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arXiv · 1712.01043

Fermi Large Area Telescope detection of gamma-ray emission from the direction of supernova iPTF14hls

Qiang Yuan·Neng-Hui Liao·Yu-Liang Xin·Ye Li·Yi-Zhong Fan·Bing Zhang·Hong-Bo Hu·Xiao-Jun Bi
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Abstract

The remnant of supernova explosion is widely believed to be the acceleration site of high-energy cosmic ray particles. The acceleration timescale is, however, typically very long. Here we report the detection of a variable $\gamma$-ray source with the Fermi Large Area Telescope, which is positionally and temporally consistent with a peculiar supernova, iPTF14hls. A quasi-stellar object SDSS J092054.04+504251.5, which is probably a blazar according to the infrared data, is found in the error circle of the $\gamma$-ray source. More data about the $\gamma$-ray source and SDSS J092054.04+504251.5 are needed to confirm their association. On the other hand, if the association between the $\gamma$-ray source and the supernova is confirmed, this would be the first time to detect high-energy $\gamma$-ray emission from a supernova, suggesting very fast particle acceleration by supernova explosions.

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Qiang Yuan, Neng-Hui Liao, Yu-Liang Xin, Ye Li, Yi-Zhong Fan, Bing Zhang, Hong-Bo Hu, Xiao-Jun Bi. 2017-12-04. Fermi Large Area Telescope detection of gamma-ray emission from the direction of supernova iPTF14hls. https://doi.org/10.3847/2041-8213/aaacc9

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