Hostname: page-component-cc8bf7c57-n7qbj Total loading time: 0 Render date: 2024-12-12T07:55:01.615Z Has data issue: false hasContentIssue false
  • English
  • Français

Low Frequency Emission Regions in Pulsars

Published online by Cambridge University Press:  26 May 2016

Jaroslaw Kijak
Jaroslaw Kijak*
Affiliation:
J. Kepler Astronomical Center, Pedagogical University, Lubuska 2, PL-65-265 Zielona Góra, Poland

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The systematic increase of component separation and profile widths with decreasing frequency in pulsars suggests that the radiation at different frequencies is emitted from different altitudes above the polar cap. This concept is known as the radius-to-frequency mapping. According to RFM the observed low-frequency radiation should be generated farther from the neutron star than higher-frequency radiation. We discuss radial locations of the pulsar emission regions using a geometrical method for the estimation of emission altitudes. It is argued that the emission altitude at a given frequency is slightly different for young and old pulsars.

Type
Part 7: Pulsars and other Compact Galactic Objects
Information
Symposium - International Astronomical Union , Volume 199: The Universe at Low Radio Frequencies , 2002 , pp. 377 - 378
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Gupta, Y., Bhat, N. D. R., Rao, A. P. 1999, ApJ, 520, 173 CrossRefGoogle Scholar
Kijak, J., Gil, J. 1997, MNRAS, 288, 631 CrossRefGoogle Scholar
Kijak, J., Gil, J. 1998, MNRAS, 299, 855 CrossRefGoogle Scholar