A LUMINOUS PECULIAR TYPE IA SUPERNOVA SN 2011HR: MORE LIKE SN 1991T OR SN 2007if?

被引：10
|
作者：
Zhang, Ju-Jia [1 ,2 ,3 ,4 ]
Wang, Xiao-Feng [3 ,4 ]
Sasdelli, Michele [5 ,6 ]
Zhang, Tian-Meng [7 ]
Liu, Zheng-Wei [8 ]
Mazzali, Paolo A. [5 ,6 ]
Meng, Xiang-Cun [1 ,2 ]
Maeda, Keiichi [9 ,10 ]
Chen, Jun-Cheng [3 ,4 ]
Huang, Fang [3 ,4 ]
Zhao, Xu-Lin [3 ,4 ]
Zhang, Kai-Cheng [3 ,4 ]
Zhai, Qian [1 ,2 ,11 ]
Pian, Elena [12 ,13 ]
Wang, Bo [1 ,2 ]
Chang, Liang [1 ,2 ]
Yi, Wei-Min [1 ,2 ]
Wang, Chuan-Jun [1 ,2 ,11 ]
Wang, Xue-Li [1 ,2 ]
Xin, Yu-Xin [1 ,2 ]
Wang, Jian-Guo [1 ,2 ]
Lun, Bao-Li [1 ,2 ]
Zheng, Xiang-Ming [1 ,2 ]
Zhang, Xi-Liang [1 ,2 ]
Fan, Yu-Feng [1 ,2 ]
Bai, Jin-Ming [1 ,2 ]
机构：
[1] Chinese Acad Sci, Yunnan Observ YNAO, Kunming 650011, Peoples R China
[2] Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China
[3] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[4] Tsinghua Univ, Tsinghua Ctr Astrophys THCA, Beijing 100084, Peoples R China
[5] Liverpool John Moores Univ, Astrophys Res Inst, Liverpool Sci Pk,146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England
[6] Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85748 Garching, Germany
[7] Chinese Acad Sci, NAOC, Beijing 100012, Peoples R China
[8] Argelander Inst Astron, Hugel 71, D-53121 Bonn, Germany
[9] Kyoto Univ, Dept Astron, Kyoto 6068502, Japan
[10] Univ Tokyo, Kavli Inst Phys & Math Universe WPI, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778583, Japan
[11] Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[12] INAF IASF Bo, Via Gobetti 101, I-40129 Bologna, Italy
[13] Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy
来源：
ASTROPHYSICAL JOURNAL | 2016年 / 817卷 / 02期
基金：
美国国家科学基金会;
关键词：
galaxies: individual (NGC 2691); supernovae: general; supernovae:; individual; (SN; 2011hr; SN; 1991T; 2007if); GRAVITATIONALLY CONFINED DETONATION; NEAR-INFRARED OBSERVATIONS; HIGH-VELOCITY FEATURES; HUBBLE-SPACE-TELESCOPE; LIGHT CURVES; ABUNDANCE STRATIFICATION; WHITE-DWARF; SPECTROSCOPIC OBSERVATIONS; ULTRAVIOLET OBSERVATIONS; EXPLOSION;
D O I：
10.3847/0004-637X/817/2/114
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Photometric and spectroscopic observations of a slowly declining, luminous Type Ia supernova (SN Ia) SN 2011hr in the starburst galaxy NGC 2691 are presented. SN. 2011hr is found to peak at MB = -19.84 +/- 0.40 mag, with a postmaximum decline rate Delta(m15)(B) = 0.92. +/- 0.03 mag. From the maximum-light bolometric luminosity, L = (2.30 +/- 0.90) x 10(43) erg s(-1), we estimate the mass of synthesized Ni-56 in SN 2011hr to be M(Ni-56) = 1.11 +/- 0.43M(circle dot). SN 2011hr appears more luminous than SN 1991T at around maximum light, and the absorption features from its intermediate-mass elements (IMEs) are noticeably weaker than those of the latter at similar phases. Spectral modeling suggests that SN 2011hr has IMEs of similar to 0.07 M-circle dot in the outer ejecta, which is much lower than the typical value of normal SNe Ia (i.e., 0.3-0.4 M-circle dot) and is also lower than the value of SN 1991T (i.e., similar to 0.18 M-circle dot). These results indicate that SN. 2011hr may arise from a Chandrasekhar-mass white dwarf progenitor that experienced a more efficient burning process in the explosion. Nevertheless, it is still possible that SN. 2011hr may serve as a transitional object connecting the SN 1991T-like SNe Ia with a superluminous subclass like SN 2007if given that the latter also shows very weak IMEs at all phases.
引用
收藏
页数：13
相关论文
共 47 条
  • [21] LATE DETONATION MODELS FOR THE TYPE-IA SUPERNOVAE SN-1991T AND SN-1990N
    YAMAOKA, H
    NOMOTO, K
    SHIGEYAMA, T
    THIELEMANN, FK
    ASTROPHYSICAL JOURNAL, 1992, 393 (02): : L55 - L58
  • [22] SN 2022vqz: a peculiar subluminous Type Ia supernova with prominent early excess emission
    Xi, Gaobo
    Wang, Xiaofeng
    Li, Gaici
    Liu, Jialian
    Yan, Shengyu
    Lin, Weili
    Zhao, Jieming
    Filippenko, Alexei, V
    Zheng, Weikang
    Brink, Thomas G.
