorshipDOEen_US
dc.identifierdoi:10.15781/T2QZ22K89
dc.identifier.citationElias-Rosa, Nancy, Schuyler D. Van Dyk, Weidong Li, Adam A. Miller, Jeffrey M. Silverman, Mohan Ganeshalingam, Andrew F. Boden et al. "The massive progenitor of the Type II-linear Supernova 2009kr." The Astrophysical Journal Letters, Vol. 714, No. 2 (May, 2010): L254.en_US
dc.identifier.doi10.1088/2041-8205/714/2/l254en_US
dc.identifier.issn2041-8205en_US
dc.identifier.urihttp://hdl.handle.net/2152/42946
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.relation.ispartofserialAstrophysical Journal Lettersen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.rights.restrictionOpenen_US
dc.subjectgalaxies: individual (ngc 1832)en_US
dc.subjectstars: evolutionen_US
dc.subjectsupernovae: generalen_US
dc.subjectsupernovae: individual (sn 2009kr)en_US
dc.subjectexpanding photosphere methoden_US
dc.subjectinfrared-emissionen_US
dc.subjectp supernovaeen_US
dc.subjectsnen_US
dc.subject1999emen_US
dc.subjectevolutionen_US
dc.subjectngc-6946en_US
dc.subjectspectraen_US
dc.subjectnovaeen_US
dc.subject1979cen_US
dc.subjectphotometryen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleThe Massive Progenitor of the Type II-Linear Supernova 2009kren_US
dc.typeArticleen_US

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