NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Electron acceleration and radiation signatures in loop coronal transientsIt is proposed that in loop coronal transients an erupting loop moves away from the solar surface, with a velocity exceeding the local Alfven speed, pushing against the overlying magnetic fields and driving a shock in the front of the moving part of the loop. Lower hybrid waves are excited at the shock front and propagate radially toward the center of the loop with phase velocity along the magnetic field that exceeds the thermal velocity. The lower hybrid waves stochastically accelerate the tail of the electron distribution inside the loop. The manner in which the accelerated electrons are trapped in the moving loop are discussed, and their radiation signature is estimated. It is suggested that plasma radiation can explain the power observed in stationary and moving type IV bursts.
Document ID
19820054524
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Vlahos, L. (Maryland Univ. College Park, MD, United States)
Gergely, T. E. (Maryland Univ. College Park, MD, United States)
Papadopoulos, K. (Maryland, University College Park, MD, United States)
Date Acquired
August 10, 2013
Publication Date
July 15, 1982
Publication Information
Publication: Astrophysical Journal
Subject Category
SOLAR PHYSICS
Funding Number(s)
CONTRACT_GRANT: NAGW-81
CONTRACT_GRANT: NSF AST-80-09058
CONTRACT_GRANT: NSF AST-81-08501
CONTRACT_GRANT: N00014-79-C-0665
Distribution Limits
Public
Copyright
Other