SN 1987A gamma-ray limits on the conversion of pseudoscalars

被引：146

作者：

Brockway, JW ^{[1
]}

Carlson, ED ^{[1
]}

Raffelt, GG ^{[1
]}

机构：

[1] MAX PLANCK INST PHYS & ASTROPHYS, WERNER HEISENBERG INST, D-80805 MUNICH, GERMANY

来源：

PHYSICS LETTERS B | 1996年 / 383卷 / 04期

关键词：

D O I：

10.1016/0370-2693(96)00778-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Pseudoscalar particles phi usually couple electromagnetically by an interaction of the form 1/4g phi F (F) over tilde, allowing them to convert to photons in the presence of magnetic fields. Notably, new low-mass pseudoscalars emitted from supernova (SN) 1987A would have been converted to gamma-rays in the intervening magnetic field of the galaxy. Therefore, measurements by the Solar Maximum Mission (SMM) Gamma-Ray Spectrometer (GRS) can limit the inverse coupling constant to g(-1) > 1x10(11) GeV, assuming the pseudoscalar is massless. This is an improvement over other astrophysical limits of a factor of about 2.5.

引用

页码：439 / 443

页数：5

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