Fu-Ying Xu

Some observed results of solar radio spectrometer at 4.5-7.5 GHz

A new instrument of broadband solar radio spectrometer working at waveband 4.5-7.5 GHz was developed at Purple Mountain Observatory for Solar Maximum 23. Some new results of spectral observation have been obtained since August 1999. Two typical type III mu bursts with rich fine structures are presented and some interesting features discussed.

Observation of the 1997-03-09 total eclipse at 8.6 mm

COPY THE ORIGINAL Analysis of the total eclipse observation of 1997 March 9 at wavelength 8.6 mm, shows that, at this wavelength, the solar radius is 1.012 R., the total flux density is 2540 sfu, the mean brightness temperature of the solar disk is 9632 K, and the brightness temperature distribution shows limb brightening at the inner edge of the solar disk, the average brightness at 0.936-0.992 R. being 9.7% above the central brightness.