Spectral observations of active region sources with RATAN-600 and WSRT

Details Spectral observations of active region sources with RATAN-600 and WSRT Spectral observations of active region sources with RATAN-600 and WSRT

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...270..509a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 270, no. 1-2, p. 509-515.

Astronomy and Astrophysics

Astrophysics

19

Radio Telescopes, Solar Activity, Solar Spectra, Solar Transition Region, Sunspots, Computer Programs, Line Spectra

Scientific paper

We present spectral observations of neutral line and sunspot associated sources obtained with the RATAN-600 radio telescope and the WSRT in the wavelength range of 2 to 6 cm. Sources associated with large sunspots have flat spectra, while neutral line sources have very steep spectra. In the case of a large spot we estimated the magnetic field to be at least 2700 G at the base of the transition region and 1800 G in the low corona. We consider possible interpretations of the radio emission above the neutral lines. Gyroresonance emission at the fourth harmonic is inadequate, whereas emission from a small population of nonthermal electrons (total number 10 exp 30 to 10 exp 31) with a delta = 3 power law distribution seems to be sufficient.

Affiliated with

Also associated with

No associations

Rating

Spectral observations of active region sources with RATAN-600 and WSRT 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 Spectral observations of active region sources with RATAN-600 and WSRT, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral observations of active region sources with RATAN-600 and WSRT will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1440659