A&A Supplement series, Vol. 127, January II 1998, 153-165

Received 27 March; accepted 25 April, 1997

Pulse shapes of radio pulsars at 4.85 GHz

J. Kijak, M. Kramer, R. Wielebinski, - A. Jessner

Send offprint request: jkijak@astro.ca.wsp.zgora.pl

  Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
  Astronomy Centre, Pedagogical University, Lubuska 2, PL-65-265 Zielona Góra, Poland

Abstract:

We present pulse shapes of 87 pulsars at 4.85 GHz. Pulse widths and flux densities are measured. The frequency dependence of the profile shape and the pulse width is discussed. Our data base has been combined with other published data to generate flux spectra between 1.4 GHz and 5 GHz. The mean flux spectral index has a value -1.9. Our analysis shows that pulsar emission spectra are steeper at higher frequencies.

keywords: pulsars: general -- radiation mechanisms: miscellaneous

• 1. Introduction
• 2. Observations
• 3. Results
• 4. Discussion and conclusions
• References