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arXiv 1805.08780astro-ph.COhep-ph
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在矮椭球体中寻找轴子暗物质

Looking for Axion Dark Matter in Dwarf Spheroidals

Andrea Caputo, Carlos Peña Garay, Samuel J. Witte

摘要:

我们研究的范围内,冷暗物质轴子的衰变可以探测到即将到来的射电望远镜,如平方公里阵列(SKA)。特别是,我们专注于从矮球状星系,天体物理的不确定性减少和预期的磁场强度是这样的,从轴子衰变产生的信号可能会占主导地位的轴子光子转换在磁场的信号。我们发现,与$\sim100$小时的观察时间,SKA可以提高电流灵敏度的约5倍。

英文摘要:

We study the extent to which the decay of cold dark matter axions can be probed with forthcoming radio telescopes such as the Square Kilometer Array (SKA). In particular we focus on signals arising from dwarf spheroidal galaxies, where astrophysical uncertainties are reduced and the expected magnetic field strengths are such that signals arising from axion decay may dominate over axion-photon conversion in a magnetic field. We show that with $\sim100$ hours of observing time, SKA could improve current sensitivity by a factor of about five.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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