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dc.contributor.authorWang, Xiaofeng
dc.contributor.authorWang, Lifan
dc.contributor.authorFilippenko, Alexei V.
dc.contributor.authorBaron, Eddie
dc.contributor.authorKromer, Markus
dc.contributor.authorJack, Dennis
dc.contributor.authorZhang, Tianmeng
dc.contributor.authorAldering, Greg
dc.contributor.authorAntilogus, Pierre
dc.contributor.authorArnett, W. David
dc.contributor.authorBaade, Dietrich
dc.contributor.authorBarris, Brian J.
dc.contributor.authorBenetti, Stefano
dc.contributor.authorBouchet, Patrice
dc.contributor.authorBurrows, Adam S.
dc.contributor.authorCanal, Ramon
dc.contributor.authorCappellaro, Enrico
dc.contributor.authorCarlberg, Raymond G.
dc.contributor.authordi Carlo, Elisa
dc.contributor.authorChallis, Peter J.
dc.contributor.authorCrotts, Arlin P. S.
dc.contributor.authorDanziger, John I.
dc.contributor.authorValle, Massimo Della
dc.contributor.authorFink, Michael
dc.contributor.authorFoley, Ryan J.
dc.contributor.authorFransson, Claes
dc.contributor.authorGal-Yam, Avishay
dc.contributor.authorGarnavich, Peter M.
dc.contributor.authorGerardy, Chris L.
dc.contributor.authorGoldhaber, Gerson
dc.contributor.authorHamuy, Mario
dc.contributor.authorHillebrandt, Wolfgang
dc.contributor.authorHöflich, Peter
dc.contributor.authorHolland, Stephen T.
dc.contributor.authorHolz, Daniel E.
dc.contributor.authorHughes, John P.
dc.contributor.authorJeffery, David J.
dc.contributor.authorJha, Saurabh W.
dc.contributor.authorKasen, Dan
dc.contributor.authorKhokhlov, Alexei M.
dc.contributor.authorKirshner, Robert P.
dc.contributor.authorKnop, Robert A.
dc.contributor.authorKozma, Cecilia
dc.contributor.authorKrisciunas, Kevin
dc.contributor.authorLee, Brian C.
dc.contributor.authorLeibundgut, Bruno
dc.contributor.authorLentz, Eric J.
dc.contributor.authorLeonard, Douglas C.
dc.contributor.authorLewin, Walter H. G.
dc.contributor.authorLi, Weidong
dc.contributor.authorLivio, Mario
dc.contributor.authorLundqvist, Peter
dc.contributor.authorMaoz, Dan
dc.contributor.authorMatheson, Thomas
dc.contributor.authorMazzali, Paolo A.
dc.contributor.authorMeikle, Peter
dc.contributor.authorMiknaitis, Gajus
dc.contributor.authorMilne, Peter A.
dc.contributor.authorMochnacki, Stefan W.
dc.contributor.authorNomoto, Ken'ichi
dc.contributor.authorNugent, Peter E.
dc.contributor.authorOran, Elaine S.
dc.contributor.authorPanagia, Nino
dc.contributor.authorPerlmutter, Saul
dc.contributor.authorPhillips, Mark M.
dc.contributor.authorPinto, Philip
dc.contributor.authorPoznanski, Dovi
dc.contributor.authorPritchet, Christopher J.
dc.contributor.authorReinecke, Martin
dc.contributor.authorRiess, Adam G.
dc.contributor.authorRuiz-Lapuente, Pilar
dc.contributor.authorScalzo, Richard A.
dc.contributor.authorSchlegel, Eric M.
dc.contributor.authorSchmidt, Brian P.
dc.contributor.authorSiegrist, James
dc.contributor.authorSoderberg, Alicia M.
dc.contributor.authorSollerman, Jesper
dc.contributor.authorSonneborn, George
dc.contributor.authorSpadafora, Anthony
dc.contributor.authorSpyromilio, Jason
dc.contributor.authorSramek, Richard A.
dc.contributor.authorStarrfield, Sumner G.
dc.contributor.authorStrolger, Louis G.
dc.contributor.authorSuntzeff, Nicholas B.
dc.contributor.authorThomas, Rollin C.
dc.contributor.authorTonry, John L.
dc.contributor.authorTornambe, Amedeo
dc.contributor.authorTruran, James W.
dc.contributor.authorTuratto, Massimo
dc.contributor.authorTurner, Michael
dc.contributor.authorVan Dyk, Schuyler D.
dc.contributor.authorWeiler, Kurt W.
dc.contributor.authorWheeler, J. Craig
dc.contributor.authorWood-Vasey, Michael
dc.contributor.authorWoosley, Stanford E.
dc.contributor.authorYamaoka, Hitoshi
dc.date.accessioned2019-09-25T14:12:19Z
dc.date.issued2012
dc.identifier.citationWang, Xiaofeng, Lifan Wang, Alexei V. Filippenko, Eddie Baron, Markus Kromer, Dennis Jack, Tianmeng Zhang, et al. 2012. “EVIDENCE FOR TYPE Ia SUPERNOVA DIVERSITY FROM ULTRAVIOLET OBSERVATIONS WITH THE HUBBLE SPACE TELESCOPE.” The Astrophysical Journal 749 (2): 126. https://doi.org/10.1088/0004-637x/749/2/126.
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41399785*
dc.description.abstractWe present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Surveys on the Hubble Space Telescope. This data set provides unique spectral time series down to 2000 angstrom. Significant diversity is seen in the near-maximum-light spectra (similar to 2000-3500 angstrom) for this small sample. The corresponding photometric data, together with archival data from Swift Ultraviolet/Optical Telescope observations, provide further evidence of increased dispersion in the UV emission with respect to the optical. The peak luminositiesmeasured in the uvw1/F250W filter are found to correlate with the B-band light-curve shape parameter Delta m(15)(B), but with much larger scatter relative to the correlation in the broadband B band (e.g., similar to 0.4 mag versus similar to 0.2 mag for those with 0.8 mag < Delta m(15)(B) < 1.7 mag). SN 2004dt is found as an outlier of this correlation (at > 3 sigma), being brighter than normal SNe Ia such as SN 2005cf by similar to 0.9 mag and similar to 2.0 mag in the uvw1/F250W and uvm2/F220W filters, respectively. We show that different progenitor metallicity or line-expansion velocities alone cannot explain such a large discrepancy. Viewing-angle effects, such as due to an asymmetric explosion, may have a significant influence on the flux emitted in the UV region. Detailed modeling is needed to disentangle and quantify the above effects.
dc.language.isoen_US
dc.publisherAmerican Astronomical Society
dash.licenseLAA
dc.titleEvidence for Type Ia Supernova Diversity From Ultraviolet Observations with the Hubble Space Telescope
dc.typeJournal Article
dc.description.versionVersion of Record
dc.relation.journalThe Astrophysical Journal
dash.depositing.authorKirshner, Robert P.::0f07c3b6230f5e5a42326bcba12a1795::600
dc.date.available2019-09-25T14:12:19Z
dash.workflow.comments1Science Serial ID 99109
dc.identifier.doi10.1088/0004-637X/749/2/126
dash.source.volume749;2
dash.source.page126


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