Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....82..265k&link_type=abstract
Astronomy and Astrophysics, vol. 82, no. 3, Feb. 1980, p. 265-271.
Astronomy and Astrophysics
Astronomy
22
Far Ultraviolet Radiation, Microwave Spectra, Radiation Absorption, Solar Corona, Solar X-Rays, Ultraviolet Spectra, X Ray Imagery, Astronomical Photography, Brightness Temperature, Image Processing, Radio Astronomy, Solar Spectra, Spectroheliographs
Scientific paper
The combined data from 3.7 and 11 cm radio maps, EUV spectroheliograms, and X-ray photographs of an active region (McMath 12379) are analyzed. The near equality of the radio brightness temperatures and the electron temperature determined from the EUV and X-ray data implies that the radio emission is thermal. Since the free-free absorption is inadequate to account for this, the large optical depth must be produced by gyroresonance absorption. It is inferred that the magnetic scale height must be of the same order as the observed width of the coronal loops (one-billion cm). The scale of emission in the radio, and hence the scale of the absorbing region transverse to the line of sight, is also of this order.
Gerassimenko Michel
Kundu Mukul R.
Schmahl Ed. J.
No associations
LandOfFree
Microwave, EUV, and X-ray observations of active region loops - Evidence for gyroresonance absorption in the corona 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 Microwave, EUV, and X-ray observations of active region loops - Evidence for gyroresonance absorption in the corona, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave, EUV, and X-ray observations of active region loops - Evidence for gyroresonance absorption in the corona will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1620182