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The NANOGrav Nine-year Data Set: Limits on the Isotropic Stochastic Gravitational Wave Background
Zaven Arzoumanian, Adam Brazier, Sarah Burke-Spolaor +45
We compute upper limits on the nanohertz-frequency isotropic stochastic gravitational wave background (GWB) using the 9-year data release from the North American Nanohertz Observat…
The NANOGrav Nine-year Data Set: Observations, Arrival Time Measurements, and Analysis of 37 Millisecond Pulsars
Z. Arzoumanian, A. Brazier, S. Burke-Spolaor +41
We present high-precision timing observations spanning up to nine years for 37 millisecond pulsars monitored with the Green Bank and Arecibo radio telescopes as part of the North A…
Einstein@Home Discovery of a PALFA Millisecond Pulsar in an Eccentric Binary Orbit
B. Knispel, A. G. Lyne, B. W. Stappers +37
We report the discovery of the millisecond pulsar (MSP) PSR J1950+2414 ( ms) in a binary system with an eccentric () 22-day orbit in Pulsar ALFA survey observations…
Arecibo Pulsar Survey Using ALFA. IV. Mock Spectrometer Data Analysis, Survey Sensitivity, and the Discovery of 41 Pulsars
P. Lazarus, A. Brazier, J. W. T. Hessels +31
The on-going PALFA survey at the Arecibo Observatory began in 2004 and is searching for radio pulsars in the Galactic plane at 1.4 GHz. Observations since 2009 have been made with…
Learning from FITS: Limitations in use in modern astronomical research
Brian Thomas, Tim Jenness, Frossie Economou +35
The Flexible Image Transport System (FITS) standard has been a great boon to astronomy, allowing observatories, scientists and the public to exchange astronomical information easil…
NANOGrav Constraints on Gravitational Wave Bursts with Memory
Z. Arzoumanian, A. Brazier, S. Burke-Spolaor +39
Among efforts to detect gravitational radiation, pulsar timing arrays are uniquely poised to detect "memory" signatures, permanent perturbations in spacetime from highly energetic…
Timing of five millisecond pulsars discovered in the PALFA survey
P. Scholz, V. M. Kaspi, A. G. Lyne +31
We present the discovery of five millisecond pulsars (MSPs) from the PALFA Galactic plane survey using Arecibo. Four of these (PSRs J0557+1551, J1850+0244, J1902+0300, and J1943+22…