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  • GRB radio counterparts  (1)
  • γ-rays  (1)
  • 1
    Digitale Medien
    Digitale Medien
    A search for prompt radio emission from GRBs (1995)
    Springer
    Astrophysics and space science 231 (1995), S. 281-284 
    Details
    ISSN: 1572-946X
    Schlagwort(e): GRB radio counterparts ; BACODINE
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The Cambridge Low Frequency Synthesis Telescope (CLFST) is being used to search for prompt radio emission from GRBs at 151 MHz. For this search a special observing mode has recently been developed; the antennas of the CLFST are split into seven groups which are spaced about 30° apart. When triggered by the real-time signals from the BACODINE system the antennas are slewed to the GRB position, with data being sampled at 1.5 or 3-s intervals. The antennas slew at about 10° per minute, so that an appreciable fraction of the sky can be accessed on timescales of a few minutes - any prompt radio emission from a GRB might be delayed by this timescale due to propagation effects.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00658632
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Hard X-ray all-sky imaging with BATSE/CGRO (1995)
    Springer
    Experimental astronomy 6 (1995), S. 57-62 
    Details
    ISSN: 1572-9508
    Schlagwort(e): γ-rays ; Imaging-Earth Occultation ; Radon Transform ; Maximum Entropy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The large Area Detectors (LADs) of the BATSE experiment aboard the Compton Gamma-ray Observatory have been used recently as the first hard X-ray all-sky imager at energies between 20 keV and 300 keV. The Earth occultation process is formulated in terms of a curved Radon transform convoluted by a step transform in a selected field of view (FOV) ranging from 5°×5° to 40°×40°. The Maximum Entropy Method is then used to reconstruct an image in the hard X-ray sky. Multiple images of different regions of the sky can be produced simultaneously. A source location accuracy of 0.1° for strong sources and a sensitivity limit of 100 mCrab have been achieved in an one-day integration period.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00419258
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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