Physics
Scientific paper
Sep 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988soph..116..223a&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 116, no. 2, 1988, p. 223-237.
Physics
13
Emission Spectra, Raster Scanning, Red Shift, Root-Mean-Square Errors, Solar Spectra, Solar Velocity, Coronal Loops, Magnetohydrodynamic Flow, Skylab Program, Solar Magnetic Field, Solar Maximum Mission
Scientific paper
An attempt is made in this paper to determine the coefficient α in a power-law relationship of the form Vσ ≡ Tα between the r.m.s. velocity fluctuation, Vσ, for raster images with 3arcsec resolution and the temperature, T, of line formation using SMM solar data. For T between 8000 and 105K, the data suggest a best fit with 3/4 ⪉ α < 1. It is argued, however, that unresolved fine structure tends to reduce the observed value of Vσ and that higher resolution data may yield different values for α. Skylab data have shown that the non-thermal line broadening velocity, ξ, is proportional to T1/2. Also, for all temperatures less than 105K, ξ very large Vσ. This latter result, however, is again dependent on spatial resolution and may not be true in observations made with sufficient spatial resolution. The magnitudes of both Vσ and ξ indicate that bulk motions play important roles in the structure of the solar atmosphere as well as in its energy and momentum balance.
No associations
LandOfFree
The relationship between r.m.s. Doppler velocities and temperature in the solar transition region does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The relationship between r.m.s. Doppler velocities and temperature in the solar transition region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The relationship between r.m.s. Doppler velocities and temperature in the solar transition region will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1037647