    Yang, Y.
    Ehgamberdiev, Shuhrat A.
    Mirzaqulov, Davron
    Reguitti, Andrea
    Pastorello, Andrea
    Tomasella, Lina
    Cai, Yongzhi
    Zhang, Jujia
    Li, Zhitong
    Zhang, Tianmeng
    Sai, Hanna
    Chen, Zhihao
    Liu, Qichun
    Ma, Xiaoran
    Xiang, Danfeng
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 527 (04) : 9957 - 9976
  • [23] The brightness of SN 1991T and the uniformity of decline-rate and colour corrected absolute magnitudes of supernovae Ia
    Richtler, T
    Jensen, JB
    Tonry, J
    Barris, B
    Drenkhahn, G
    ASTRONOMY & ASTROPHYSICS, 2001, 368 (02) : 391 - 397
  • [24] SN 2022vqz: a peculiar subluminous Type Ia supernova with prominent early excess emission
    Xi, Gaobo
    Wang, Xiaofeng
    Li, Gaici
    Liu, Jialian
    Yan, Shengyu
    Lin, Weili
    Zhao, Jieming
    Filippenko, Alexei, V
    Zheng, Weikang
    Brink, Thomas G.
    Yang, Y.
    Ehgamberdiev, Shuhrat A.
    Mirzaqulov, Davron
    Reguitti, Andrea
    Pastorello, Andrea
    Tomasella, Lina
    Cai, Yongzhi
    Zhang, Jujia
    Li, Zhitong
    Zhang, Tianmeng
    Sai, Hanna
    Chen, Zhihao
    Liu, Qichun
    Ma, Xiaoran
    Xiang, Danfeng
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2024, 527 (04) : 9957 - 9976
  • [25] A SWIFT LOOK AT SN 2011fe: THE EARLIEST ULTRAVIOLET OBSERVATIONS OF A TYPE Ia SUPERNOVA
    Brown, Peter J.
    Dawson, Kyle S.
    de Pasquale, Massimiliano
    Gronwall, Caryl
    Holland, Stephen
    Immler, Stefan
    Kuin, Paul
    Mazzali, Paolo
    Milne, Peter
    Oates, Samantha
    Siegel, Michael
    ASTROPHYSICAL JOURNAL, 2012, 753 (01):
  • [26] The late-time light curve of the Type Ia supernova SN 2011fe
    Dimitriadis, G.
    Sullivan, M.
    Kerzendorf, W.
    Ruiter, A. J.
    Seitenzahl, I. R.
    Taubenberger, S.
    Doran, G. B.
    Gal-Yam, A.
    Laher, R. R.
    Maguire, K.
    Nugent, P.
    Ofek, E. O.
    Surace, J.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 468 (04) : 3798 - 3812
  • [27] ANALYSIS OF THE PHOTOSPHERIC EPOCH SPECTRA OF TYPE-IA SUPERNOVAE SN-1990N AND SN-1991T
    JEFFERY, DJ
    LEIBUNDGUT, B
    KIRSHNER, RP
    BENETTI, S
    BRANCH, D
    SONNEBORN, G
    ASTROPHYSICAL JOURNAL, 1992, 397 (01): : 304 - 328
  • [28] SN 2011fu: a type IIb supernova with a luminous double-peaked light curve
    Morales-Garoffolo, A.
    Elias-Rosa, N.
    Bersten, M.
    Jerkstrand, A.
    Taubenberger, S.
    Benetti, S.
    Cappellaro, E.
    Kotak, R.
    Pastorello, A.
    Bufano, F.
    Dominguez, R. M.
    Ergon, M.
    Fraser, M.
    Gao, X.
    Garcia, E.
    Howell, D. A.
    Isern, J.
    Smartt, S. J.
    Tomasella, L.
    Valenti, S.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 454 (01) : 95 - 114
  • [29] Two transitional type Ia supernovae located in the Fornax cluster member NGC 1404: SN 2007on and SN 2011iv
    Gall, C.
    Stritzinger, M. D.
    Ashall, C.
    Baron, E.
    Burns, C. R.
    Hoeflich, P.
    Hsiao, E. Y.
    Mazzali, P. A.
    Phillips, M. M.
    Filippenko, A. V.
    Anderson, J. P.
    Benetti, S.
    Brown, P. J.
    Campillay, A.
    Challis, P.
    Contreras, C.
    Elias de la Rosa, N.
    Folatelli, G.
    Foley, R. J.
    Fraser, M.
    Holmbo, S.
    Marion, G. H.
    Morrell, N.
    Pan, Y. -C.
    Pignata, G.
    Suntzeff, N. B.
    Taddia, F.
    Torres Robledo, S.
    Valenti, S.
    ASTRONOMY & ASTROPHYSICS, 2018, 611
  • [30] SN-1991T - FURTHER EVIDENCE OF THE HETEROGENEOUS NATURE OF TYPE-IA SUPERNOVAE
    PHILLIPS, MM
    WELLS, LA
    SUNTZEFF, NB
    HAMUY, M
    LEIBUNDGUT, B
    KIRSHNER, RP
    FOLTZ, CB
    ASTRONOMICAL JOURNAL, 1992, 103 (05): : 1632 - 1637
12345