On the complex spatial structure of a gradual microwave burst

We present a discussion of the gradual burst event on May 13,1985 which is based on observations of the RATAN-600 telescope at ten fixed frequencies in the range between 37.5 and 0.95 GHz (0.8 and 31.6 cm wavelength) and on time profiles of patrol observations of the Observatory for Solar Radio Astronomy at Tremsdorf near Potsdam. This up to now most complete data set allows new conclusions on the extended spectral/spatial structure of the source region.There is strong evidence that only less than 24% of the microwave flux from this event is emitted by an excessive small-scale burst source while the bulk of the burst emission comes from a larger region consisting of two major components covered by the source area of the S-component radiation. The different components of the burst and S-component radiation are analyzed.     

Second catalogue of X-ray sources

A catalogue of X-ray sources containing 677 objects known as of 1979 September has been compiled. X-ray data collected by means of rockets, balloons, and satellites during 1964–1979 are listed. Optical and radio counterparts are suggested. The existence of the weak X-ray sources population in the Galaxy is indicated. The number of X-ray sources of each type in the Galaxy is estimated.Astrophysics and Space Science review paper.