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The Identification of the White Dwarf Companion to the Millisecond Pulsar J2317+1439
Dai, S.1; Smith, M. C.2; Wang, S.3; Okamoto, S.2; Xu, R. X.4,5; Yue, Y. L.3; Liu, J. F.3
2017-06-20
发表期刊ASTROPHYSICAL JOURNAL
卷号842期号:2
摘要We report the identification of the optical counterpart to the companion of the millisecond pulsar J2317+1439. At the timing position of the pulsar, we find an object with g = 22.96 +/- 0.05, r = 22.86 +/- 0.04, and i = 22.82 +/- 0.05. The magnitudes and colors of the object are consistent with a white dwarf (WD). Compared with WD cooling models, we estimate that it has a mass of 0.39-(+0.13)(0.10) M-circle dot, an effective temperature of 8077(-470)(+550) K, and a cooling age of 10.9 +/- 0.3Gyr. Combining our results with published constraints on the orbital parameters obtained through pulsar timing, we estimate the pulsar mass to be 3.4(-1.)(+1.4) M-circle dot, Although the constraint on the pulsar mass is still weak, there is a significant possibility that the pulsar could be more massive than two solar masses.
文章类型Article
关键词Pulsars: General Stars: Individual (Psr j2317+1439) White Dwarfs
WOS标题词Science & Technology ; Physical Sciences
资助者National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures")(XDB09000000) ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures")(XDB09000000) ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; CAS One Hundred Talent Fund ; CAS One Hundred Talent Fund ; National Key Basic Research Program of China(2014CB845700) ; National Key Basic Research Program of China(2014CB845700) ; NSFC(11173002 ; NSFC(11173002 ; 11333003 ; 11333003 ; 11673002 ; 11673002 ; U1531243) ; U1531243) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures")(XDB09000000) ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures")(XDB09000000) ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; CAS One Hundred Talent Fund ; CAS One Hundred Talent Fund ; National Key Basic Research Program of China(2014CB845700) ; National Key Basic Research Program of China(2014CB845700) ; NSFC(11173002 ; NSFC(11173002 ; 11333003 ; 11333003 ; 11673002 ; 11673002 ; U1531243) ; U1531243)
DOI10.3847/1538-4357/aa7209
关键词[WOS]DIGITAL SKY SURVEY ; SPECTROSCOPIC ANALYSIS ; PSR J1614-2230 ; EVOLUTION ; MASS ; I. ; DISCOVERY ; DISTANCE ; SPECTRA ; MODELS
收录类别SCI
语种英语
资助者National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures")(XDB09000000) ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures")(XDB09000000) ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; CAS One Hundred Talent Fund ; CAS One Hundred Talent Fund ; National Key Basic Research Program of China(2014CB845700) ; National Key Basic Research Program of China(2014CB845700) ; NSFC(11173002 ; NSFC(11173002 ; 11333003 ; 11333003 ; 11673002 ; 11673002 ; U1531243) ; U1531243) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures")(XDB09000000) ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures")(XDB09000000) ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; CAS One Hundred Talent Fund ; CAS One Hundred Talent Fund ; National Key Basic Research Program of China(2014CB845700) ; National Key Basic Research Program of China(2014CB845700) ; NSFC(11173002 ; NSFC(11173002 ; 11333003 ; 11333003 ; 11673002 ; 11673002 ; U1531243) ; U1531243)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000403775600007
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8824
专题光学天文研究部
作者单位1.CSIRO, Australia Telescope Natl Facil, Astron & Space Sci, Box 76, Epping, NSW 1710, Australia
2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
4.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
5.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
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Dai, S.,Smith, M. C.,Wang, S.,et al. The Identification of the White Dwarf Companion to the Millisecond Pulsar J2317+1439[J]. ASTROPHYSICAL JOURNAL,2017,842(2).
APA Dai, S..,Smith, M. C..,Wang, S..,Okamoto, S..,Xu, R. X..,...&Liu, J. F..(2017).The Identification of the White Dwarf Companion to the Millisecond Pulsar J2317+1439.ASTROPHYSICAL JOURNAL,842(2).
MLA Dai, S.,et al."The Identification of the White Dwarf Companion to the Millisecond Pulsar J2317+1439".ASTROPHYSICAL JOURNAL 842.2(2017).
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