The minimum magnetic field of millisecond pulsars calculated according to accretion: application to the X-ray neutron star SAX J1808.4-3658 in a low-mass X-ray binary

doi:10.1093/mnras/sty1851

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	The minimum magnetic field of millisecond pulsars calculated according to accretion: application to the X-ray neutron star SAX J1808.4-3658 in a low-mass X-ray binary
	Pan, YY; Zhang, CM; Song LM(宋黎明); Yang, YY; Song, LM; Wang, N; Li, D
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2018
卷号	480 期号:1 页码:692-696
关键词	stars: neutron < stars X-rays: binaries (stars): pulsars: general accretion, accretion discs
ISSN号	0035-8711
DOI	10.1093/mnras/sty1851
文献子类	Article
英文摘要	Based on the model of the accretion-induced magnetic field decay of a neutron star (NS), millisecond pulsars (MSPs) will obtain their minimum magnetic field when the NS magneto-sphere radius shrinks to the stellar surface during the binary accretion phase. We find that this minimum magnetic field is related to the accretion rate. (M) over dot as B-min similar to 2.0 x 10(7) G((M) over dot/(M) over dot min) 1/2, where (M) over dot(min) = 4.6 x 10(15) g s(-1) is the average minimum accretion rate required for MSP formation and is constrained by the long-term accretion time, which corresponds to the companion lifetime, being less than the Hubble time. The value of Bmin is consistent with that of observed radio MSPs and accreting MSPs in low-mass X-ray binaries, which can be found the illustrated case of the minimum and present field strength of SAX J1808.4-3658. The prediction of the minimum magnetic field of MSPs would be the lowest field strength of NSs in the Universe, which could constrain the evolution mechanism of the magnetic field of accreting NSs.
电子版国际标准刊号	1365-2966
WOS关键词	RADIO PULSARS ; EVOLUTION ; SPIN ; SAX-J1808.4-3658 ; OSCILLATIONS ; OUTBURST ; DECAY ; ORBIT
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000442567900050
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286254]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Pan, YY,Zhang, CM,Song LM,et al. The minimum magnetic field of millisecond pulsars calculated according to accretion: application to the X-ray neutron star SAX J1808.4-3658 in a low-mass X-ray binary[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,480(1):692-696.
APA	Pan, YY.,Zhang, CM.,宋黎明.,Yang, YY.,Song, LM.,...&Li, D.(2018).The minimum magnetic field of millisecond pulsars calculated according to accretion: application to the X-ray neutron star SAX J1808.4-3658 in a low-mass X-ray binary.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,480(1),692-696.
MLA	Pan, YY,et al."The minimum magnetic field of millisecond pulsars calculated according to accretion: application to the X-ray neutron star SAX J1808.4-3658 in a low-mass X-ray binary".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 480.1(2018):692-696.