Surprisingly Intense Neutron Emission from a Flare behind the Limb of the Sun | Zendy

R. J. Murphy | Zendy; G. H. Share | Zendy; K. W. Delsignore | Zendy; Xuefeng Hua | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Surprisingly Intense Neutron Emission from a Flare behind the Limb of the Sun

Author(s) -

R. J. Murphy,

G. H. Share,

K. W. Delsignore,

Xuefeng Hua

Publication year - 1999

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/306614

Subject(s) - physics , flare , astrophysics , chromosphere , solar flare , photosphere , astronomy , observatory , neutron , corona (planetary geology) , nuclear physics , spectral line , astrobiology , venus

The Oriented Scintillation Spectrometer Experiment on board the Compton Gamma Ray Observatory observed a strong flux of neutrons from the behind-the-limb flare that occurred on 1991 June 1. This is surprising if the neutrons were produced by thin-target interactions in the Sun's corona, as is suggested by γ-ray observations of this flare made by Granat/PHEBUS. We compare neutron and γ-ray observations of the June 1 flare with thick-target emissions observed from a flare 3 days later, where the interactions took place in the chromosphere and photosphere. A very hard spectrum for the accelerated particles is required to account for the number of neutrons observed on June 1 if they were produced by thin-target interactions in the corona.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research