YNAO OpenIR  > 丽江天文观测站(南方基地)
THE OXYGEN FEATURES IN TYPE Ia SUPERNOVAE AND IMPLICATIONS FOR THE NATURE OF THERMONUCLEAR EXPLOSIONS
Zhao, Xulin1,2,3; Maeda, Keiichi2,4; Wang, Xiaofeng1; Wang, Lifan5; Sai, Hanna1; Zhang JJ(张居甲)6,7; Zhang, Tianmeng8; Huang, Fang1; Rui, Liming1; Zhao, XL
发表期刊ASTROPHYSICAL JOURNAL
2016-08-01
卷号826期号:2
DOI10.3847/0004-637X/826/2/211
产权排序第6完成单位
收录类别SCI
关键词Methods: Data Analysis Supernovae: General Techniques: Spectroscopic
摘要The absorption feature OI lambda 7773 is an important spectral indicator for type Ia supernovae (SNe Ia) that can be used to trace the unburned material in outer layers of the exploding white dwarf (WD). In this work, we use a large sample of SNe Ia to examine this absorption at early phases (i.e., -13 day less than or similar to t less than or similar to -7 day) and make comparisons with the absorption features of Si II lambda 6355 and the Ca II near-infrared triplet. We show that for a subgroup of spectroscopically normal SNe with normal photospheric velocities (i.e., v(si) less than or similar to 12,500 km s(-1) at optical maximum), the line strength of the high velocity feature (HVF) of O I is inversely correlated with that of Si II (or Ca II), and this feature also shows a negative correlation with the luminosity of SNe Ia. This finding, together with other features we find for the O I HVF, reveal that for this subgroup of SNe Ia, explosive oxygen burning occurs in the outermost layer of the SN. Differences in the oxygen burning could lead to the observed diversity, which is in remarkable agreement with the popular delayed-detonation model of Chandrasekhar mass WDs.
项目资助者Major State Basic Research Development Program(2013CB834903) ; National Natural Science Foundation of China (NSFC)(11178003, 11325313) ; China Scholarship Council(CSC 201406210312) ; JSPS(26800100) ; World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan ; Key Research Program of the CAS(KJZD-EW-M06) ; Western Light Youth Project of CAS ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; US National Science Foundation(AST 0907903) ; US National Science Foundation
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
WOS记录号WOS:000381977900111
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]HIGH-VELOCITY FEATURES ; DELAYED-DETONATION MODEL ; PHOTOMETRY DATA RELEASE ; WHITE-DWARF MODELS ; LIGHT CURVES ; SN 2011FE ; CIRCUMSTELLAR MATERIAL ; SPECTROSCOPIC DIVERSITY ; OPTICAL OBSERVATIONS ; EARLY ULTRAVIOLET
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9719
专题丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
通讯作者Zhao, XL
作者单位1.Physics Department and Tsinghua Center for Astrophysics, Tsinghua University, Beijing, 100084, China
2.Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
3.School of Science, Tianjin University of Technology, Tianjin, 300384, China
4.Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan
5.Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA
6.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China
7.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
8.National Astronomical Observatory of China, Chinese Academy of Sciences, Beijing, 100012, China
推荐引用方式
GB/T 7714
Zhao, Xulin,Maeda, Keiichi,Wang, Xiaofeng,et al. THE OXYGEN FEATURES IN TYPE Ia SUPERNOVAE AND IMPLICATIONS FOR THE NATURE OF THERMONUCLEAR EXPLOSIONS[J]. ASTROPHYSICAL JOURNAL,2016,826(2).
APA Zhao, Xulin.,Maeda, Keiichi.,Wang, Xiaofeng.,Wang, Lifan.,Sai, Hanna.,...&Zhao, XL.(2016).THE OXYGEN FEATURES IN TYPE Ia SUPERNOVAE AND IMPLICATIONS FOR THE NATURE OF THERMONUCLEAR EXPLOSIONS.ASTROPHYSICAL JOURNAL,826(2).
MLA Zhao, Xulin,et al."THE OXYGEN FEATURES IN TYPE Ia SUPERNOVAE AND IMPLICATIONS FOR THE NATURE OF THERMONUCLEAR EXPLOSIONS".ASTROPHYSICAL JOURNAL 826.2(2016).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
THE OXYGEN FEATURES (1607KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhao, Xulin]的文章
[Maeda, Keiichi]的文章
[Wang, Xiaofeng]的文章
百度学术
百度学术中相似的文章
[Zhao, Xulin]的文章
[Maeda, Keiichi]的文章
[Wang, Xiaofeng]的文章
必应学术
必应学术中相似的文章
[Zhao, Xulin]的文章
[Maeda, Keiichi]的文章
[Wang, Xiaofeng]的文章
相关权益政策
暂无数据
收藏/分享
文件名: THE OXYGEN FEATURES IN TYPE Ia SUPERNOVAE AND IMPLICATIONS FOR THE NATURE OF THERMONUCLEAR EXPLOSIONS.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。