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LOFAR search for radio emission from galaxies hosting tidal disruption events

Astrophysics of Galaxies 2022-09-21 v1
Authors: Kamakshi Kaushik , Amitesh Omar , Brijesh Kumar , Kuntal Mishra , Jagdish Joshi
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Abstract

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.

Keywords

tidal disruption events host galaxies radio emission lofar lotss2 synchrotron self-absorption

Cite

@article{arxiv.2209.09643,
  title  = {LOFAR search for radio emission from galaxies hosting tidal disruption events},
  author = {Kamakshi Kaushik and Amitesh Omar and Brijesh Kumar and Kuntal Mishra and Jagdish Joshi},
  journal= {arXiv preprint arXiv:2209.09643},
  year   = {2022}
}

Comments

3 pages, 3 figures, In Research Notes AAS (RNAAS)

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