SN 2011ht: A weak explosion in a massive extended envelope

被引：10
作者：
Chugai, N. N. [1 ]
机构：
[1] Russian Acad Sci, Inst Astron, Ul Pyatnitskaya 48, Moscow 119017, Russia
来源：
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2016年 / 42卷 / 02期
关键词：
supernovae; nucleosynthesis; SUPERNOVA; EVOLUTION; EMISSION; 1994W;
D O I：
10.1134/S106377371602002X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The possibility of explaining the light curve and the low expansion velocity of SN 2011ht, which belongs to a group of three objects showing signatures of both type IIn and type IIP supernovae, is explored. The radiated energy and expansion velocity of the ejecta of SN 2011ht are shown to be consistent with a low-energy supernova explosion (a parts per thousand 6 x 10(49) erg) and a parts per thousand currency sign2 ejecta expanding within a circumstellar envelope of radius similar to 2 x 10(14) cm and mass 6-8 An observational test for this scenario is proposed.
引用
收藏
页码：82 / 89
页数：8
相关论文
共 17 条
  • [1] LOW-TEMPERATURE ROSSELAND OPACITY TABLES
    ALEXANDER, DR
    [J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1975, 29 : 363 - 374
  • [2] HYDRODYNAMICS OF TYPE-2 SUPERNOVAE
    CHEVALIER, RA
    [J]. ASTROPHYSICAL JOURNAL, 1976, 207 (03) : 872 - 887
  • [3] Late emission from the type Ib/c SN 2001em: Overtaking the hydrogen envelope
    Chugai, NN
    Chevalier, RA
    [J]. ASTROPHYSICAL JOURNAL, 2006, 641 (02) : 1051 - 1059
  • [4] The Type IIn supernova 1994W: evidence for the explosive ejection of a circumstellar envelope
    Chugai, NN
    Blinnikov, SI
    Cumming, RJ
    Lundqvist, P
    Bragaglia, A
    Filippenko, AV
    Leonard, DC
    Matheson, T
    Sollerman, J
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2004, 352 (04) : 1213 - 1231
  • [5] Chugai NN, 2001, MON NOT R ASTRON SOC, V326, P1448, DOI 10.1111/j.1365-2966.2001.04717.x
  • [6] SN 1994W: an interacting supernova or two interacting shells?
    Dessart, Luc
    Hillier, D. John
    Gezari, Suvi
    Basa, Stephane
    Matheson, Tom
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 394 (01) : 21 - 37
  • [7] A GENERAL FORMULATION OF THE THIN-SHELL APPROXIMATION FOR AXISYMMETRIC, HYPERSONIC, HYDROMAGNETIC FLOWS
    GIULIANI, JL
    [J]. ASTROPHYSICAL JOURNAL, 1982, 256 (02) : 624 - 636
  • [8] SN 2009kn-the twin of the Type IIn supernova 1994W
    Kankare, E.
    Ergon, M.
    Bufano, F.
    Spyromilio, J.
    Mattila, S.
    Chugai, N. N.
    Lundqvist, P.
    Pastorello, A.
    Kotak, R.
    Benetti, S.
    Botticella, M. -T.
    Cumming, R. J.
    Fransson, C.
    Fraser, M.
    Leloudas, G.
    Miluzio, M.
    Sollerman, J.
    Stritzinger, M.
    Turatto, M.
    Valenti, S.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 424 (02) : 855 - 873
  • [9] Explosions of O-Ne-Mg cores, the crab supernova, and subluminous type II-P supernovae
    Kitaura, FS
    Janka, HT
    Hillebrandt, W
    [J]. ASTRONOMY & ASTROPHYSICS, 2006, 450 (01) : 345 - 350
  • [10] SN 2011ht: confirming a class of interacting supernovae with plateau light curves (Type IIn-P)
    Mauerhan, Jon C.
    Smith, Nathan
    Silverman, Jeffrey M.
    Filippenko, Alexei V.
    Morgan, Adam N.
    Cenko, S. Bradley
    Ganeshalingam, Mohan
    Clubb, Kelsey I.
    Bloom, Joshua S.
    Matheson, Thomas
    Milne, Peter
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 431 (03) : 2599 - 2611
12