Coronal Radiation and Helium lambda584 Emission in Active Regions

Details Coronal Radiation and Helium lambda584 Emission in Active Regions Coronal Radiation and Helium lambda584 Emission in Active Regions

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999soph..184..113f&link_type=abstract

Solar Physics, v. 184, Issue 1, p. 113-132 (1999).

Physics

15

Scientific paper

Based on EUV observations of eleven sunspot regions obtained with the Coronal Diagnostic Spectrometer, CDS, on SOHO we have studied the spatial distribution, temporal variation and wavelength shift of the Hei lambda584 line. We find a relatively high spatial correlation between the coronal line Fexvi lambda360 and the Hei lambda584 line. This points to coronal back-radiation as an important contributor to the formation of the Hei line in active regions. However, contribution to the line formation from another source is suggested by the following two findings: First, the red-shifted line profiles of both Hei lambda584 and the transition region lines tend to be more intense than blue-shifted profiles. Second, the Hei lambda584 emission changes significantly faster than the coronal line emission.

Affiliated with

Also associated with

No associations

Rating

Coronal Radiation and Helium lambda584 Emission in Active Regions 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 Coronal Radiation and Helium lambda584 Emission in Active Regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coronal Radiation and Helium lambda584 Emission in Active Regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1277283