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No surviving non-compact stellar companion to Cassiopeia A

文献类型：期刊论文

作者Kerzendorf, Wolfgang E.5; Tuan Do6; de Mink, Selma E.2; Gotberg, Ylva2; Milisavljevic, Dan7; Zapartas, Emmanouil2; Renzo, Mathieu2; Justham, Stephen4,8; Podsiadlowski, Philipp1; Fesen, Robert A.3
刊名ASTRONOMY & ASTROPHYSICS
出版日期2019-02-27
卷号623页码:12
关键词supernovae: individual: Cassiopeia A stars: massive binaries: close
ISSN号1432-0746
DOI10.1051/0004-6361/201732206
英文摘要Massive stars in binaries can give rise to extreme phenomena such as X-ray binaries and gravitational wave sources after one or both stars end their lives as core-collapse supernovae. Stars in close orbit around a stellar or compact companion are expected to explode as "stripped-envelope supernovae", showing no (Type Ib/c) or little (Type IIb) signs of hydrogen in the spectra, because hydrogen-rich progenitors are too large to fit. The physical processes responsible for the stripping process and the fate of the companion are still very poorly understood. Aiming to find new clues, we investigate Cas A, which is a very young (similar to 340 yr) and near (similar to 3.4 kpc) remnant of a core-collapse supernova. Cas A has been subject to several searches for possible companions, all unsuccessfully. We present new measurements of the proper motions and photometry of stars in the vicinity based on deep HST ACS/WFC and WFC3-IR data. We identify stellar sources that are close enough in projection but using their proper motions we show that none are compatible with being at the location of center at the time of explosion, in agreement with earlier findings. Our photometric measurements allow us to place much deeper (order-of-magnitude) upper limits on the brightness of possible undetected companions. We systematically compare them with model predictions for a wide variety of scenarios. We can confidently rule out the presence of any stellar companion of any reasonable mass and age (main sequence, pre main sequence or stripped) ruling out what many considered to be likely evolutionary scenarios for Type IIb supernova (SN IIb). More exotic scenarios that predict the presence of a compact companion (white dwarf, neutron star or black hole) are still possible as well as scenarios where the progenitor of Cas A was single at the moment of explosion (either because it was truly single, or resulted from a binary that was disrupted, or from a binary merger). The presence of a compact companion would imply that Cas A is of interest to study exotic outcomes of binary evolution. The single-at-death solution would still require fine-tuning of the process that removed most of the envelope through a mass-loss mechanism yet to be identified. We discuss how future constraints from Gaia and even deeper photometric studies may help to place further constraints.
WOS关键词SUPERNOVA REMNANT ; RUNAWAY STARS ; 3-DIMENSIONAL STRUCTURE ; NEUTRON-STAR ; PROGENITOR ; EVOLUTION ; MASS ; SUPERGIANT ; J1141-6545 ; VELOCITIES
资助项目ESO Fellowship ; H2020 ERC StG 2016 BinCosmos ; National Science Foundation[NSF PHY11-25915] ; National Science Foundation[AST-1238877] ; National Aeronautics and Space Administration[NNX08AR22G]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000459752500001
出版者EDP SCIENCES S A
资助机构ESO Fellowship ; ESO Fellowship ; H2020 ERC StG 2016 BinCosmos ; H2020 ERC StG 2016 BinCosmos ; National Science Foundation ; National Science Foundation ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESO Fellowship ; ESO Fellowship ; H2020 ERC StG 2016 BinCosmos ; H2020 ERC StG 2016 BinCosmos ; National Science Foundation ; National Science Foundation ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESO Fellowship ; ESO Fellowship ; H2020 ERC StG 2016 BinCosmos ; H2020 ERC StG 2016 BinCosmos ; National Science Foundation ; National Science Foundation ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESO Fellowship ; ESO Fellowship ; H2020 ERC StG 2016 BinCosmos ; H2020 ERC StG 2016 BinCosmos ; National Science Foundation ; National Science Foundation ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration
源URL[http://ir.bao.ac.cn/handle/114a11/25119]  
专题中国科学院国家天文台
通讯作者Kerzendorf, Wolfgang E.
作者单位1.Univ Oxford, Dept Astrophys, Keble Rd, Oxford OX1 3RH, England
2.Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1090 GE Amsterdam, Netherlands
3.Dartmouth Coll, Dept Phys & Astron, Wilder Lab 6127, Hanover, NH 03755 USA
4.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
5.European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
6.Univ Calif Los Angeles, Galact Ctr Grp, Dept Phys & Astron, Los Angeles, CA 90095 USA
7.Purdue Univ, Dept Phys & Astron, 525 Northwestern Ave, W Lafayette, IN 47907 USA
8.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Kerzendorf, Wolfgang E.,Tuan Do,de Mink, Selma E.,et al. No surviving non-compact stellar companion to Cassiopeia A[J]. ASTRONOMY & ASTROPHYSICS,2019,623:12.
APA Kerzendorf, Wolfgang E..,Tuan Do.,de Mink, Selma E..,Gotberg, Ylva.,Milisavljevic, Dan.,...&Fesen, Robert A..(2019).No surviving non-compact stellar companion to Cassiopeia A.ASTRONOMY & ASTROPHYSICS,623,12.
MLA Kerzendorf, Wolfgang E.,et al."No surviving non-compact stellar companion to Cassiopeia A".ASTRONOMY & ASTROPHYSICS 623(2019):12.

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