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DOI | 10.1126/science.aam8378 |
An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova | |
Vennes, S.1; Nemeth, P.2,3; Kawka, A.1; Thorstensen, J. R.4; Khalack, V.5; Ferrario, L.6; Alper, E. H.4 | |
2017-08-18 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 357期号:6352页码:680-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Czech Republic; Germany; Hungary; USA; Canada; Australia |
英文摘要 | Subluminous Type Ia supernovae, such as the Type Iax-class prototype SN 2002cx, are described by a variety of models such as the failed detonation and partial deflagration of an accreting carbon-oxygen white dwarf star or the explosion of an accreting, hybrid carbon-oxygen-neon core. These models predict that bound remnants survive such events with, according to some simulations, a high kick velocity. We report the discovery of a high proper motion, low-mass white dwarf (LP 40-365) that travels at a velocity greater than the Galactic escape velocity and whose peculiar atmosphere is dominated by intermediate-mass elements. Strong evidence indicates that this partially burnt remnant was ejected following a subluminous Type Ia supernova event. This supports the viability of single-degenerate supernova progenitors. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407793600033 |
WOS关键词 | EVOLUTION ; MODEL ; HYPERVELOCITY ; BINARIES ; LAMBDA |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196695 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Akad Ceske Republ, Astron Ustav, Fricova 298, CZ-25165 Ondrejov, Czech Republic; 2.Univ Erlangen Nurnberg, Dr Karl Remeis Sternwarte Astron Inst, Sternwartstr 7, D-96049 Bamberg, Germany; 3.Astroserver Org, H-8533 Malomsok, Hungary; 4.Dartmouth Coll, Dept Phys & Astron, 6127 Wilder Lab, Hanover, NH 03755 USA; 5.Univ Moncton, Dept Phys & Astron, Moncton, NB E1A 3E9, Canada; 6.Australian Natl Univ, Math Sci Inst, Canberra, ACT 0200, Australia |
推荐引用方式 GB/T 7714 | Vennes, S.,Nemeth, P.,Kawka, A.,et al. An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova[J]. SCIENCE,2017,357(6352):680-+. |
APA | Vennes, S..,Nemeth, P..,Kawka, A..,Thorstensen, J. R..,Khalack, V..,...&Alper, E. H..(2017).An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova.SCIENCE,357(6352),680-+. |
MLA | Vennes, S.,et al."An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova".SCIENCE 357.6352(2017):680-+. |
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