Light dark matter and galaxy formation

被引：0

作者：

Ascasibar, Yago ^{[1
]}

机构：

[1] Astrophys Inst Potsdam, D-14482 Potsdam, Germany

来源：

DARK SIDE OF THE UNIVERSE | 2006年 / 878卷

关键词：

dark matter; Galaxy : halo; galaxies : formation;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

What if dark matter particles were as light as a few MeV? Well, they would "just" need to decay or annihilate in exactly the right amount to explain the observed dark matter density... However, such a process would yield a detectable imprint on both particle and cosmological scales. Some of the signatures would be difficult to measure; some others would determine whether a galaxy can form stars or not. Does any (actually all) of these weird things happen?

引用

收藏

页码：152 / 157

页数：6

相关论文

共 16 条

[1] Constraints on dark matter and the shape of the Milky Way dark halo from the 511-keV line [J].

Ascasibar, Y. ;

Jean, P. ;

Boehm, C. ;

Knodlseder, J. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 368 (04) :1695-1705

[2]

ASCASIBAR Y, 2006, UNPUB PHYS REV LETT

[3] Gamma-ray constraint on galactic positron production by MeV dark matter [J].

Beacom, JF ;

Bell, NF ;

Bertone, G .

PHYSICAL REVIEW LETTERS, 2005, 94 (17)

[4] Stringent constraint on galactic positron production [J].

Beacom, John F. ;

Yuksel, Hasan .

PHYSICAL REVIEW LETTERS, 2006, 97 (07)

[5] Implications of a new light gauge boson for neutrino physics [J].

Boehm, C .

PHYSICAL REVIEW D, 2004, 70 (05) :055007-1

[6] More evidence in favor of light dark matter particles? [J].

Boehm, C ;

Ascasibar, Y .

PHYSICAL REVIEW D, 2004, 70 (11) :115013-1

[7]

BOEHM C, 2006, HEPPH0606058

[8] Scalar dark matter candidates [J].

Boem, C ;

Fayet, P .

NUCLEAR PHYSICS B, 2004, 683 (1-2) :219-263

[9] Old and new physics interpretations of the NuTeV anomaly [J].

Davidson, S ;

Forte, S ;

Gambino, P ;

Rius, N ;

Strumia, A .

JOURNAL OF HIGH ENERGY PHYSICS, 2002, (02) :749-775

[10] Possible evidence for axino dark matter in the galactic bulge [J].

Hooper, D ;

Wang, LT .

PHYSICAL REVIEW D, 2004, 70 (06) :4