"あわら"宇宙電波受信システムによる巨大ブラックホール起源・銀河中心デシメータ及びセンチメータ波帯電波パルスの観測研究

概要

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The second year program of observations of radio wave pulses from super massive black holes located in the center region of our Galaxy have been made by cosmic radio observation system at the Awara campus of Fukui University of Technology ,in the frequency range of the decimeter (1.4GHz bands) and centimeter waves at 8.4 GHz (X band). Analyses of the data utilizing the FFT and box-car methods give further confirmation to the results that the detected pulse periods correspond to rotations of radio sources located in regions close to the event horizon of the rotating black holes. The radio sources for longer wavelength radio waves are located closer potions with respect to the event horizon of the Kerr black hole compared to the sources for shorter wavelength range, due to general relativity effects. New three pulses with periods of 270.083 sec, 210.080 sec and 145.773 sec have been found; adding these new sources, the ratio of transformation of rotation periods of black holes to the mass, in terms of the solar mass unit, is deduced to be 2240T for the period of T sec.