Spectrographic Observations of the Flare of July 20, 1961
1967; IOP Publishing; Volume: 148; Linguagem: Inglês
10.1086/149172
ISSN1538-4357
Autores Tópico(s)Magnetic confinement fusion research
Resumoview Abstract Citations (10) References (19) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spectrographic Observations of the Flare of July 20, 1961 Zirin, Harold ; Acton, Loren W. Abstract Spectroscopic observations of the late stages of a limb flare which occurred on July 20,1961, are presented. Because these observations were made with an achromatic coronagraph, accurate line intensity ratios are possible. The He I and He ii line ratios indicate a recombination-cascade spectrum. Measurements of cbntinuum densities give values around 1010 in the post-flare loop region and 1011 or more in the flare. Ca xv line widths correspond to 4.3 X 100 K. A magnetic loop structure which guides successive surges is studied. Publication: The Astrophysical Journal Pub Date: May 1967 DOI: 10.1086/149172 Bibcode: 1967ApJ...148..501Z full text sources ADS |
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