The Possible Submillimeter Bump and Accretion-jet in the Central Supermassive Black Hole of NGC 4993

@article{Wu2017ThePS,
  title={The Possible Submillimeter Bump and Accretion-jet in the Central Supermassive Black Hole of NGC 4993},
  author={Qingwen Wu and Jianchao Feng and Xu-Liang Fan},
  journal={The Astrophysical Journal},
  year={2017},
  volume={855}
}
NGC 4993, as a host galaxy of the electromagnetic counterpart of the first gravitational-wave detection of a binary neutron-star merger, was observed by many powerful telescopes from radio to γ-ray wavebands. The weak nuclear activities of NGC 4993 suggest that it is a low-luminosity active galactic nuclei (LLAGNs). We build the multiwaveband spectral energy distributions (SEDs) of NGC 4993 from the literature. We find that the radio spectrum at ∼100–300 GHz is much steeper than that of the low… 

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