Abstract
view Abstract Citations (70) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Multispectral Observations of Chromospheric Evaporation in the 1991 November 15 X-Class Solar Flare Wuelser, Jean-Pierre ; Canfield, Richard C. ; Acton, Loren W. ; Culhane, J. Leonard ; Phillips, Andrew ; Fludra, Andrzej ; Sakao, Taro ; Masuda, Satoshi ; Kosugi, Takeo ; Tsuneta, Saku Abstract We analyze simultaneous H(alpha) images and spectra (from Mees Solar Observatory), and soft and hard X-ray images and spectra (from YOHKOH) during the early phase of an X1.5/3B flare. We investigate the morphological relationship between chromospheric downflows, coronal upflows, and particle precipitation sites, and the energetic relationship between conductive heating, nonthermal particle heating, and the chromospheric response. We find that the observations consistently fit the chromospheric evaporation model. In particular, we demonstrate that the observed upflowing coronal and downflowing chromospheric plasma components originate in the same locations, and we show that our unique set of optical and X-ray observations can clearly distinguish between conductively driven and electron beam driven evaporation. Publication: The Astrophysical Journal Pub Date: March 1994 DOI: 10.1086/173903 Bibcode: 1994ApJ...424..459W Keywords: Chromosphere; Evaporation; Particle Precipitation; Solar Flares; X Ray Imagery; Conductive Heat Transfer; Red Shift; Solar Wind; Spectroheliographs; Astrophysics; LINE: PROFILES; SUN: CHROMOSPHERE; SUN: CORONA; SUN: FLARES; SUN: X-RAYS; GAMMA RAYS full text sources ADS |
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