DICKE’S SUPERRADIANCE IN ASTROPHYSICS. I. THE 21 cm LINE

@article{Rajabi2016DICKESSI,
  title={DICKE’S SUPERRADIANCE IN ASTROPHYSICS. I. THE 21 cm LINE},
  author={Fereshteh Rajabi and Martin Houde},
  journal={The Astrophysical Journal},
  year={2016},
  volume={826}
}
We have applied the concept of superradiance introduced by Dicke in 1954 to astrophysics by extending the corresponding analysis to the magnetic dipole interaction characterizing the atomic hydrogen 21 cm line. Although it is unlikely that superradiance could take place in thermally relaxed regions and that the lack of observational evidence of masers for this transition reduces the probability of detecting superradiance, in situations where the conditions necessary for superradiance are met… 

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