Pulsar timing arrays (PTAs) are galactic-scale gravitational wave (GW) detectors. Each
individual arm, composed of a millisecond pulsar, a radio telescope, and a kiloparsecs-long …

Pulsar timing arrays (PTAs) are designed to detect low-frequency gravitational waves (GWs).
GWs induce achromatic signals in PTA data, meaning that the timing delays do not depend …

Context. Interstellar scintillation (ISS) of pulsar emission can be used both as a probe of the
ionized interstellar medium (IISM) and cause corruptions in pulsar timing experiments. Of …

We report on observations of PSR B1508+ 55's scintillation at the Effelsberg 100-m
telescope spanning from early 2020 to early 2022. In the autumn of 2020, close to the time …

The stability of the spin of pulsars and the precision with which these spins can be
determined, allows many unique tests of interest to physics and astrophysics. Perhaps the …

The classic, two-component, crust-superfluid model of a neutron star can be formulated as a
noise-driven, linear dynamical system, in which the angular velocities of the crust and …

Propagation effects in the interstellar medium and intrinsic profile changes can cause
variability in the timing of pulsars, which limits the accuracy of fundamental science done via …

We simulate scattering delays from the interstellar medium to examine the effectiveness of
three estimators in recovering these delays in pulsar timing data. Two of these estimators …

Broadband radio waves emitted from pulsars are distorted and delayed as they propagate
toward the Earth due to interactions with the free electrons that compose the interstellar …

This paper demonstrates the impact of state-of-the-art instrumental calibration techniques on
the precision of arrival times obtained from 9.6 yr of observations of millisecond pulsars …