Publications (37)
Gravitational Wave Astronomy Using Pulsars: Massive Black Hole Mergers & the Early Universe
P. Demorest, J. Lazio, A. Lommen
Gravitational waves (GWs) are fluctuations in the fabric of spacetime predicted by Einstein's theory of general relativity. Using a collection of millisecond pulsars as high-precis…
{Interstellar Plasma Weather Effects in Long-term Multi-frequency Timing of Pulsar B1937+21
R. Ramachandran, P. Demorest, D. C. Backer +2
We report here on variable propagation effects in over twenty years of multi-frequency timing analysis of pulsar PSR B1937+21 that determine small-scale properties of the interveni…
A Bayesian parameter estimation approach to pulsar time-of-arrival analysis
C. Messenger, A. Lommen, P. Demorest +1
The increasing sensitivities of pulsar timing arrays to ultra-low frequency (nHz) gravitational waves promises to achieve direct gravitational wave detection within the next 5-10 y…
The magnetar XTE J1810-197: variations in torque, radio flux density and pulse profile morphology
F. Camilo, I. Cognard, S. M. Ransom +8
We report on 9 months of observations of the radio-emitting anomalous X-ray pulsar XTE J1810-197 starting in 2006 May using the Nancay, Parkes, GBT, and VLA telescopes mainly at a…
VLA Observations of Single Pulses from the Galactic Center Magnetar
R. S. Wharton, S. Chatterjee, J. M. Cordes +6
We present the results of a 7-12 GHz phased-array study of the Galactic center magnetar J1745-2900 with the Karl G. Jansky Very Large Array (VLA). Using data from two 6.5 hour obse…
The direct localization of a fast radio burst and its host
S. Chatterjee, C. J. Law, R. S. Wharton +22
Fast radio bursts are astronomical radio flashes of unknown physical nature with durations of milliseconds. Their dispersive arrival times suggest an extragalactic origin and imply…