GRAVITATIONAL MICROLENSING AS A METHOD OF DETECTING DISK DARK MATTER AND FAINT DISK STARS

被引：133

作者：

GRIEST, K

ALCOCK, C

AXELROD, TS

BENNETT, DP

COOK, KH

FREEMAN, KC

PARK, HS

PERLMUTTER, S

PETERSON, BA

QUINN, PJ

RODGERS, AW

STUBBS, CW

机构：

[1] UNIV CALIF LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550

[2] AUSTRALIAN NATL UNIV,MT STROMLO & SIDING SPRING OBSERV,WODEN,ACT 2606,AUSTRALIA

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 372卷 / 02期

关键词：

DARK MATTER; GRAVITATIONAL LENSES; STARS; LOW-MASS;

D O I：

10.1086/186028

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Gravitational microlensing of stars in the Galactic bulge is proposed as a method of probing the mass density of disk objects in the 10(-3) to 10(-1) M. range. A substantial rate is found if disk dark matter of this form exists, and even without any dark matter, a significant microlensing rate is found, owing to the faint low-mass disk stars which are known to exist. Such a search would provide new information on the disk dark matter question, probe the low-end stellar mass function, and also search for halo dark matter, all with rates comparable to those expected for the ongoing LMC microlensing halo dark matter searches.

引用

页码：L79 / L82

页数：4

共 17 条

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