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  • 1
    Electronic Resource
    Electronic Resource
    Variable X-ray source near Cen X-3 (1975)
    [s.l.] : Nature Publishing Group
    Nature 254 (1975), S. 577-578 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Counting rate of variable source in Centaurus region as a function of time after subtraction of background. The symbol circle with a vertical bar indicates typical ±la values near the maximum intensity; as noted in the text this arises partly from fluctuations in source strength on ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/254577a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Observations of a transient X-ray source with a period of 104 s (1975)
    [s.l.] : Nature Publishing Group
    Nature 256 (1975), S. 628-630 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Figure 1 shows the observed count rate from A05354-26 as a function of time in units of counts s 1 in the 3-7 keV range corrected for the collimator response. Intensities before April 21 were obtained by overlaying several orbits of data together. An approximate ratio between Uhuru counts and the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/256628a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    X-ray outburst from the direction of the galactic centre (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 291-293 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Figure 1 shows the intensity variation of the new source. Observations were made primarily in the photon energy range 3.0 to 7.5 keV although some data were obtained in the range 4.6-12 keV. Each plotted point represents observations spread over a period of one orbit (101 min). The RMC experiment ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/257291a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Crystal spectrometer studies of the Sun employing a rotation modulation collimator (1975)
    Springer
    Solar physics 42 (1975), S. 355-376 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The use of rotating modulation collimators in high resolution solar X-ray spectroscopy is discussed with reference to the recent flight of a sounding rocket payload. This rocket carried an experiment which combined a modulation collimator and a Bragg crystal spectrometer to make moderately high resolution spectral and spatial measurements simultaneously. The response of the instrument to extended sources is described. It is shown that the technique is particularly suited to long term observations of active region emission, but that useful measurements can be made even during a short rocket flight. Our observations were made in 1972 October 26 between 0432 UT and 0436 UT. During the flight a scan of the solar X-ray spectrum was made which covered the wavelength range 1.45–1.71 nm. A small flare commenced at about 0432 UT in McMath calcium plage region 12094; the emission from this provided the major contribution to the observed spectrum. X-ray emission from a group of active regions in the SW and the small McMath region 12090 has also been detected. Spectral and spatial observations have been combined to investigate the conditions in both active region and flare plasmas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00149918
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