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dc.contributor.authorVan Dyk, Schuyler D.
dc.contributor.authorZheng, WeiKang
dc.contributor.authorMaund, Justyn R.
dc.contributor.authorBrink, Thomas G.
dc.contributor.authorSrinivasan, Sundar
dc.contributor.authorAndrews, Jennifer E.
dc.contributor.authorSmith, Nathan
dc.contributor.authorLeonard, Douglas C.
dc.contributor.authorMorozova, Viktoriya
dc.contributor.authorFilippenko, Alexei V.
dc.contributor.authorConner, Brody
dc.contributor.authorMilisavljevic, Dan
dc.contributor.authorde Jaeger, Thomas
dc.contributor.authorLong, Knox S.
dc.contributor.authorIsaacson, Howard
dc.contributor.authorCrossfield, Ian
dc.contributor.authorKosiarek, Molly R.
dc.contributor.authorHoward, Andrew W.
dc.contributor.authorFox, Ori D.
dc.contributor.authorKelly, Patrick L.
dc.contributor.authorPiro, Anthony L.
dc.contributor.authorLittlefair, Stuart P.
dc.contributor.authorDhillon, Vik S.
dc.contributor.authorWilson, Richard
dc.contributor.authorButterley, Timothy
dc.contributor.authorYunus, Sameen
dc.contributor.authorChanna, Sanyum
dc.contributor.authorJeffers, Benjamin T.
dc.contributor.authorFalcon, Edward
dc.contributor.authorRoss, Timothy W.
dc.contributor.authorHestenes, Julia C.
dc.contributor.authorStegman, Samantha M.
dc.contributor.authorZhang, Keto
dc.contributor.authorKumar, Sahana
dc.date.accessioned2021-01-04T19:37:07Z
dc.date.available2021-01-04T19:37:07Z
dc.date.issued2019-04-24
dc.identifier.citationSchuyler D. Van Dyk et al 2019 ApJ 875 136en_US
dc.identifier.urihttp://hdl.handle.net/1808/31020
dc.description.abstractWe present extensive optical photometric and spectroscopic observations, from 4 to 482 days after explosion, of the Type II-plateau (II-P) supernova (SN) 2017eaw in NGC 6946. SN 2017eaw is a normal SN II-P intermediate in properties between, for example, SN 1999em and SN 2012aw and the more luminous SN 2004et, also in NGC 6946. We have determined that the extinction to SN 2017eaw is primarily due to the Galactic foreground and that the SN site metallicity is likely subsolar. We have also independently confirmed a tip-of-the-red-giant-branch (TRGB) distance to NGC 6946 of 7.73 ± 0.78 Mpc. The distances to the SN that we have also estimated via both the standardized candle method and expanding photosphere method corroborate the TRGB distance. We confirm the SN progenitor identity in pre-explosion archival Hubble Space Telescope (HST) and Spitzer Space Telescope images, via imaging of the SN through our HST Target of Opportunity program. Detailed modeling of the progenitor's spectral energy distribution indicates that the star was a dusty, luminous red supergiant consistent with an initial mass of ~15 M ⊙.en_US
dc.publisherAmerican Astronomical Societyen_US
dc.rights© 2019. The American Astronomical Society. All rights reserved.en_US
dc.subjectGalaxies: distances and redshiftsen_US
dc.subjectGalaxies: individual (NGC 6946)en_US
dc.subjectStars: massiveen_US
dc.subjectSupergiantsen_US
dc.subjectSupernovae: generalen_US
dc.subjectSupernovae: individual (SN 2017eaw)en_US
dc.titleThe Type II-plateau Supernova 2017eaw in NGC 6946 and Its Red Supergiant Progenitoren_US
dc.typeArticleen_US
kusw.kuauthorCrossfield, Ian
kusw.kudepartmentPhysics and Astronomyen_US
dc.identifier.doi10.3847/1538-4357/ab1136en_US
dc.identifier.orcidhttps://orcid.org/0000-0001-9038-9950en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-2636-6508en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-0733-7215en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-0674-5930en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-3460-0103en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-0763-3885en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-4134-864Xen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-0531-1073en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-6115-4359en_US
dc.identifier.orcidhttps://orcid.org/0000-0001-8638-0320en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-2238-1572en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-3142-997Xen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-6806-0673en_US
dc.identifier.orcidhttps://orcid.org/0000-0001-7221-855Xen_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccessen_US


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