中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Probing the physics of newly born magnetars through observation of superluminous supernovae

文献类型:期刊论文

作者Cheng, Quan1,2; Zhang, Shuang-Nan2,4; Yu, Yun-Wei3; Zheng, Xiao-Ping3,5
刊名Physical review d
出版日期2018-05-21
卷号97期号:10页码:10
ISSN号2470-0010
DOI10.1103/physrevd.97.103012
通讯作者Cheng, quan(qcheng@ihep.ac.cn)
英文摘要The central engines of some superluminous supernovae (slsne) are generally suggested to be newly born fast rotating magnetars, which spin down mainly through magnetic dipole radiation and gravitational wave emission. we calculate the magnetar-powered slsne light curves (lcs) with the tilt angle evolution of newly born magnetars involved. we show that, depending on the internal toroidal magnetic fields (()<(b)overbar>(t) the initial spin periods p-i,p-a and the radii (du:) of direct urea (du) cores of newly brnm magnetars, as well as the critical temperature t-c for3(p2) neutron superfluidity, bumps could appear in the slsne lcs after the maximum lights when the tilt angles grow to pi n/2. the value of t-c determines the arising time and the relative amplitude of a bump. the quantity can affect the arising time and the luminosity of a bump, as well as the peak luminosity of a lc. for newly born magnetars with dipole magnetic fields b-d = 5 x 10(14) g,<(b)overbar>(t) = 4.6x 1(01)6g, and (i); = 1 ms, there arc no bumps in the lcs ift(c).=2x 1(0)9k, o r-dc- = 1.5 x10(5)pcm. moreover, it is interesting that a stronger b, will lead to both a brighter peak and a brighter bump in a lc. while keeping other quantities unchanged, the bump in the lc disappears for the magnetar with smaller (i).(v) we suggest that, once the slsne lcs with such kinds of bumps are observed, by fitting these lcs with our model, not only b-d and (i); of newly born magnetars but also the crucial physical quantities<(b)overbar>(t),r-pdu, and (cc) could be determined. nonobservation of slsne lcs with such kinds of bumps hitherto may already put some (though very rough) constraints on<(b)overbar>(t), r-i,7(pdu), and t-c. therefore, observation of slsne lcs may provide a new approach to probe the physics of newly born magnetars.
WOS关键词GAMMA-RAY BURSTS ; CORE-COLLAPSE SUPERNOVAE ; MAGNETIZED NEUTRON-STARS ; DIRECT URCA PROCESS ; EQUATION-OF-STATE ; MAGNETOROTATIONAL INSTABILITY ; GRAVITATIONAL-RADIATION ; LUMINOUS SUPERNOVAE ; PROTONEUTRON STARS ; EXTENDED EMISSION
WOS研究方向Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000433033900005
URI标识http://www.irgrid.ac.cn/handle/1471x/2177544
专题高能物理研究所
通讯作者Cheng, Quan
作者单位1.Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
3.Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Hubei, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Hubei Univ Educ, Sch Phys & Mech & Elect Engn, Wuhan 430205, Hubei, Peoples R China
推荐引用方式
GB/T 7714
Cheng, Quan,Zhang, Shuang-Nan,Yu, Yun-Wei,et al. Probing the physics of newly born magnetars through observation of superluminous supernovae[J]. Physical review d,2018,97(10):10.
APA Cheng, Quan,Zhang, Shuang-Nan,Yu, Yun-Wei,&Zheng, Xiao-Ping.(2018).Probing the physics of newly born magnetars through observation of superluminous supernovae.Physical review d,97(10),10.
MLA Cheng, Quan,et al."Probing the physics of newly born magnetars through observation of superluminous supernovae".Physical review d 97.10(2018):10.

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