skip to main content

SciTech ConnectSciTech Connect

Title: TIMING AND INTERSTELLAR SCATTERING OF 35 DISTANT PULSARS DISCOVERED IN THE PALFA SURVEY

We have made extensive observations of 35 distant slow (non-recycled) pulsars discovered in the ongoing Arecibo PALFA pulsar survey. Timing observations of these pulsars over several years at Arecibo Observatory and Jodrell Bank Observatory have yielded high-precision positions and measurements of rotation properties. Despite being a relatively distant population, these pulsars have properties that mirror those of the previously known pulsar population. Many of the sources exhibit timing noise, and one underwent a small glitch. We have used multifrequency data to measure the interstellar scattering properties of these pulsars. We find scattering to be higher than predicted along some lines of sight, particularly in the Cygnus region. Finally, we present XMM-Newton and Chandra observations of the youngest and most energetic of the pulsars, J1856+0245, which has previously been associated with the GeV-TeV pulsar wind nebula HESS J1857+026.
Authors:
 [1] ; ; ; ;  [2] ; ;  [3] ; ; ;  [4] ;  [5] ;  [6] ; ;  [7] ;  [8] ;  [9] ;  [10] ;  [11] ;  [12] ;  [13] more »; « less
  1. Department of Physics, Lafayette College, Easton, PA 18042 (United States)
  2. Department of Physics, Bryn Mawr College, Bryn Mawr, PA 19010 (United States)
  3. Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States)
  4. Astronomy Department, Cornell University, Ithaca, NY 14853 (United States)
  5. ASTRON, The Netherlands Institute for Radio Astronomy, Postbus 2, 7990-AA Dwingeloo (Netherlands)
  6. Department of Physics, McGill University, Montreal, QC H3A 2T8 (Canada)
  7. Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)
  8. NRAO, Charlottesville, VA 22903 (United States)
  9. Department of Astronomy, University of Virginia, Charlottesville, VA 22903 (United States)
  10. Max-Planck-Institut fuer Gravitationsphysik, D-30167 Hannover (Germany)
  11. Center for Astrophysics and Supercomputing, Swinburne University, Hawthorn, Victoria 3122 (Australia)
  12. Max-Planck-Institut fuer Radioastronomie, D-53121 Bonn (Germany)
  13. Department of Physics and Astronomy, Franklin and Marshall College, Lancaster, PA 17604-3003 (United States)
Publication Date:
OSTI Identifier:
22121853
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 772; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCURACY; GEV RANGE; NEBULAE; PULSARS; RADIO NOISE; ROTATION; SCATTERING; STELLAR WINDS; TELESCOPES; TEV RANGE