Microlensing by noncompact objects

被引：5
作者：
Zakharov, AF [1 ]
Sazhin, MV [1 ]
机构：
[1] PK SHTERNBERG ASTRON INST,MOSCOW 117234,RUSSIA
来源：
JETP LETTERS | 1996年 / 63卷 / 12期
关键词：
D O I：
10.1134/1.567124
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Microlensing of background stars by neutralino stars, which were proposed in a recent work by Gurevich and Zybin as the component making the main contribution to the dark matter, is studied. The optics of such a gravitational microlens - the equation of the lens, the solution of this equation, the intensification of images, and the critical and caustic curves - are analyzed in detail in a quite simple approximation. A set of different values of the parameters of the problem is studied. (C) 1996 American Institute of Physics.
引用
收藏
页码：937 / 943
页数：7
相关论文
共 24 条
  • [1] POSSIBLE GRAVITATIONAL MICROLENSING OF A STAR IN THE LARGE MAGELLANIC CLOUD
    ALCOCK, C
    AKERLOF, CW
    ALLSMAN, RA
    AXELROD, TS
    BENNETT, DP
    CHAN, S
    COOK, KH
    FREEMAN, KC
    GRIEST, K
    MARSHALL, SL
    PARK, HS
    PERLMUTTER, S
    PETERSON, BA
    PRATT, MR
    QUINN, PJ
    RODGERS, AW
    STUBBS, CW
    SUTHERLAND, W
    [J]. NATURE, 1993, 365 (6447) : 621 - 623
  • [2] EVIDENCE FOR GRAVITATIONAL MICROLENSING BY DARK OBJECTS IN THE GALACTIC HALO
    AUBOURG, E
    BAREYRE, P
    BREHIN, S
    GROS, M
    LACHIEZEREY, M
    LAURENT, B
    LESQUOY, E
    MAGNEVILLE, C
    MILSZTAJN, A
    MOSCOSO, L
    QUEINNEC, F
    RICH, J
    SPIRO, M
    VIGROUX, L
    ZYLBERAJCH, S
    ANSARI, R
    CAVALIER, F
    MONIEZ, M
    BEAULIEU, JP
    FERLET, R
    GRISON, P
    VIDALMADJAR, A
    GUIBERT, J
    MOREAU, O
    TAJAHMADY, F
    MAURICE, E
    PREVOT, L
    GRY, C
    [J]. NATURE, 1993, 365 (6447) : 623 - 625
  • [3] THE GALACTIC SPHEROID
    BAHCALL, JN
    SCHMIDT, M
    SONEIRA, RM
    [J]. ASTROPHYSICAL JOURNAL, 1983, 265 (02) : 730 - 747
  • [4] Blair D. G., 1993, Astronomical and Astrophysical Transactions, V3, P191, DOI 10.1080/10556799308230560
  • [5] Byalko A. V., 1969, SOV ASTRON, V13, P784
  • [6] BYALKO AV, 1969, ASTRON ZH+, V46, P988
  • [7] THE MASS-DISTRIBUTION WITHIN OUR GALAXY - A 3 COMPONENT MODEL
    CALDWELL, JAR
    OSTRIKER, JP
    [J]. ASTROPHYSICAL JOURNAL, 1981, 251 (01) : 61 - 87
  • [8] GREIST K, 1991, APJ, V366, P412
  • [9] THE MASS OF COLD DARK-MATTER PARTICLES AND MICROLENSING
    GUREVICH, AV
    ZYBIN, KP
    [J]. PHYSICS LETTERS A, 1995, 208 (4-6) : 276 - 280
  • [10] GUREVICH AV, 1996, PHYS LETT A
123