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Observations of a Fast-expanding and UV-bright Type Ia Supernova SN 2013gs

文献类型：期刊论文

作者Zhang, Tianmeng1,2; Wang, Xiaofeng3; Zhao, Xulin4; Xu, Dong5; Reguitti, Andrea6; Zhang JJ(张居甲)7,8,9; Pastorello, Andrea10; Tomasella, Lina10; Ochner, Paolo6; Tartaglia, Leonardo11
刊名ASTROPHYSICAL JOURNAL
出版日期2019-02-10
卷号872期号:1页码:18
ISSN号0004-637X
关键词supernovae: general supernovae: individual (SN 2013gs)
DOI10.3847/1538-4357/aafacd
产权排序第8完成单位
文献子类Article
英文摘要

In this paper, we present extensive optical and ultraviolet (UV) observations of the type Ia supernova (SN Ia) 2013gs discovered during the Tsinghua-NAOC Transient Survey. The photometric observations in the optical show that the light curves of SN 2013gs are similar to those of normal SNe Ia, with an absolute peak magnitude of M-B = -19.25 +/- 0.15 mag and a post-maximum decline rate Delta m(15)(B) = 1.00 +/- 0.05 mag. Gehrels Swift Ultr-Violet/Optical Telescope observations indicate that SN 2013gs shows unusually strong UV emission (especially in the uvw1 band) at around the maximum light (M-uvw1 similar to -18.9 mag). The SN is characterized by relatively weak Fe II III absorptions at similar to 5000 angstrom in the early spectra and a larger expansion velocity (v(Si) similar to 13,000 km s(-1) around the maximum light) than the normal-velocity SNe Ia. We discuss the relation between the uvw1 - v color and some observables, including Si II velocity, line strength of Si II lambda 6355 and Fe II/III lines, and Delta m(15)(B). Compared to other fast-expanding SNe Ia, SN 2013gs exhibits Si and Fe absorption lines with similar strength and bluer uvw1 - v color. We briefly discussed the origin of the observed UV dispersion of SNe Ia.

学科主题天文学 ; 恒星与银河系 ; 恒星天文学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词LIGHT CURVES ; CIRCUMSTELLAR MATERIAL ; ABSOLUTE MAGNITUDES ; HUBBLE CONSTANT ; DECLINE RATE ; ULTRAVIOLET ; SPECTRA ; EVOLUTION ; LUMINOSITY ; DIVERSITY
资助项目National Natural Science Foundation of China (NSFC)[11178003] ; National Natural Science Foundation of China (NSFC)[11325313] ; National Natural Science Foundation of China (NSFC)[11633002] ; National Natural Science Foundation of China (NSFC)[11603034] ; National Natural Science Foundation of China (NSFC)[11433005] ; National Natural Science Foundation of China (NSFC)[11673027] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB023000000] ; External Cooperation Program of Chinese Academy of Sciences[114A11KYSB20160057] ; One-Hundred-Talent Program of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program "Multi-wavelength Gravitational Wave Universe" of the CAS[XDB23000000] ; National Natural Science Foundation of China[11533003] ; NSFC[11403096] ; NSFC[11773067] ; Youth Innovation Promotion Association of the CAS ; Western Light Youth Project ; Key Research Program of the CAS[KJZD-EW-M06] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; PRIN-INAF 2017
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000458043400014
资助机构National Natural Science Foundation of China (NSFC)[11178003, 11325313, 11633002, 11603034, 11433005, 11673027] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB023000000] ; External Cooperation Program of Chinese Academy of Sciences[114A11KYSB20160057] ; One-Hundred-Talent Program of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program "Multi-wavelength Gravitational Wave Universe" of the CAS[XDB23000000] ; National Natural Science Foundation of China[11533003] ; NSFC[11403096, 11773067] ; Youth Innovation Promotion Association of the CAS ; Western Light Youth Project ; Key Research Program of the CAS[KJZD-EW-M06] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; PRIN-INAF 2017
源URL[http://ir.ynao.ac.cn/handle/114a53/19343]  
专题云南天文台_丽江天文观测站（南方基地）
云南天文台_中国科学院天体结构与演化重点实验室
通讯作者Zhang, Tianmeng
作者单位1.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People's Republic of China
2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, People's Republic of China
3.Physics Department and Tsinghua Center for Astrophysics (THCA), Tsinghua University, Beijing, 100084, People's Republic of China
4.School of Science, Tianjin University of Technology, Tianjin, 300384, People's Republic of China
5.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People's Republic of China
6.Dipartimento di Fisica e Astronomia G. Galilei, Universita' di Padova, Vicolo dell'Osservaotio 3, I-35122, Padova, Italy
7.Yunnan Observatories (YNAO), Chinese Academy of Sciences, Kunming 650216, People's Republic of China
8.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China
9.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China
10.INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122, Padova, Italy
推荐引用方式
GB/T 7714		 Zhang, Tianmeng,Wang, Xiaofeng,Zhao, Xulin,et al. Observations of a Fast-expanding and UV-bright Type Ia Supernova SN 2013gs[J]. ASTROPHYSICAL JOURNAL,2019,872(1):18.
APA Zhang, Tianmeng.,Wang, Xiaofeng.,Zhao, Xulin.,Xu, Dong.,Reguitti, Andrea.,...&Zou, Hu.(2019).Observations of a Fast-expanding and UV-bright Type Ia Supernova SN 2013gs.ASTROPHYSICAL JOURNAL,872(1),18.
MLA Zhang, Tianmeng,et al."Observations of a Fast-expanding and UV-bright Type Ia Supernova SN 2013gs".ASTROPHYSICAL JOURNAL 872.1(2019):18.

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来源：云南天文台

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