Solar cycle variation of the temperature structure within the cores of coronal streamers

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Sun: Corona, Sun: Activity, Sun: X-Rays

Scientific paper

We use the Coronal Diagnostic Spectrometer onboard the Solar and Heliospheric Observatory (SOHO) to analyze conditions in coronal streamer structures observed close to solar minimum (1996, July 8) and near maximum (1999, August 5). From emission line intensities (Fe IX-XV ions), the line ratio method gives the radial temperature behaviour. The solar minimum peak values were about 1.4 MK at 1.3 R0, while near solar maximum values were consistent with Yohkoh observations at the last maximum, displaying an asymptotic temperature of around 2.2 MK above 1.2 R0. We discuss the observations in relation to possible mechanisms for energy deposition in large coronal structures.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Solar cycle variation of the temperature structure within the cores of coronal streamers 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 Solar cycle variation of the temperature structure within the cores of coronal streamers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solar cycle variation of the temperature structure within the cores of coronal streamers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1210872

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.