Abstract We have searched for anisotropic X-ray bremsstrahlung photon production from relativistic electrons by studying the heliocentric angular dependence of 53 flares detected at energies above 300 keV. We have found no evidence for a higher rate of detectable flares near the limb at the 80% confidence level. This result implies that the X-ray directivity as defined by the ratio of photon intensity at 75° and 0° of heliocentric angle is less than 1.5 above 300 keV and strongly rejects any flare model predicting X-ray production from a radial “beam” of energetic electrons.
Spatial variation for flares observed with the gamma ray spectrometer aboard the SMM satellite
Advances in Space Research ; 2 , 11 ; 193-196
01.01.1983
4 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Gamma ray bursts flares detected and observed by the Swift satellite
Online Contents | 2007
|The Gas Chromatograph Mass Spectrometer Aboard Huygens
British Library Online Contents | 1997
|The signe II gamma-ray burst experiment aboard the prognoz 9 satellite
Elsevier | 1986
|