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Nonthermal processes in flaring X-ray-bright pointsX-ray-bright point (XBPs) are known to show variability on a number of timescales, including impulsive X-ray brightenings. The relationship between these XBP 'flares' and normal solar flares is poorly known. A fundamental question is whether nonthermal acceleration of particles takes place in XBP flares. We address this issue by searching for nonthermal radio emission at metric wavelengths from flaring XBPs identified in Yohkoh soft x-ray telescope (SXT) data. Unequivocal evidence for type III-like radio bursts, usually attributed to beams of nonthermal electrons on open field lines, is found. This suggests that XBP flares are similar to normal flares and can indeed accelerate nonthermal populations of energetic particles.
Document ID
19950031815
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kundu, M. R.
(Univ. of Maryland, College Park, MD United States)
Strong, K. T.
(Lockheed Palo Alto Research Laboratory, Palo Alto, CA United States)
Pick, M.
(Observatoire de Meudon Meudon, France)
White, S. M.
(Univ. of Maryland, College Park, MD United States)
Hudson, H. S.
(Univ. of Hawaii, Honolulu, HI United States)
Harvey, K. L.
(Solar Physics Research Corporation Tucson, AZ, United States)
Kane, S. R.
(Univ. of California-Berkeley, Berkeley, CA United States)
Date Acquired
August 16, 2013
Publication Date
May 20, 1994
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 427
Issue: 1
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
95A63414
Funding Number(s)
CONTRACT_GRANT: NAGW-1541
CONTRACT_GRANT: NSF ATM 90-19893
Distribution Limits
Public
Copyright
Other

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