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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003232naa a2200493 4500
001oai:DiVA.org:su-158353
003SwePub
008180813s2018 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1583532 URI
0247 a https://doi.org/10.3847/1538-4357/aac5f62 DOI
040 a (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Hosseinzadeh, Griffin4 aut
2451 0a Short-lived Circumstellar Interaction in the Low-luminosity Type IIP SN 2016bkv
264 c 2018-07-03
264 1b American Astronomical Society,c 2018
338 a print2 rdacarrier
520 a While interaction with circumstellar material is known to play an important role in Type. IIn supernovae (SNe), analyses of the more common SNe IIP and IIL have not traditionally included interaction as a significant power source. However, recent campaigns to observe SNe within days of explosion have revealed narrow emission lines of high-ionization species in the earliest spectra of luminous SNe II of all subclasses. These flash ionization features indicate the presence of a confined shell of material around the progenitor star. Here we present the first low-luminosity (LL) SN to show flash ionization features, SN 2016bkv. This SN peaked at M-V = -16 mag and has Ha expansion velocities under 1350 km s(-1) around maximum light, placing it at the faint/slow end of the distribution of SNe IIP (similar to SN 2005cs). The light-curve shape of SN 2016bkv is also extreme among SNe IIP. A very strong initial peak could indicate additional luminosity from circumstellar interaction. A very small fall from the plateau to the nickel tail indicates unusually large production of radioactive nickel compared to other LL SNe IIP. A comparison between nebular spectra of SN. 2016bkv and models raises the possibility that SN. 2016bkv is an electron-capture supernova.
650 7a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng
653 a supernovae: general
653 a supernovae: individual (SN 2016bkv)
7001 a Valenti, Stefano4 aut
7001 a McCully, Curtis4 aut
7001 a Howell, D. Andrew4 aut
7001 a Arcavi, Iair4 aut
7001 a Jerkstrand, Anders4 aut
7001 a Guevel, David4 aut
7001 a Tartaglia, Leonardou Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),University of California, USA; Steward Observatory, USA4 aut0 (Swepub:su)leta1160
7001 a Rui, Liming4 aut
7001 a Mo, Jun4 aut
7001 a Wang, Xiaofeng4 aut
7001 a Huang, Fang4 aut
7001 a Song, Hao4 aut
7001 a Zhang, Tianmeng4 aut
7001 a Itagaki, Koichi4 aut
7102 a Stockholms universitetb Institutionen för astronomi4 org
7730 t Astrophysical Journald : American Astronomical Societyg 861:1q 861:1x 0004-637Xx 1538-4357
8564 u http://arxiv.org/pdf/1801.00015
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-158353
8564 8u https://doi.org/10.3847/1538-4357/aac5f6

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