Helium 10830 Å measurements of the Sun

Details Helium 10830 Å measurements of the Sun Helium 10830 Å measurements of the Sun

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996soph..163...79b&link_type=abstract

Solar Physics, Volume 163, Issue 1, pp.79-91

Physics

9

Scientific paper

Measurements of the Sun in the near-infrared He i 10830 Å absorption line were performed using the echelle spectrograph with a dispersion of 6.71 mÅ per pixel at the Vacuum Tower Telescope (German Solar Telescopes, Teide Observatory, Izaña, Tenerife, Spain) on May 26, 1993. These measurements were compared with full-disc soft X-ray images of the Sun (Japanese solar satellite Yohkoh), full-disc solar images in Hα (Big Bear Solar Observatory), full-disc solar images in the He i 10830 Å line (National Solar Observatory, Kitt Peak) and with full-disc microwave solar maps at 37 GHz (Metsähovi Radio Research Station). In the He 10830 Å line the Sun displays a limb darkening similar to that in the visible part of the spectrum. Active regions and Hα filaments show a strong absorption in the He 10830 Å line, whereas the absorption is weak in coronal holes.

Affiliated with

Also associated with

No associations

Rating

Helium 10830 Å measurements of the Sun 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 Helium 10830 Å measurements of the Sun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helium 10830 Å measurements of the Sun will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1129929