A mini-survey of ultracool dwarfs at 4.9 GHz

@article{Antonova2008AMO,
  title={A mini-survey of ultracool dwarfs at 4.9 GHz},
  author={A. Antonova and J. G. Doyle and G. Hallinan and S. Bourke and A. Golden},
  journal={Astronomy and Astrophysics},
  year={2008},
  volume={487},
  pages={317-322}
}
Context. A selection of ultracool dwarfs are known to be radio active, with both gyrosynchrotron emission and the electron cyclotron maser instability being given as likely emission mechanisms. Aims. We explore whether ultracool dwarfs previously undetected at 8.5 GHz may be detectable at a lower frequency. Methods. We select a sample of fast rotating ultracool dwarfs with no detectable radio activity at 8.5 GHz, observing each of them at 4.9 GHz. Results. From the 8 dwarfs in our sample, we… Expand
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