2009/01/31 by J. L. Han, P. B. Demorest, Paul B. Demorest +2 · 2 citations
Earth and Planetary Sciences · Physics and Astronomy · #Advanced Frequency and Time Standards #Geophysics and Gravity Measurements #Pulsars and Gravitational Waves Research #astro-ph.SR
paper · pdf · doi:10.1088/0067-0049/181/2/557
published as ApJS 181, 557 (2009) · 16 pages. Figures for profiles for 100 pulsars, including several calibrators. Published by ApJS
openalex publication_date 2009/03/24 · arxiv created 2009/03/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
We report on polarimetric observations of 100 pulsars centered on 774 MHz, made using the Green Bank Telescope, presenting their polarization profiles and polarized flux densities and comparing them with previous observations when possible. For 67 pulsars, these are the first such measurements made. Polarization profiles of 8 millisecond-pulsars in our sample show wide profiles and flat position-angle curves. Strong linear polarization, sometimes approaching 100% of the total intensity, has been detected in all or a part of the average pulse profiles of some pulsars. In general, circular polarization is very weak, although it is observed to be extremely strong in the leading component of PSR J1920+2650. Sense reversal of circular polarization as a function of pulse phase has been detected from both core and other components of more than 20 pulsars. Any relationship between the spin-down luminosity and the percentage of linear polarization is not evident in our data at this frequency.