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THE 1999aa-LIKE TYPE Ia SUPERNOVA IPTF14BDN IN THE ULTRAVIOLET AND OPTICAL
Smitka, MT1; Brown, PJ1; Suntzeff, NB1; Zhang JJ(张居甲)2,3,4; Zhai Q(翟倩)2,3; Wang, XF5; Mo, J5; Zhang, TM6
Source PublicationASTROPHYSICAL JOURNAL
2015-11-01
Volume813Issue:1
DOI10.1088/0004-637X/813/1/30
Contribution Rank第2完成单位
Indexed BySCI
Keywordline: formation line: identification supernovae: individual (iPTF14bdn, SN 1991T, SN 1999aa) ultraviolet: stars
Abstract

We present ultraviolet (UV) and optical photometry and spectra of the 1999aa-like supernova (SN) iPTF14bdn. The UV data were observed using the Swift Ultraviolet/ Optical Telescope and constitute the first UV spectral series of a 1999aa-like SN. From the photometry, we measure Delta m(15)(B) = 0.84 +/- 0.05 mag and blue UV colors at epochs earlier than -5 days. The spectra show that the early-time blue colors are the result of less absorption between 2800-3200 angstrom than is present in normal SNe Ia. Using model spectra fits of the data at -10 and +10 days, we identify the origin of this spectral feature to be a temperature effect in which doubly ionized iron group elements create an opacity "window." We determine that the detection of high temperatures and large quantities of iron group elements at early epochs imply the mixing of a high Ni mass into the outer layers of the SN ejecta. We also identify the source of the I-band secondary maximum in iPTF14bdn to be the decay of Fe III to Fe II, as is seen in normal SNe Ia.

Funding ProjectNASA Swift Guest Investigator grant[NNX15AR51G] ; NASA's Astrophysics Data Analysis Program[NNX13AF35G] ; Chinese academy of science (CAS) ; People's Government of Yunnan Province ; National Natural Science Foundation of China (NSFC)[11403096] ; Major State Basic Research Development Program[2013CB834903] ; NSFC[11073013] ; NSFC[11178003] ; NSFC[11325313] ; Tsinghua University Initiative Scientific Research Program ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences[XDB09000000] ; National Aeronautics and Space Administration
Funding OrganizationNASA Swift Guest Investigator grant[NNX15AR51G] ; NASA's Astrophysics Data Analysis Program[NNX13AF35G] ; Chinese academy of science (CAS) ; People's Government of Yunnan Province ; National Natural Science Foundation of China (NSFC)[11403096] ; Major State Basic Research Development Program[2013CB834903] ; NSFC[11073013, 11178003, 11325313] ; Tsinghua University Initiative Scientific Research Program ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences[XDB09000000] ; National Aeronautics and Space Administration
Language英语
Subject Area天文学 ; 恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS IDWOS:000365284100030
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordHIGH-REDSHIFT SUPERNOVAE ; DIGITAL SKY SURVEY ; PHOTOMETRY DATA RELEASE ; LIGHT CURVES ; SWIFT-UVOT ; SPECTROSCOPIC OBSERVATIONS ; ABSOLUTE MAGNITUDES ; WHITE-DWARF ; DARK ENERGY ; SN 2011FE
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5455
Collection丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
Corresponding AuthorSmitka, MT
Affiliation1.George P. and Cynthia Woods Mitchell Institute for Fundamental Physics & Astronomy, Texas A&M University, Department of Physics and Astronomy, 4242 TAMU, College Station, TX 77843, USA
2.Yunnan Observatories (YNAO), Chinese Academy of Sciences, Kunming 650011, China
3.University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China
4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
5.Physics Department and Tsinghua Center for Astrophysics (THCA), Tsinghua University, Beijing 100084, China
6.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
Recommended Citation
GB/T 7714
Smitka, MT,Brown, PJ,Suntzeff, NB,et al. THE 1999aa-LIKE TYPE Ia SUPERNOVA IPTF14BDN IN THE ULTRAVIOLET AND OPTICAL[J]. ASTROPHYSICAL JOURNAL,2015,813(1).
APA Smitka, MT.,Brown, PJ.,Suntzeff, NB.,Zhang JJ.,Zhai Q.,...&Zhang, TM.(2015).THE 1999aa-LIKE TYPE Ia SUPERNOVA IPTF14BDN IN THE ULTRAVIOLET AND OPTICAL.ASTROPHYSICAL JOURNAL,813(1).
MLA Smitka, MT,et al."THE 1999aa-LIKE TYPE Ia SUPERNOVA IPTF14BDN IN THE ULTRAVIOLET AND OPTICAL".ASTROPHYSICAL JOURNAL 813.1(2015).
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