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Modelling the Type Ic SN 2004aw: a moderately energetic explosion of a massive C plus O star without a GRB
Mazzali, P. A.1,2; Sauer, D. N.3; Pian, E.4,5; Deng, J.6; Prentice, S.1; Ben Ami, S.7; Taubenberger, S.2,8; Nomoto, K.9
2017-08-01
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号469期号:2页码:2498-2508
摘要An analysis of the Type Ic supernova (SN) 2004aw is performed by means of models of the photospheric and nebular spectra and of the bolometric light curve. SN 2004aw is shown not to be 'broad-lined', contrary to previous claims, but rather a 'fast-lined' SN Ic. The spectral resemblance to the narrow-lined Type Ic SN 1994I, combined with the strong nebular [O I] emission and the broad light curve, points to a moderately energetic explosion of a massive C+Ostar. The ejected Ni-56 mass is approximate to 0.20M(circle dot). The ejecta mass as constrained by the models is similar to 3-5M(circle dot), while the kinetic energy is estimated as E-K similar to 3-6 x 1051 erg. The ratio EK/M-circle dot, the specific energy that influences the shape of the spectrum, is therefore approximate to 1. The corresponding zero-age main-sequence mass of the progenitor star may have been similar to 23-28 M-circle dot. Tests show that a flatter outer density structure may have caused a broad-lined spectrum at epochs before those observed without affecting the later epochs when data are available, implying that our estimate of EK is a lower limit. SN 2004aw may have been powered by either a collapsar or a magnetar, both of which have been proposed for gamma-ray burst SNe. Evidence for this is seen in the innermost layers, which appear to be highly aspherical as suggested by the nebular line profiles. However, any engine was not extremely powerful, as the outer ejecta are more consistent with a spherical explosion and no gamma-ray burst was detected in coincidence with SN 2004aw.
文章类型Article
关键词Line: Formation Line: Identification Radiative Transfer Gamma-ray Burst: General Supernovae: General Supernovae: Individual: Sn 2004aw
WOS标题词Science & Technology ; Physical Sciences
资助者'The Dark Universe' of the German Research Foundation(TRR33) ; 'The Dark Universe' of the German Research Foundation(TRR33) ; 'The Dark Universe' of the German Research Foundation(TRR33) ; 'The Dark Universe' of the German Research Foundation(TRR33)
DOI10.1093/mnras/stx992
关键词[WOS]GAMMA-RAY BURST ; CORE-COLLAPSE SUPERNOVAE ; STRIPPED-ENVELOPE SUPERNOVAE ; BOLOMETRIC LIGHT CURVES ; BLACK-HOLE FORMATION ; 25 APRIL 1998 ; SPECTRAL MODELS ; IB/C SUPERNOVAE ; PRESUPERNOVA EVOLUTION ; NEBULAR SPECTRA
收录类别SCI
语种英语
资助者'The Dark Universe' of the German Research Foundation(TRR33) ; 'The Dark Universe' of the German Research Foundation(TRR33) ; 'The Dark Universe' of the German Research Foundation(TRR33) ; 'The Dark Universe' of the German Research Foundation(TRR33)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000406629100095
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/20082
专题空间科学研究部
作者单位1.Liverpool John Moores Univ, Astrophys Res Inst, IC2,134 Brownlow Hill, Liverpool L3 5RF, Merseyside, England
2.Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85748 Garching, Germany
3.German Aerosp Ctr DLR, Inst Atmospher Phys, D-82234 Oberpfaffenhofen, Germany
4.IASF Bo, Via Gobetti 101, I-40129 Bologna, Italy
5.Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy
6.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
7.Smithsonian Astrophys Observ, 60 Garden St, Cambridge, MA 02138 USA
8.European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
9.IPMU, Kashiwa, Chiba 2778583, Japan
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Mazzali, P. A.,Sauer, D. N.,Pian, E.,et al. Modelling the Type Ic SN 2004aw: a moderately energetic explosion of a massive C plus O star without a GRB[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,469(2):2498-2508.
APA Mazzali, P. A..,Sauer, D. N..,Pian, E..,Deng, J..,Prentice, S..,...&Nomoto, K..(2017).Modelling the Type Ic SN 2004aw: a moderately energetic explosion of a massive C plus O star without a GRB.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,469(2),2498-2508.
MLA Mazzali, P. A.,et al."Modelling the Type Ic SN 2004aw: a moderately energetic explosion of a massive C plus O star without a GRB".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 469.2(2017):2498-2508.
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