On the sunspot transition region

Details On the sunspot transition region On the sunspot transition region

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999soph..190..437m&link_type=abstract

Solar Physics, v. 190, Issue 1/2, p. 437-458 (1999).

Physics

34

Scientific paper

The EUV line emission and relative line-of-sight velocity in the transition region between the chromosphere and corona of 36 sunspot regions are investigated, based on observations with the Coronal Diagnostic Spectrometer CDS and the Solar Ultraviolet Measurements of Emitted Radiation SUMER on the Solar and Heliospheric Observatory SOHO. The most prominent features in the transition-region intensity maps are the sunspot plumes. In the temperature range between log T=5.2 and log T=5.6 we find that 29 of the 36 sunspots contain one or two sunspot plumes. The relative line-of-sight velocity in sunspot plumes is high and directed into the Sun in the transition region, for 19 of the sunspots the maximum velocity exceeds 25 km s-1. The velocity increases with increasing temperature, reaches a maximum close to log T=5.5 and then decreases abruptly.

Affiliated with

Also associated with

No associations

Rating

On the sunspot 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 On the sunspot transition region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the sunspot transition region will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1061790