Near-Infrared Line Identification In Type Ia Supernovae During The Transitional Phase

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dc.contributor.utaustinauthorMarion, G. H.en_US
dc.creatorFriesen, Brianen_US
dc.creatorBaron, E.en_US
dc.creatorWisniewski, John P.en_US
dc.creatorParrent, Jerod T.en_US
dc.creatorThomas, R. C.en_US
dc.creatorMiller, Timothy R.en_US
dc.creatorMarion, G. H.en_US
dc.date.accessioned2016-04-28T19:34:53Z
dc.date.available2016-04-28T19:34:53Z
dc.date.issued2014-09en
dc.description.abstractWe present near-infrared synthetic spectra of a delayed-detonation hydrodynamical model and compare them to observed spectra of four normal Type Ia supernovae ranging from day +56.5 to day +85. This is the epoch during which supernovae are believed to be undergoing the transition from the photospheric phase, where spectra are characterized by line scattering above an optically thick photosphere, to the nebular phase, where spectra consist of optically thin emission from forbidden lines. We find that most spectral features in the near-infrared can be accounted for by permitted lines of Fe II and Co II. In addition, we find that [Ni II] fits the emission feature near 1.98 mu m, suggesting that a substantial mass of Ni-58 exists near the center of the ejecta in these objects, arising from nuclear burning at high density.en_US
dc.description.departmentAstronomyen_US
dc.description.sponsorshipNSF AST-0707704en_US
dc.description.sponsorshipNASA through a grant from the Space Telescope Science Institute HST-GO-12298.05-A, HST-GO-122948.04-Aen_US
dc.description.sponsorshipNASA NAS5-26555en_US
dc.description.sponsorshipOffice of Science of the U.S. Department of Energy DE-AC02-05CH11231en_US
dc.description.sponsorshipHochstleistungs Rechenzentrum Nord (HLRN)en_US
dc.identifierdoi:10.15781/T2HN6J
dc.identifier.Filename2014_09_nearinfrared.pdfen_US
dc.identifier.citationFriesen, Brian, E. Baron, John P. Wisniewski, Jerod T. Parrent, R. C. Thomas, Timothy R. Miller, and G. H. Marion. "Near-infrared line identification in type Ia supernovae during the transitional phase." The Astrophysical Journal, Vol. 792, No. 2 (Sep., 2014): 120.en_US
dc.identifier.doi10.1088/0004-637x/792/2/120en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/2152/34807
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.relation.ispartofserialAstrophysical Journalen_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.subjectatomic dataen_US
dc.subjectradiative transferen_US
dc.subjectsupernovae: generalen_US
dc.subjectsupernovae:en_US
dc.subjectindividual (sn 2001fe, sn2002bo, sn 2003du, sn 2014j)en_US
dc.subjectlte model atmospheresen_US
dc.subjectmaximum lighten_US
dc.subjectspectraen_US
dc.subjectspectroscopyen_US
dc.subjecttimeen_US
dc.subjectnucleosynthesisen_US
dc.subjectconstraintsen_US
dc.subjectexplosionen_US
dc.subject2014jen_US
dc.subjectm82en_US
dc.subjectastronomy & astrophysicsen_US
dc.titleNear-Infrared Line Identification In Type Ia Supernovae During The Transitional Phaseen_US
dc.typeArticleen_US

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