Astronomy and Astrophysics – Astronomy
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spd....34.0412k&link_type=abstract
American Astronomical Society, SPD meeting #34, #04.12; Bulletin of the American Astronomical Society, Vol. 35, p.812
Astronomy and Astrophysics
Astronomy
Scientific paper
Multi-thermal features with speeds of 5-70 km/s perpendicular to the line of sight are common in the prominences which showed traceable motions. These speeds are noticeably higher than the typical speeds of 5-20 km/s observed in H-alpha data from ``quiet" prominences and are more typical of ``activated" prominences in which H-alpha blob speeds of up to 40 km/s have been reported. In order to make a more quantitative determination of the thermal properties of the moving features seen in the UV, we use the SOHO Coronal Diagnostic Spectrometer to take a time series of exposures from a single pointing position, providing a measurement of spectral line properties as a function of time and position along the slit. The resulting observations in lines of O III, O IV, O V, Ne IV, Ne V, Ne VI, and Ne VII allow us to calculate the differential emission measure of moving features and provide a test of models of flows in prominences. Support for this work was partially provided by NASA RTOP 432-03-52-17.
Kucera Therese A.
Landi Enrico
No associations
LandOfFree
DEM measurements of moving UV features in prominences 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 DEM measurements of moving UV features in prominences, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DEM measurements of moving UV features in prominences will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-985753