Possible evidence for beaming in flares from microwave and hard X-ray imaging and spectraThe magnetic field strength and number of burst-producing energetic electrons are presently deduced for the impulsive phase of a solar flare at microwave wavelengths, with the VLA, and hard X-rays, with the SMM Hard X-ray Burst Spectrometer. The combined data indicate that the number of microwave-emitting electrons is at least three orders of magnitude smaller than the number of thick target electrons producing the hard X-rays; this is suggested to be due to the high beaming and inefficient radiation of gyrosynchrotron emission by comparison with isotropically distributed electrons.
Document ID
19870038952
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schmahl, E. J. (Maryland Univ. College Park, MD, United States)
Kundu, M. R. (Maryland, University College Park, United States)
Dennis, B. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)