Searching Water Megamasers By Using Mid-infrared Spectroscopy (I): Possible Mid-infrared Indicators

@inproceedings{Lam2021SearchingWM,
  title={Searching Water Megamasers By Using Mid-infrared Spectroscopy (I): Possible Mid-infrared Indicators},
  author={Man I. Lam and Carl Jakob Walcher and Feng Gao and Ming Yang and Huan Li and Lei Hao},
  year={2021}
}
Water megamasers at 22 GHz with a gas disk configuration in galaxies provide the most precise measurements of supermassive black hole masses, as well as independent constraints on the Hubble constant in the nearby universe. The existence of other maser types, such as jet or outflow masers, represents another tracer for AGN science. However, the detection rate of water megamasers in galaxies is extremely low. Over 40 years, only ∼ 160 galaxies are found to harbour maser emission, and ∼30% of… Expand

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