A search for optical transients associated with fast radio burst 150418†‡
A search for optical transients associated with fast radio burst 150418†‡
复制标题
搜索与快速射电暴相关的光瞬变 150418†‡
DOI：
10.1093/pasj/psy102
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发表时间：
2018
影响因子：
2.3
通讯作者：
Yamasaki Shotaro
中科院分区：
文献类型：
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作者：
Niino Yuu;Tominaga Nozomu;Totani Tomonori;Morokuma Tomoki;Keane Evan;Possenti Andrea;Sugai Hajime;Yamasaki Shotaro
我们已经在射电变量源的宿主星系中寻找了可能与快速射电爆发150418有关的光学可变性。我们比较了用斯巴鲁/苏必利相机拍摄的银河系爆发后1天的图像和用双子座 /GMOS拍摄的银河系爆发后1天(∼1 )的图像。两个历元之间没有发现光学变率，其极限绝对震级为≳−19(AB)。这一极限适用于星系中假定的活动星系核在∼1 yr时间尺度上的光学可变性，也适用于爆发后一天的FRb 150418光学对应物的光度，如果它发生在这个星系中的话。
We have searched for optical variability in the host galaxy of the radio variable source possibly associated with fast radio burst (FRB) 150418. We compare images of the galaxy taken 1 day after the burst using Subaru/Suprime-Cam with images taken ∼1 yr after the burst using Gemini-South/GMOS. No optical variability is found between the two epochs with a limiting absolute magnitude ≳ −19 (AB). This limit applies to the optical variability of the putative active galactic nucleus in the galaxy on a timescale of ∼1 yr, and also to the luminosity of an optical counterpart of FRB 150418 one day after the burst should it have occurred in this galaxy.