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Pulsar Timing Errors from Asynchronous Multi-Frequency Sampling of Dispersion Measure Variations
M. T. Lam, J. M. Cordes, S. Chatterjee +1
Free electrons in the interstellar medium cause frequency-dependent delays in pulse arrival times due to both scattering and dispersion. Multi-frequency measurements are used to es…
A 24-Hour Global Campaign To Assess Precision Timing of the Millisecond Pulsar J1713+0747
T. Dolch, M. T. Lam, J. M. Cordes +40
The radio millisecond pulsar J1713+0747 is regarded as one of the highest-precision clocks in the sky, and is regularly timed for the purpose of detecting gravitational waves. The…
NANOGrav Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries in Circular Orbits
Z. Arzoumanian, A. Brazier, S. Burke-Spolaor +36
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) project currently observes 43 pulsars using the Green Bank and Arecibo radio telescopes. In this work we…