Optical Observations of the Young Type Ic Supernova SN 2014L in M99

被引：9

作者：

Zhang, Jujia ^{[1
,2
,3
,4
]}

Wang, Xiaofeng ^{[5
,6
]}

Vinko, Jozsef ^{[7
,8
,9
]}

Wheeler, J. Craig ^{[9
]}

Chang, Liang ^{[1
,3
,4
]}

Yang, Yi ^{[2
]}

Wang, Lifan ^{[2
,10
]}

Zhai, Qian ^{[1
,3
,4
]}

Rui, Liming ^{[5
,6
]}

Mo, Jun ^{[5
,6
]}

Zhang, Tianmeng ^{[11
]}

Zhang, Yu ^{[12
]}

Wang, Jianguo ^{[1
,3
,4
]}

Mao, Jirong ^{[1
,3
,4
]}

Wang, Chuanjun ^{[1
,3
,4
]}

Yi, Weimin ^{[1
,3
,4
]}

Xin, Yuxin ^{[1
,3
,4
]}

Li, Wenxiong ^{[5
,6
]}

Lun, Baoli ^{[1
,3
,4
]}

Lu, Kaixing ^{[1
,3
,4
]}

Sai, Hanna ^{[5
,6
]}

Zheng, Xiangming ^{[1
,3
,4
]}

Zhang, Xiliang ^{[1
,3
,4
]}

Zhou, Xu ^{[11
]}

Bai, Jinming ^{[1
,3
,4
]}

机构：

[1] Chinese Acad Sci, Yunnan Observ YNAO, Kunming 650216, Yunnan, Peoples R China

[2] Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, College Stn, TX 77843 USA

[3] Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Yunnan, Peoples R China

[4] Chinese Acad Sci, Ctr Astron Mega Sci, 20A Datun Rd, Beijing 100012, Peoples R China

[5] Tsinghua Univ, Phys Dept, Beijing 100084, Peoples R China

[6] Tsinghua Univ, Tsinghua Ctr Astrophys THCA, Beijing 100084, Peoples R China

[7] Res Ctr Astron & Earth Sci, Konkoly Observ, Konkoly Thege Ut 15-17, H-1121 Budapest, Hungary

[8] Univ Szeged, Dept Opt & Quantum Elect, Domter 9, H-6720 Szeged, Hungary

[9] Univ Texas Austin, Dept Astron, RLM 15308, Austin, TX 78712 USA

[10] Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel

[11] Chinese Acad Sci, NAOC, Beijing 100012, Peoples R China

[12] Chinese Acad Sci, XAO, Urumqi 830011, Peoples R China

来源：

ASTROPHYSICAL JOURNAL | 2018年 / 863卷 / 01期

基金：

中国国家自然科学基金;

关键词：

supernovae:; individual; (SN; 2014L); GAMMA-RAY BURST; HELIUM STAR MODELS; 25; APRIL; 1998; LIGHT CURVES; TRANSIENT; 080109; IB SUPERNOVAE; FAINT TYPE; M51; EXPLOSION; EVOLUTION;

D O I：

10.3847/1538-4357/aaceaf

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present optical spectroscopic and photometric observations of the nearby type Ic supernova (SN Ic) SN 2014L. This SN was discovered by the Tsinghua-NAOC Transient Survey (TNTS) in the nearby type-Sc spiral galaxy M99((NGC 4254). Fitting to the early-time light curve indicates that SN 2014L was detected at only a few hours after the shock breakout, and it reached a peak brightness of M-V = -17.73 +/- 0.28 mag (L = [2.06 +/- 0.50] x 10(42) erg s(-1)) approximately 13 days later. SN 2014L shows a close resemblance to SN 2007gr in the photometric evolution, while it shows stronger absorption features of intermediate-mass elements (especially Ca II) in the early-time spectra. Based on simple modeling of the observed light curves, we derived the mass of synthesized Ni-56 as M-Ni = 0.075 +/- 0.025 M-circle dot, and the mass and total energy of the ejecta as M-ej = 1.00 +/- 0.20 M-circle dot and E-ej = 1.45 +/- 0.25 foe, respectively. Given these typical explosion parameters, the early detection, and the extensive observations, we suggest that SN 2014L could be a template sample for the investigation of SNe Ic.

引用

页数：14

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