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The NANOGrav Nine-Year Data Set: Measurement and Interpretation of Variations in Dispersion Measures
M. L. Jones, M. A. McLaughlin, M. T. Lam +21
We analyze dispersion measure (DM) variations of 37 millisecond pulsars in the 9-year NANOGrav data release and constrain the sources of these variations. Variations are significan…
Einstein@Home discovery of a Double-Neutron Star Binary in the PALFA Survey
P. Lazarus, P. C. C. Freire, B. Allen +29
We report here the Einstein@Home discovery of PSR J1913+1102, a 27.3-ms pulsar found in data from the ongoing Arecibo PALFA pulsar survey. The pulsar is in a 4.95-hr double neutron…
Two long-term intermittent pulsars discovered in the PALFA Survey
A. G. Lyne, B. W. Stappers, P. C. C. Freire +31
We report the discovery of two long-term intermittent radio pulsars in the ongoing Arecibo PALFA pulsar survey. Following discovery with the Arecibo Telescope, extended observation…
Timing of 29 Pulsars Discovered in the PALFA Survey
A. G. Lyne, B. W. Stappers, S. Bogdanov +33
We report on the discovery and timing observations of 29 distant long-period pulsars discovered in the ongoing Arecibo PALFA pulsar survey. Following discovery with the Arecibo Tel…
Time-domain and spectral properties of pulsars at 154 MHz
M. E. Bell, Tara Murphy, S. Johnston +35
We present 154 MHz Murchison Widefield Array imaging observations and variability information for a sample of pulsars. Over the declination range we…
PSR J1024-0719: A Millisecond Pulsar in an Unusual Long-Period Orbit
D. L. Kaplan, T. Kupfer, D. J. Nice +32
PSR J10240719 is a millisecond pulsar that was long thought to be isolated. However, puzzling results concerning its velocity, distance, and low rotational period derivative hav…
The NANOGrav Nine-year Data Set: Mass and Geometric Measurements of Binary Millisecond Pulsars
Emmanuel Fonseca, Timothy T. Pennucci, Justin A. Ellis +17
We analyze 24 binary radio pulsars in the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) nine-year data set. We make fourteen significant measurements of S…
The International Pulsar Timing Array: First Data Release
J. P. W. Verbiest, L. Lentati, G. Hobbs +89
The highly stable spin of neutron stars can be exploited for a variety of (astro-)physical investigations. In particular arrays of pulsars with rotational periods of the order of m…
The NANOGrav Nine-year Data Set: Monitoring Interstellar Scattering Delays
Lina Levin, Maura A. McLaughlin, Glenn Jones +22
We report on an effort to extract and monitor interstellar scintillation parameters in regular timing observations collected for the NANOGrav pulsar timing array. Scattering delays…