Observations of pulsars at 14.8 and 22.7 GHz

Astronomy and Astrophysics – Astronomy

Scientific paper

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Microwave Spectra, Pulsars, Radio Astronomy, Electromagnetic Pulses, Graphs (Charts)

Scientific paper

Using the 100-m telescope of the MPIfR equipped with cryogenically cooled parametric amplifiers at 14.8 and 22.7 GHz, observations have been made of a sample of strong pulsars. Eight pulsars could be detected at 14.8 GHz and two at 22.7 GHz. The measured mean pulse energies and pulse widths suggest that there is no qualitative change of the radio emission mechanism at high frequencies. It is shown that the spectra of the single components of PSR 1133+16 have a different behavior compared to that of the whole pulse, which may be true also for other pulsars.

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