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.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Spatial variation for flares observed with the gamma ray spectrometer aboard the SMM satellite


    Beteiligte:
    Zolcinski, M.C. (Autor:in) / Forrest, D.J. (Autor:in) / Ryan, J.M. (Autor:in) / Chupp, E.L. (Autor:in) / Kanbach, G. (Autor:in) / Reppin, C. (Autor:in) / Rieger, E. (Autor:in) / Share, G.H. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 2 , 11 ; 193-196


    Erscheinungsdatum :

    01.01.1983


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Spatial variation for flares observed with the gamma ray spectrometer aboard the SMM satellite

    Zolcinski, M. C. / Forrest, D. J. / Ryan, J. M. et al. | NTRS | 1982



    Evidence for solar flare directivity from the Gamma-Ray Spectrometer aboard the SMM satellite

    Vestrand, W. T. / Forrest, D. J. / Chupp, E. L. et al. | NTRS | 1986


    The Gas Chromatograph Mass Spectrometer Aboard Huygens

    Niemann, H. et al. | British Library Online Contents | 1997


    The signe II gamma-ray burst experiment aboard the prognoz 9 satellite

    Boer, M. / Hurley, K. / Niel, M. et al. | Elsevier | 1986