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arXiv 2108.02069astro-ph.HEhep-ph
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用Fermi LAT扩展类轴子诱发伽马射线暴的核坍缩超新星样本

Extending the sample of core-collapse supernovae for searches of axion-like-particle induced gamma-ray bursts with the Fermi LAT

Manuel Meyer, Tanja Petrushevska

摘要:

在核心坍缩超新星(SN)中,类轴子粒子(ALP)可以通过Primakoff过程产生,随后在银河系的磁场中转化为伽马射线。我们利用一个在可见光波段的河外超新星样本,估计了核心坍缩的时间,并利用费米大天区望远镜(LAT)寻找一个符合的伽马射线暴。假设LAT视野内至少包含一个SN,我们排除了SN 1987 A中先前限制的$\sim$ 5倍内的光子-ALP耦合。随着越来越多的SNe观测光学调查,我们的研究结果表明,探测ALP暗物质结合光学和伽马射线观测的潜力。我们还提供了估计爆炸时间的15个近距离SNe最近观察到的ZTF的初步结果。我们的研究结果表明,爆炸时间可以在一天内估计(仅统计不确定性),使其成为后续LAT分析的有希望的目标。

英文摘要:

During a core-collapse supernova (SN), axion-like particles (ALPs) could be produced through the Primakoff process and subsequently convert into gamma rays in the magnetic field of the Milky Way. Using a sample of well studied extragalactic SNe at optical wavelengths, we estimate the time of the core collapse and search for a coincident gamma-ray burst with the Fermi Large Area Telescope (LAT). Under the assumption that at least one SN was contained within the LAT field of view, we exclude photon-ALP couplings within a factor of $\sim$5 of previous limits from SN1987A. With the increasing number of SNe observed with optical surveys, our results demonstrate the potential to probe ALP dark matter with combined optical and gamma-ray observations. We also provide preliminary results for the estimation of explosion times of 15 close-by SNe observed recently with ZTF. Our findings show that the explosion time can be estimated within one day (statistical uncertainty only) making them promising targets for a follow-up LAT analysis.

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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