The optical properties of three Type II supernovae: 2014cx, 2014cy, and 2015cz
Dastidar, R.9,17; Misra, K.9; Singh, M.9,18; Pastorello, A.1; Sahu, D. K.2; Wang, X.3,4; Gangopadhyay, A.5,9; Tomasella, L.1; Zhang JJ(张居甲)7,10; Bose, S.11,12
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2021-06
卷号504期号:1页码:1009-1028
关键词techniques: photometric techniques: spectroscopic supernovae: general supernovae: individual: SN 2014cx, SN 2014cy, SN 2015cz galaxies: individual: NGC 337, NGC 7742, NGC 582
ISSN号0035-8711
DOI10.1093/mnras/stab831
产权排序第9完成单位
文献子类Article
英文摘要

We present the photometric and spectroscopic analysis of three Type II supernovae (SNe): 2014cx, 2014cy, and 2015cz. SN 2014cx is a conventional Type IIP with shallow slope (0.2 mag/50 d) and an atypical short plateau (similar to 86 d). SNe 2014cy and 2015cz show relatively large decline rates (0.88 and 1.64 mag/50 d, respectively) at early times before settling to the plateau phase, unlike the canonical Type IIP/L SN light curves. All of them are normal luminosity SN II with an absolute magnitude at mid-plateau of M-V,14cx(50) = -16.6 +/- 0.4 mag, M-V,14cy(50) = -16.5 +/- 0.2 mag, and M-V,15cz(50) = -17.4 +/- 0.3 mag. A relatively broad range of Ni-56 masses is ejected in these explosions (0.027-0.070M(circle dot)). The spectra shows the classical evolution of SNe II, dominated by a blue continuum with broad H lines at early phases and narrower metal lines with PCygni profiles during the plateau. High-velocity H I features are identified in the plateau spectra of SN 2014cx at 11 600 kms(-1), possibly a sign of ejecta-circumstellar interaction. The spectra of SN 2014cy exhibit strong absorption profile of HI similar to normal luminosity events whereas strong metal lines akin to sub-luminous SNe. The analytical modelling of the bolometric light curve of the three events yields similar progenitor radii within errors (478, 507, and 660 R-circle dot for SNe 2014cx, 2014cy, and 2015cz, respectively), a range of ejecta masses (15.0, 22.2, and 20.6M(circle dot) for SNe 2014cx, 2014cy, and 2015cz), and a modest range of explosion energies (3.3-7.2 foe where 1 foe=10(51) erg).

学科主题天文学 ; 天体物理学 ; 实测天体物理学 ; 恒星与银河系 ; 恒星天文学
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出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
资助项目National Aeronautics and Space AdministrationNational Aeronautics & Space Administration (NASA) ; National Development and Reform Commission ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11325313] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11633002] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11761141001] ; National Program on Key Research and Development Project[2016YFA0400803] ; BRICS (Brazil, Russia, India, China, and South Africa) grant[DST/IMRCD/BRICS/Pilotcall/ProFCheap/2017(G)] ; DST/JSPS (Japan Society for the Promotion of Science)Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science[DST/INT/JSPS/P/281/2018]
WOS关键词LIGHT-CURVES ; PHYSICAL-PROPERTIES ; SN 1999EM ; METALLICITY ; ABUNDANCES ; GALAXIES ; DISTANCE ; MODEL
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000656137100073
资助机构National Aeronautics and Space AdministrationNational Aeronautics & Space Administration (NASA) ; National Development and Reform Commission ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11325313, 11633002, 11761141001] ; National Program on Key Research and Development Project[2016YFA0400803] ; BRICS (Brazil, Russia, India, China, and South Africa) grant[DST/IMRCD/BRICS/Pilotcall/ProFCheap/2017(G)] ; DST/JSPS (Japan Society for the Promotion of Science)Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science[DST/INT/JSPS/P/281/2018]
内容类型期刊论文
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/24440]  
专题云南天文台_丽江天文观测站(南方基地)
通讯作者Dastidar, R.
作者单位1.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, I-35122 Padova, Italy;
2.Indian Institute of Astrophysics, Koramangala, Bangalore 560 034, India;
3.Physics Department and Tsinghua Center for Astrophysics, Tsinghua University, Beijing 100084, China;
4.Beijing Planetarium, Beijing Academy of Sciences and Technology, Beijing 100044, China;
5.Pt. Ravi Shankar Shukla University, Raipur 492 010, India;
6.Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University,;
7.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China;
8.Department of Astronomy and The Oskar Klein Centre, AlbaNova University Centre, Stockholm University, SE-106 91 Stockholm, Sweden;
9.Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital 263 001, India;
10.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China;
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Dastidar, R.,Misra, K.,Singh, M.,et al. The optical properties of three Type II supernovae: 2014cx, 2014cy, and 2015cz[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,504(1):1009-1028.
APA Dastidar, R..,Misra, K..,Singh, M..,Pastorello, A..,Sahu, D. K..,...&Huang, F..(2021).The optical properties of three Type II supernovae: 2014cx, 2014cy, and 2015cz.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,504(1),1009-1028.
MLA Dastidar, R.,et al."The optical properties of three Type II supernovae: 2014cx, 2014cy, and 2015cz".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 504.1(2021):1009-1028.
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