Are soft γ-ray repeaters strange stars?

被引:54
作者
Cheng, KS [1 ]
Dai, ZG
机构
[1] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong
[2] Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China
关键词
D O I
10.1103/PhysRevLett.80.18
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The soft gamma-ray repeaters (SGRs) are proposed to result from young, magnetized strange stars with superconducting cores. As such a strange star spins down, the quantized vortex lines move outward and drag the magnetic flux tubes because of the strong coupling between them. Since the terminations of the tubes interact with the stellar crust, the dragged tubes can produce sufficient tension to crack the crust and pull parts of the broken platelet into the quark core. The deconfinement of crustal matter into strange quark matter will release energy. The model burst energy, duration, time interval, spectrum, and the persistent x-ray emission from SGRs are shown to be in agreement with observed results.
引用
收藏
页码:18 / 21
页数:4
相关论文
共 37 条
[1]   STRANGE STARS [J].
ALCOCK, C ;
FARHI, E ;
OLINTO, A .
ASTROPHYSICAL JOURNAL, 1986, 310 (01) :261-272
[2]   MODEL FOR THE 5 MARCH 1979 GAMMA-RAY TRANSIENT [J].
ALCOCK, C ;
FARHI, E ;
OLINTO, A .
PHYSICAL REVIEW LETTERS, 1986, 57 (16) :2088-2091
[3]   COMMENT ON STRANGE STARS [J].
ALPAR, MA .
PHYSICAL REVIEW LETTERS, 1987, 58 (20) :2152-2152
[4]   SUPERFLUIDITY AND SUPERCONDUCTIVITY IN RELATIVISTIC FERMION SYSTEMS [J].
BAILIN, D ;
LOVE, A .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1984, 107 (06) :325-385
[5]  
Benvenuto O. G., 1991, Nuclear Physics B, Proceedings Supplements, V24B, P160, DOI 10.1016/0920-5632(91)90317-8
[6]   EVIDENCE AGAINST A STRANGE GROUND-STATE FOR BARYONS [J].
CALDWELL, RR ;
FRIEDMAN, JL .
PHYSICS LETTERS B, 1991, 264 (1-2) :143-148
[7]   IMPLICATIONS OF P-3(2) SUPERFLUIDITY IN THE INTERIOR OF NEUTRON-STARS [J].
CHAU, HF ;
CHENG, KS ;
DING, KY .
ASTROPHYSICAL JOURNAL, 1992, 399 (01) :213-217
[8]   On the rotation and magnetic field evolution of superconducting strange stars [J].
Chau, HF .
ASTROPHYSICAL JOURNAL, 1997, 479 (02) :886-901
[9]   Conversion of neutron stars to strange stars as a possible origin of gamma-ray bursts [J].
Cheng, KS ;
Dai, ZG .
PHYSICAL REVIEW LETTERS, 1996, 77 (07) :1210-1213
[10]   PRECISE SOURCE LOCATION OF THE ANOMALOUS 1979 MARCH 5 GAMMA-RAY TRANSIENT [J].
CLINE, TL ;
DESAI, UD ;
TEEGARDEN, BJ ;
EVANS, WD ;
KLEBESADEL, RW ;
LAROS, JG ;
BARAT, C ;
HURLEY, K ;
NIEL, M ;
VEDRENNE, G ;
ESTULIN, IV ;
KURT, VG ;
MERSOV, GA ;
ZENCHENKO, VM ;
WEISSKOPF, MC ;
GRINDLAY, J .
ASTROPHYSICAL JOURNAL, 1982, 255 (01) :L45-L48