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SUMMARY:Radiation mechanism of Fast Radio Bursts - Pawan Kumar (UT Austin)
DTSTART:20190523T150000Z
DTEND:20190523T160000Z
UID:TALK123157@talks.cam.ac.uk
CONTACT:28811
DESCRIPTION:Fast radio bursts (FRBs) are millisecond duration transient ev
 ents of\nunknown physical origin. At least one FRB is located at a distanc
 e of\nseveral billion light years\, and CHIME has established that there a
 re many\nFRBs that repeat. Using very general arguments I will show that t
 he radio\nemission is coherent\, the magnetic field strength associated wi
 th the source\nof these events is 10^{14} Gauss or more\, and the electric
  field is of order\n10^{10} esu. I will describe recent works that magneti
 c field distortion and\nreconfiguration is responsible for the strong elec
 tric field and the\ncoherent radiation produced in these enigmatic events.
  I will also address\nthe polarization properties of the well-known repeat
 er.
LOCATION:Sackler Lecture Theatre\, IoA (tea at 3:30 pm)
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