Letter | Published:

Duration of Transients in Solar Radio Noise

Nature volume 180, pages 808809 (19 October 1957) | Download Citation



SINCE February this year, high-speed records have been obtained at a frequency of 200 Mc./sec. during solar radio noise storms. The equipment used for the registrations consists of a receiver with bandwidth of 0.3 Mc./sec. and time constant 0.01 sec. and a Brush recorder. Records were secured at various paper speeds, with a speed of 25 mm./sec. as that mostly used, since this speed seems to give the best compromise between the competing factors resolving power, amount of information and paper consumption.

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  1. 1.

    , Nature, 180, 382 (1957).

  2. 2.

    , Nature, 175, 132 (1955).

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  1. Solar Observatory, Institute of Theoretical Astrophysics, University of Oslo. Sept. 9.

    • Ö. ELGARÖY


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