Probing the final-stage progenitor evolution for Type IIP Supernova 2017eaw in NGC 6946

doi:10.1093/mnras/stz503

CORC > 国家天文台 > 中国科学院国家天文台

	Probing the final-stage progenitor evolution for Type IIP Supernova 2017eaw in NGC 6946
	Rui, Liming 1,2; Wang, Xiaofeng 1,2; Mo, Jun 1,2; Xiang, Danfeng 1,2; Zhang, Jujia 3,4; Maund, Justyn R.5; Gal-Yam, Avishy 6; Wang, Lifan 7; Zhang, Tianmeng 8
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2019-05-01
卷号	485 期号:2 页码:1990-2000
关键词	stars: evolution supernovae: general supernovae: individual: SN 2017eaw galaxies: individual: NGC 6946
ISSN号	0035-8711
DOI	10.1093/mnras/stz503
英文摘要	We presented a detailed analysis of progenitor properties of type IIP supernova 2017eaw in NGC 6946, based on the pre-explosion images and early-time observations obtained immediately after the explosion. An unusually red star, with M-F814W =-6.9 mag and mF606W -m(F814W) = 2.9 +/- 0.2 mag, can be identified at the SN position in the pre-discovery Hubble Space Telescope (HST) images taken in 2016. The observed spectral energy distribution of this star, covering the wavelength of 0.6-2.0 mu m, matches that of an M4-type red supergiant (RSG) with a temperature of about 3550 K. These results suggest that SN 2017eaw has a RSG progenitor with an initial mass of 12 +/- 2 M-circle dot. The absolute F814W-band magnitude of this progenitor star is found to evolve from -7.2 mag in 2004 to -6.9 mag in 2016. Such a dimming effect is, however, unpredicted for an RSG in its neon/oxygen burning phase when its luminosity should modestly increase. The spectrum of SN 2017eaw taken a few hours after discovery clearly shows a narrow H-alpha emission feature blueshifted by similar to 160 km s(-1). This narrow component disappeared in the spectrum taken two days later, suggesting the presence of a circumstellar material (CSM) shell (i.e. at a distance of < 2.1-4.3 x 10(14) cm). Combining the inferred distance with the expansion velocity of the CSM, we suggest that the progenitor of SN 2017eaw should have experienced violent mass-loss at about 1-2 yr prior to explosion, perhaps invoked by pulsational envelop ejection. This mechanism may help explain its luminosity decline in 2016 as well as the lack of detections of RSGs with relatively higher initial mass as progenitors of SNe IIP.
资助项目	National Natural Science Foundation of China (NSFC)[11325313] ; National Natural Science Foundation of China (NSFC)[11633002] ; National Natural Science Foundation of China (NSFC)[11761141001] ; National Program on Key Research and Development Project[2016YFA0400803] ; NSFC[11203034] ; NSFC[11403096] ; NSFC[11773067] ; Youth Innovation Promotion Association of the CAS[2018081] ; Western Light Youth Project ; Key Research Program of the CAS[KJZD-EW-M06] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Royal Society University Research Fellowship
WOS关键词	RED SUPERGIANTS ; SHOCK BREAKOUT ; MASSIVE STARS ; P SUPERNOVA ; RISE ; COOL
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000474886200036
资助机构	National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; Western Light Youth Project ; Western Light Youth Project ; Key Research Program of the CAS ; Key Research Program of the CAS ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; Western Light Youth Project ; Western Light Youth Project ; Key Research Program of the CAS ; Key Research Program of the CAS ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; Western Light Youth Project ; Western Light Youth Project ; Key Research Program of the CAS ; Key Research Program of the CAS ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; Western Light Youth Project ; Western Light Youth Project ; Key Research Program of the CAS ; Key Research Program of the CAS ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/26966]
专题	中国科学院国家天文台
通讯作者	Rui, Liming; Wang, Xiaofeng
作者单位	1.Tsinghua Univ, Phys Dept, Beijing 100084, Peoples R China 2.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 3.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China 4.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Yunnan, Peoples R China 5.Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England 6.Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel 7.Texas A&M Univ, Phys & Astron Dept, College Stn, TX 77843 USA 8.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Rui, Liming,Wang, Xiaofeng,Mo, Jun,et al. Probing the final-stage progenitor evolution for Type IIP Supernova 2017eaw in NGC 6946[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,485(2):1990-2000.
APA	Rui, Liming.,Wang, Xiaofeng.,Mo, Jun.,Xiang, Danfeng.,Zhang, Jujia.,...&Zhang, Tianmeng.(2019).Probing the final-stage progenitor evolution for Type IIP Supernova 2017eaw in NGC 6946.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,485(2),1990-2000.
MLA	Rui, Liming,et al."Probing the final-stage progenitor evolution for Type IIP Supernova 2017eaw in NGC 6946".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 485.2(2019):1990-2000.