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Near-ultraviolet properties of a large sample of type ia supernovae as observed with the swift uvot

Milne, P.; Brown, P. J.; Roming, P; Holland, Stephen T; Immler, Stefan; Filippenko, Alexei; Ganeshalingam, Mohan; Li, Weidong; Stritzinger, M. D; Phillips, Mark M; Hicken, Malcolm; Schmidt, Brian; Kirshner, Robert P; Challis, Peter M; Gehrels, N

Description

We present ultraviolet (UV) and optical photometry of 26 Type Ia supernovae (SNe Ia) observed from 2005 March to 2008 March with the NASA Swift Ultraviolet and Optical Telescope (UVOT). The dataset consists of 2133 individual observations, making it by far the most complete study of the UV emission from SNe Ia to date. Grouping the SNe into three subclasses as derived from optical observations, we investigate the evolution of the colors of these SNe, finding a high degree of homogeneity within...[Show more]

dc.contributor.authorMilne, P.
dc.contributor.authorBrown, P. J.
dc.contributor.authorRoming, P
dc.contributor.authorHolland, Stephen T
dc.contributor.authorImmler, Stefan
dc.contributor.authorFilippenko, Alexei
dc.contributor.authorGaneshalingam, Mohan
dc.contributor.authorLi, Weidong
dc.contributor.authorStritzinger, M. D
dc.contributor.authorPhillips, Mark M
dc.contributor.authorHicken, Malcolm
dc.contributor.authorSchmidt, Brian
dc.contributor.authorKirshner, Robert P
dc.contributor.authorChallis, Peter M
dc.contributor.authorGehrels, N
dc.date.accessioned2015-12-10T23:07:02Z
dc.identifier.issn0004-637X
dc.identifier.urihttp://hdl.handle.net/1885/62914
dc.description.abstractWe present ultraviolet (UV) and optical photometry of 26 Type Ia supernovae (SNe Ia) observed from 2005 March to 2008 March with the NASA Swift Ultraviolet and Optical Telescope (UVOT). The dataset consists of 2133 individual observations, making it by far the most complete study of the UV emission from SNe Ia to date. Grouping the SNe into three subclasses as derived from optical observations, we investigate the evolution of the colors of these SNe, finding a high degree of homogeneity within the normal subclass, but dramatic differences between that group and the subluminous and SN 2002cx-like groups. For the normal events, the redder UV filters on UVOT (u, uvw1) show more homogeneity than do the bluer UV filters (uvm2, uvw2). Searching for purely UV characteristics to determine existing optically based groupings, we find the peak width to be a poor discriminant, but we do see a variation in the time delay between peak emission and the late, flat phase of the light curves. The UV light curves peak a few days before the B band for most subclasses (as was previously reported by Jha et al.), although the SN 2002cx-like objects peak at a very early epoch in the UV. That group also features the bluest emission observed among SNe Ia. As the observational campaign is ongoing, we discuss the critical times to observe, as determined by this study, in order to maximize the scientific output of future observations.
dc.publisherIOP Publishing
dc.sourceAstrophysical Journal, The
dc.subjectKeywords: Distance scale; Dust, extinction; Galaxies: distances and redshifts; Supernovae: general; Ultraviolet: general
dc.titleNear-ultraviolet properties of a large sample of type ia supernovae as observed with the swift uvot
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume721
dc.date.issued2010
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationf2965xPUB750
local.type.statusPublished Version
local.contributor.affiliationMilne, P., University of Arizona
local.contributor.affiliationBrown, P. J., Pennsylvania State University
local.contributor.affiliationRoming, P, Pennsylvania State University
local.contributor.affiliationHolland, Stephen T, NASA Goddard Space Flight Center
local.contributor.affiliationImmler, Stefan, NASA-Goddard Space Flight Center,
local.contributor.affiliationFilippenko, Alexei, University of California
local.contributor.affiliationGaneshalingam, Mohan, University of California
local.contributor.affiliationLi, Weidong, University of California
local.contributor.affiliationStritzinger, M. D, Las Campanas Observatory (LCO)
local.contributor.affiliationPhillips, Mark M, Observatories of the Carnegie Institution of Washington
local.contributor.affiliationHicken, Malcolm, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationSchmidt, Brian, College of Physical and Mathematical Sciences, The Australian National University
local.contributor.affiliationKirshner, Robert P, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationChallis, Peter M, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationGehrels, N, NASA Goddard Space Flight Center
local.identifier.essn1538-4357
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage1627
local.bibliographicCitation.lastpage1655
local.identifier.doi10.1088/0004-637X/721/2/1627
dc.date.updated2016-02-24T08:32:22Z
local.identifier.scopusID2-s2.0-78149258354
local.identifier.thomsonID000282193600058
dcterms.accessRightsOpen Access
dcterms.rightshttp://www.sherpa.ac.uk/romeo/issn/0004-637X/ Author can archive publisher's version/PDF. Publisher's version/PDF may be used on any website or authors' institutional repository (Sherpa/Romeo as of 8/10/2018)
CollectionsANU Research Publications

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