用两个LWA站探测低频宇宙射电瞬变
Detection of a Low-frequency Cosmic Radio Transient Using Two LWA Stations
摘要：
本文报道了利用长波长天线阵的两个台站探测到一个潜在的宇宙射电瞬变源。瞬变于2017年10月18日08：47 UTC在天赤道附近被发现，同时减少了LWA 1和LWA-SV站10，240小时的档案全天空图像。在34 MHz下检测到的瞬态持续时间为15 - 20秒，LWA 1处的通量密度为842 +/- 116 Jy，LWA-SV处的通量密度为830 +/- 92 Jy。瞬变源没有重复，其性质也没有得到很好的理解。Pan-STARRS光学望远镜在同一天探测到了一颗发生在瞬变位置误差圆边缘的超新星。
英文摘要：
We report the detection of a potential cosmic radio transient source using the two stations of the Long Wavelength Array. The transient was detected on 18 October 2017 08:47 UTC near the celestial equator while reducing 10,240 hours of archival all-sky images from the LWA1 and LWA-SV stations. The detected transient at 34 MHz has a duration of 15 - 20 seconds and a flux density of 842 +/- 116 Jy at LWA1 and 830 +/- 92 Jy at LWA-SV. The transient source has not repeated, and its nature is not well understood. The Pan-STARRS optical telescope has detected a supernova that occurred on the edge of the position error circle of the transient on the same day.
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