The eccentric binary millisecond pulsar in NGC 1851

被引：0
|
作者：
Freire, Paulo C. C.
Ransom, Scott M.
Gupta, Yashwant
机构：
来源：
40 YEARS OF PULSARS: MILLISECOND PULSARS, MAGNETARS AND MORE | 2007年 / 983卷
关键词：
millisecond pulsars; binary pulsars; precision timing;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
PSR J0514-4002A is a 5-ms pulsar is located in the globular cluster NGC 185 1; it belongs to a highly eccentric (e = 0.888) binary system. It is one of the earliest known examples of a numerous and fast-growing class of eccentric binary MSPs recently discovered in globular clusters. Using the GBT, we have obtained a phase-coherent timing solution for the pulsar, which includes a measurement of the rate of advance of periastron (omega) over dot = 0.01289(4)degrees yr(-1), which if due completely to general relativity, implies a total system mass of 2.453(14)M-circle dot; we also derive m(p) 1.5M(circle dot) and m(c) 0.96M(circle dot). The companion is likely to be a massive white dwarf star.
引用
收藏
页码：491 / 493
页数：3
相关论文
共 50 条
  • [21] WHAT IS CAUSING THE ECLIPSE IN THE MILLISECOND BINARY PULSAR
    RASIO, FA
    SHAPIRO, SL
    TEUKOLSKY, SA
    ASTROPHYSICAL JOURNAL, 1989, 342 (02): : 934 - 939
  • [22] NEW MILLISECOND PULSAR IN A BINARY-SYSTEM
    SEGELSTEIN, DJ
    RAWLEY, LA
    STINEBRING, DR
    FRUCHTER, AS
    TAYLOR, JH
    NATURE, 1986, 322 (6081) : 714 - 717
  • [23] Transformation of a Star into a Planet in a Millisecond Pulsar Binary
    Bailes, M.
    Bates, S. D.
    Bhalerao, V.
    Bhat, N. D. R.
    Burgay, M.
    Burke-Spolaor, S.
    D'Amico, N.
    Johnston, S.
    Keith, M. J.
    Kramer, M.
    Kulkarni, S. R.
    Levin, L.
    Lyne, A. G.
    Milia, S.
    Possenti, A.
    Spitler, L.
    Stappers, B.
    van Straten, W.
    SCIENCE, 2011, 333 (6050) : 1717 - 1720
  • [24] EVOLUTION OF A MILLISECOND BINARY PULSAR IN THE PERIOD GAP
    FEDOROVA, AV
    ERGMA, EV
    SOVIET ASTRONOMY LETTERS, 1991, 17 (06): : 419 - 422
  • [25] Observations of a new eclipsing binary millisecond pulsar
    Stappers, BW
    PULSARS: PROBLEMS AND PROGRESS, 1996, 105 : 517 - 520
  • [26] Probing the eclipse region of a binary millisecond pulsar
    Stappers, BW
    Bailes, M
    Lyne, AG
    Manchester, RN
    DAmico, N
    Tauris, TM
    Lorimer, DR
    Johnston, S
    Sandhu, JS
    ASTROPHYSICAL JOURNAL, 1996, 465 (02): : L119 - L122
  • [27] The bright optical companion to the eclipsing millisecond pulsar in NGC 6397
    Ferraro, FR
    Possenti, A
    D'Amico, N
    Sabbi, E
    ASTROPHYSICAL JOURNAL, 2001, 561 (01): : L93 - L96
  • [28] The chemical composition of the peculiar companion to the millisecond pulsar in NGC 6397
    Sabbi, E. (sabbi@bo.astro.it), 1600, EDP Sciences (412):
  • [29] The chemical composition of the peculiar companion to the millisecond pulsar in NGC 6397
    Sabbi, E
    Gratton, RG
    Bragaglia, A
    Ferraro, FR
    Possenti, A
    Camilo, F
    D'Amico, N
    ASTRONOMY & ASTROPHYSICS, 2003, 412 (03) : 829 - 836
  • [30] Upgraded GMRT survey for pulsars in globular clusters I. Discovery of a millisecond binary pulsar in NGC 6652
    Gautam, T.
    Ridolfi, A.
    Freire, P. C. C.
    Wharton, R. S.
    Gupta, Y.
    Ransom, S. M.
    Oswald, L. S.
    Kramer, M.
    DeCesar, M. E.
    ASTRONOMY & ASTROPHYSICS, 2022, 664
12345