Titlebook: Non-Solar X- and Gamma-Ray Astronomy; L. Gratton Book 1970 International Astronomical Union 1970 astronomy.instruments.neutron star.observ

骑师

A Survey of Instruments and Experiments for X-ray Astronomy,many competing techniques have been devised for any given type of observation and that there has been a progression to increasingly sophisticated instruments. But most of this diversity is real and simply reflects the very broad range of observations that can be performed and the different kinds of

狂热文化

muscle-fibers

Upper-Air Fluorescence as a Tool in X-ray Astronomy and Searches for X-rays from NP 0532 and Other background of the upper-air fluorescence technique as a viable ground-based tool for studies of cosmic X-rays. After a discussion of the characteristics, merits and limitations of the technique, we describe some preliminary experiments which have been carried out, both separately and also jointly, w

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Properties of Individual X-Ray Sources,te. These data have been obtained using actively collimated scintillation counters with apertures between 6 and 24º FWHM, areas between 10 and 50 cm. and which operate over the 10–300 keV range. The Crab Nebula has been observed on three occasions over a 22-month period between September 1965 and Ju

Laconic

运动性

X-ray Flux from Discrete Sources,, on November 3, 1968, and November 7, 1968, respectively, are presented. The results indicate the first evidence for the existence of low energy X-ray flux in the energy range 2–20 keV from Cen-X2 source since the reported extinction in May, 1967. The energy spectrum and the absolute flux of X-rays

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闹剧

Sudden Changes in the Intensity of High Energy X-rays from Sco X-1,erval 29.9–52.3 keV on December 22, 1968 between 04 h 27 m and 05 h 53 m UT. The observation was made with an X-ray telescope flown in a balloon from Hyderabad, India. The balloon was launched at 0200 hr UT and reached the ceiling of 7.5 g/cm. of residual atmosphere at 0435 hr UT. The X-ray telescop

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