A new direction for dark matter research: intermediate-mass compact halo objects

被引：31

作者：

Chapline, George F. ^{[1
]}

Frampton, Paul H. ^{[2
]}

机构：

[1] Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94550 USA

[2] 15 Summerheights,29 Water Eaton Rd, Oxford OX2 7PG, England

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2016年 / 11期

关键词：

dark matter experiments; dark matter theory; PARALLAX; PROJECT; MACHOS; LIMITS;

D O I：

10.1088/1475-7516/2016/11/042

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The failure to find evidence for elementary particles that could serve as the constituents of dark matter brings to mind suggestions that dark matter might consist of massive compact objects (MACHOs). In particular, it has recently been argued that MACHOs with masses > 15M(circle dot) may have been prolifically produced at the onset of the big bang. Although a variety of astrophysical signatures for primordial MACHOs with masses in this range have been discussed in the literature, we favor a strategy that uses the potential for magnification of stars outside our galaxy due to gravitational microlensing of these stars by MACHOs in the halo of our galaxy. We point out that the effect of the motion of the Earth on the shape of the micro-lensing brightening curves provides a promising approach to testing over the course of next several years the hypothesis that dark matter consists of massive compact objects.

引用

页数：10

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