Spectral radio observations of a solar eclipse

✍ Scribed by R. M. Straka

• Publisher: Springer
• Year: 1971
• Tongue: English
• Weight: 596 KB
• Volume: 21
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00154300

✦ Synopsis

occurred at eclipse maximum. Source flux spectra for the intense sources located in McMath plages 10 618(SE), 10617(NE), and 10 607(NW) show gyro-resonance spectral peaking, whereas the less intense bremsstrahlung emission is observed for the weaker sources in plages 10 614 and 10 619. Associated one-dimensional source sizes for these regions vary from 0.8 arc min (at 3.4 cm) to 5.4 arc min (at 49.5 cm); with sizes at a particular wavelength increasing with intensity of the source. An estimated flux spectrum of the undisturbed radio Sun for 7 March, 1970 is given and compared to the spectrum for the solar minimum of 1964. In plage 10 607 a weak halo emission was isolated from the intense emission from the central source over the spot. The measure of emission N2L from the halo above plage 10 607 was calculated to be ~ 7 x 1027 electron2/cm 5.