Peryton (Astronomy)

Peryton (Astronomy)

In radio astronomy Perytons are short radio signals having a duration of a few milliseconds, which are probably of Earth origin. Perytons are named after a mythical creature.

These signals mimic fast radio bursts, pulses that appear to be coming from outside of our galaxy.[1] These perytons were found to be the result of premature opening of microwave oven doors, which releases a frequency-swept radio pulse that mimics an FRB, as the magnetron turns off.[2]

These signals are sidelobes captured by the antenna. Perytons occur at high altitudes above the horizon and show frequency dispersion, unlike FRB. Perytons often occur as a result of periodic bursts. Recombination of three carriers or synchrotron radiation of a decaying magnetic field are potential causal mechanisms.

Other potential sources of Perytons include:

  • Signals from aircraft
  • Flashes in the ionosphere
  • Solar flares
  • Terrestrial gamma-ray bursts
  • Narrow bipolar pulse. These are electrical discharges between clouds at high altitude with a capacity of several hundred GW

Literature

  • Mohammad Danish Khan (2014), "Perytons and their Possible Sources" (in German), Astrophysics. Solar and Stellar Astrophysics,  
  • J. I. Katz (2014), "What Perytons Aren't, and Might Be" (in German), Astrophysics. Solar and Stellar Astrophysics,  
  • S. R. Kulkarni, E. O. Ofek, J. D. Neill, Z. Zheng, M. Juric (2014), "Giant Sparks at Cosmological Distances?" (in German), Astrophysics. Solar and Stellar Astrophysics,  
  • Pascal Saint-Hilaire, Arnold O. Benz, Christian Monstein (2014), "Short-duration Radio Bursts with Apparent Extragalactic Dispersion" (in German), Astrophysics. Solar and Stellar Astrophysics,  
  • Manjari Bagchi, Angela Cortes Nieves, Maura McLaughlin (2012), "A search for dispersed radio bursts in archival Parkes Multibeam Pulsar Survey data" (in German), Astrophysics. Solar and Stellar Astrophysics,  

References

  1. ^ Sarah Burke-Spolaor; Matthew Bailes; Ronald Ekers; Jean-Pierre Macquart; Fronefield Crawford III (2010). "Radio Bursts with Extragalactic Spectral Characteristics Show Terrestrial Origins".  
  2. ^ Emily Petroff; E. F. Keane; E. D. Barr; J. E. Reynolds; J. Sarkissian; P. G. Edwards; J. Stevens; C. Brem; A. Jameson; Sarah Burke-Spolaor; S. Johnston; N. D. R. Bhat; P. Chandra; S. Kudale; S. Bhandari (2015). "Identifying the source of perytons at the Parkes radio telescope".  

External links

  • What is a peryton? on Physics SE