A spectral data release for 104 type II supernovae from the Tsinghua Supernova group

doi:10.1093/mnras/stae144

	A spectral data release for 104 type II supernovae from the Tsinghua Supernova group
	Lin H(林含)8,14,15,16; Wang, Xiaofeng 8; Zhang JJ(张居甲)15,16,17; Yan, Shengyu 8; Xiang, Danfeng 8; Zhang, Tianmeng 9,18,19; Zhao, Xulin 20; Zhang, Xinghan 10; Sai, Hanna 8; Rui, Liming 8
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2024-01-23
卷号	528 期号:2 页码:3092-3129
关键词	techniques: spectroscopic surveys supernovae: general
ISSN号	0035-8711
DOI	10.1093/mnras/stae144
产权排序	第3完成单位
文献子类	Article
英文摘要	We present 206 unpublished optical spectra of 104 type II supernovae (SNe II) obtained by the Xinglong 2.16-m telescope and Lijiang 2.4-m telescope during the period from 2011 to 2018, spanning the phases from about 1 to 200 d after the SN explosion. The spectral line identifications, evolution of line velocities and pseudo-equivalent widths, as well as correlations between some important spectral parameters are presented. Our sample displays a large range in expansion velocities. For instance, the Fe II 5169 velocities measured from spectra at t similar to 50 d after the explosion vary from 2000 to 5500 km s(-1), with an average value of 3872 +/- 949 km s(-1). Power-law functions can be used to fit the velocity evolution, with the power-law exponent quantifying the velocity decline rate. We found an anticorrelation existing between H velocity at mid-plateau phase and its velocity decay exponent, SNe II with higher velocities tending to have smaller velocity decay rate. Moreover, we noticed that the velocity decay rate inferred from the Balmer lines (i.e. H alpha and H beta) have moderate correlations with the ratio of absorption to emission for H alpha (a/e). In our sample, two objects show possibly flash-ionized features at early phases. Besides, we noticed that multiple high-velocity components may exist on the blue side of hydrogen lines of SN 2013ab, possibly suggesting that these features arise from complex line-forming region.
学科主题	天文学
URL标识	查看原文
出版地	GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
资助项目	Tencent Xplorer Prize; National Key R&D Program of China[2021YFA1600404]; National Natural Science Foundation of China (NSFC)[12288102]; National Natural Science Foundation of China (NSFC)[12033002]; National Natural Science Foundation of China (NSFC)[11633002]; National Natural Science Foundation of China (NSFC)[12303054]; National Natural Science Foundation of China[12173082]; National Natural Science Foundation of China[12090041]; National Natural Science Foundation of China[12090040]; Yunnan Province Foundation[202201AT070069]; Top-notch Young Talents Program of Yunnan Province; Light of West China Program by the Chinese Academy of Sciences; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001]; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0550100]; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences; Chinese Academy of Sciences; Peoples Government of Yunnan Province
WOS关键词	RED SUPERGIANT PROGENITOR ; LIGHT-CURVES ; CIRCUMSTELLAR INTERACTION ; I. OBSERVATIONS ; SN 2005CS ; SAMPLE ; PHOTOMETRY ; EXPLOSION ; EVOLUTION ; 2017EAW
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:001156520800053
资助机构	Tencent Xplorer Prize ; National Key R&D Program of China[2021YFA1600404] ; National Natural Science Foundation of China (NSFC)[12288102, 12033002, 11633002, 12303054] ; National Natural Science Foundation of China[12173082, 12090041, 12090040] ; Yunnan Province Foundation[202201AT070069] ; Top-notch Young Talents Program of Yunnan Province ; Light of West China Program by the Chinese Academy of Sciences ; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0550100] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; Peoples Government of Yunnan Province
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26541]
专题	云南天文台_大样本恒星演化研究组
作者单位	1.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; 2.Schools of Electronics and Information Engineering, Wuzhou University , Wuzhou 543002, China; 3.Department of Astronomy, School of Physics and Astronomy, Yunnan University, Kunming 650091, China; 4.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; 5.Department of Astronomy, School of Physics, Peking University, Beijing 100871, China; 6.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China; 7.College of Physics, Guizhou University, Guiyang 550025, China 8.Physics Department, Tsinghua University, Beijing 100084, China; 9.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408, China; 10.School of Physics and Information Engineering, Jiangsu Second Normal University, Nanjing, Jiangsu 211200, China;
推荐引用方式 GB/T 7714	Lin H,Wang, Xiaofeng,Zhang JJ,et al. A spectral data release for 104 type II supernovae from the Tsinghua Supernova group[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,528(2):3092-3129.
APA	林含.,Wang, Xiaofeng.,张居甲.,Yan, Shengyu.,Xiang, Danfeng.,...&翟倩.(2024).A spectral data release for 104 type II supernovae from the Tsinghua Supernova group.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,528(2),3092-3129.
MLA	林含,et al."A spectral data release for 104 type II supernovae from the Tsinghua Supernova group".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 528.2(2024):3092-3129.