Document Type
Article
Publication Date
12-20-2016
Abstract
We report the discovery and timing results for five millisecond pulsars (MSPs) from the Arecibo PALFA survey: PSRs J1906+0055, J1914+0659, J1933+1726, J1938+2516, and J1957+2516. Timing observations of the five pulsars were conducted with the Arecibo and Lovell telescopes for time spans ranging from 1.5 to 3.3 years. All of the MSPs except one (PSR J1914+0659) are in binary systems with low eccentricities. PSR J1957+2516 is likely a redback pulsar, with a ∼0.1 M⊙ companion and possible eclipses that last ∼10% of the orbit. The position of PSR J1957+2516 is also coincident with a near-infrared source. All five MSPs are distant (>3.1 kpc) as determined from their dispersion measures, and none of them show evidence of γ-ray pulsations in a fold of Fermi Gamma-Ray Space Telescope data. These five MSPs bring the total number of MSPs discovered by the PALFA survey to 26 and further demonstrate the power of this survey in finding distant, highly dispersed MSPs deep in the Galactic plane.
Recommended Citation
Stovall, K., B. Allen, S. Bogdanov, A. Brazier, F. Camilo, F. Cardoso, S. Chatterjee et al. "Timing of five PALFA-discovered millisecond pulsars." The Astrophysical Journal 833, no. 2 (2016): 192. http://doi.org/10.3847/1538-4357/833/2/192
Publication Title
Astrophysical Journal
DOI
10.3847/1538-4357/833/2/192
Comments
© Astrophysical Journal. Original version available at: http://doi.org/10.3847/1538-4357/833/2/192