SN 2010MB: DIRECT EVIDENCE FOR A SUPERNOVA INTERACTING WITH A LARGE AMOUNT OF HYDROGEN-FREE CIRCUMSTELLAR MATERIAL

被引：43

作者：

Ben-Ami, Sagi ^{[1
]}

Gal-Yam, Avishay ^{[1
]}

Mazzali, Paolo A. ^{[2
,3
,4
]}

Gnat, Orly ^{[5
]}

Modjaz, Maryam ^{[6
]}

Rabinak, Itay ^{[1
]}

Sullivan, Mark ^{[7
]}

Bildsten, Lars ^{[8
,9
]}

Poznanski, Dovi ^{[10
]}

Yaron, Ofer ^{[1
]}

Arcavi, Iair ^{[1
]}

Bloom, Joshua S. ^{[11
,12
]}

Horesh, Assaf ^{[13
]}

Kasliwal, Mansi M. ^{[14
]}

Kulkarni, Shrinivas R.

Nugent, Peter E.

Ofek, Eran O. ^{[1
]}

Perley, Daniel

Quimby, Robert ^{[15
]}

Xu, Dong ^{[16
]}

机构：

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

[2] Liverpool John Moores Univ, Astrophys Res Inst, Liverpool L3 5RF, Merseyside, England

[3] Max Planck Inst Astrophys, D-85748 Garching, Germany

[4] INAF, Osservatorio Astron, I-35122 Padua, Italy

[5] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

[6] NYU, Dept Phys, Ctr Cosmol & Particle Phys, New York, NY 10003 USA

[7] Univ Oxford, Dept Phys Astrophys, Oxford OX1 3RH, England

[8] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA

[9] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[10] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[11] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[12] Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[13] CALTECH, Cahill Ctr Astrophys, Pasadena, CA 91125 USA

[14] Observ Carnegie Inst Sci, Pasadena, CA 91101 USA

[15] Univ Tokyo, Kavli IPMU, Chiba 2778583, Japan

[16] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, DK-2100 Copenhagen, Denmark

来源：

ASTROPHYSICAL JOURNAL | 2014年 / 785卷 / 01期

基金：

美国国家科学基金会;

关键词：

stars COLFAML; mass-loss; Population III; supernovae COLFAML; general; PULSATIONAL PAIR-INSTABILITY; WHITE-DWARF; EMISSION; SPECTROSCOPY; SPECTRA; LINES; PROGENITOR; POPULATION; DISCOVERY; ABUNDANCE;

D O I：

10.1088/0004-637X/785/1/37

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present our observations of SN 2010mb, a Type Ic supernova (SN) lacking spectroscopic signatures of H and He. SN 2010mb has a slowly declining light curve (LC) (similar to 600 days) that cannot be powered by Ni-56/ Co-56 radioactivity, the common energy source for Type Ic SNe. We detect signatures of interaction with hydrogen- free circumstellar material including a blue quasi-continuum and, uniquely, narrow oxygen emission lines that require high densities (similar to 10(9) cm(-3)). From the observed spectra and LC, we estimate that the amount of material involved in the interaction was similar to 3M(circle dot). Our observations are in agreement with models of pulsational pair-instability SNe described in the literature.

引用

页数：13

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