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Record Details

Record 13 of 551
Dynamic evolution of recurrent mass ejections observed in H-alpha and C IV lines
External Online Source: doi:10.1007/BF00154814
Author and Affiliation:
Schmieder, B.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Mein, P.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Martres, M. J.(Meudon, Observatoire, Meudon, Hauts-de-Seine, France)
Tandberg-Hanssen, E.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Abstract: The mass ejections of 1 September, 1980 are studied from observations obtained with the MSDP spectrograph and with the Ultraviolet Spectrometer and Polarimeter aboard the Solar Maximum Mission satellite. The analysis is focused on observations in the chromospheric H-alpha line and the transition region C IV 1548 A line. It is noted that cold and hot material had the same projection, although the upward C IV velocity structure was more extended than the H-alpha one. It is shown that the observed contrast of the H-alpha absorbing structure can be interpreted in terms of a dynamic cloud model overlying the chromosphere. Radial velocities of 25-30 km/s and -40 km/s are estimated for the first and second phases of ejection, respectively.
Publication Date: Aug 01, 1984
Document ID:
19850038136
(Acquired Nov 28, 1995)
Accession Number: 85A20287
Subject Category: SOLAR PHYSICS
Document Type: Journal Article
Publication Information: Solar Physics (ISSN 0038-0938); 94; 133-150
Publisher Information: Netherlands
Financial Sponsor: NASA; United States
Organization Source: NASA Marshall Space Flight Center; Huntsville, AL, United States
Observatoire de Paris-Meudon
Description: 18p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CARBON; H ALPHA LINE; SOLAR FLARES; SOLAR SPECTRA; STELLAR MASS EJECTION; DOPPLER EFFECT; EJECTA; KINETIC ENERGY; PRESSURE GRADIENTS; SPECTROHELIOGRAPHS; SUNSPOTS
Imprint And Other Notes: Solar Physics (ISSN 0038-0938), vol. 94, Aug. 1984, p. 133-150. Research supported by the Institut National d'Astronomie et de Geophysique.
Miscellaneous Notes: Research supported by the Institut National d'Astronomie et de Geophysique
Availability Source: Other Sources
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