论文标题

Lofar搜索来自托管潮汐事件的星系中的无线电排放

LOFAR search for radio emission from galaxies hosting tidal disruption events

论文作者

Kaushik, Kamakshi, Omar, Amitesh, Kumar, Brijesh, Mishra, Kuntal, Joshi, Jagdish

论文摘要

在144个MHz Lofar-LOTSS2图像中搜索了23个潮汐破坏事件的无线电发射。通过弥漫性无线电发射检测到三个宿主星系,可以解释为在密集的银河环境中的银河同步射击或弥漫性无线电晕。大多数星系中(瞬态)无线电发射的未检测可能是由于与潮汐破坏事件相关的无线电发射的自我吸收。检测到的物体为AT2018IIH,苏格兰皇家银行1032和NGC 5905。还报告了SW 1644+57的非检测。

Radio emission from 23 tidal disruption event host galaxies were searched in the 144 MHz LOFAR-LoTSS2 images. Three host galaxies are detected with diffuse radio emission, which can be interpreted as either galactic synchrotron radio emission or diffuse radio halo in dense galactic environments. Non-detection of (transient) radio emission in majority of galaxies could be due to self-absorption of radio emission associated with the tidal disruption event. The detected objects are AT2018iih, RBS 1032, and NGC 5905. Non-detection for Sw 1644+57 is also reported.

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