Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-26T02:18:15.952Z Has data issue: false hasContentIssue false
  • English
  • Français

Pulse profiles of millisecond pulsars

Published online by Cambridge University Press:  12 April 2016

Ray Jayawardhana  and
Jonathan E. Grindlay
Ray Jayawardhana
Affiliation:
Harvard-Smithsonian Center for Astrophysics
Jonathan E. Grindlay
Affiliation:
Harvard-Smithsonian Center for Astrophysics

Extract

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.

We present a comparison between the average radio pulse profiles of millisecond pulsars (MSPs) in the field and in globular clusters. Our sample consists of 20 field MSPs and 25 cluster MSPs for which observations exist at 400 - 600 MHz.

We find that 6 of the 20 field MSPs, or about 30%, have a comparable interpulse at a phase offset of 180 ±30 degrees. None of the cluster objects shows this feature. Here we define a ‘comparable interpulse’ as one whose intensity is at least 10% of the primary pulse. This lower limit is well above the noise level of all the profiles in our sample. While the cluster MSPs have much more poorly resolved profiles at present than field MSPs, it is unlikely that a strong interpulse near 180 degrees could be ‘hidden’ within the primary peak.

Type
Part 4 Radio Properties
Information
International Astronomical Union Colloquium , Volume 160: Pulsars: Problems and Progress , 1996 , pp. 231 - 232
Copyright
Copyright © Astronomical Society of the Pacific 1996