Single Epoch Measurements of Dispersion Measure Gradients towards PSR B0834+06
Abstract
Abstract Understanding the evolution of pulsar dispersion measures is vital to high-precision timing experiments, as well as astrometric experiments to determine pulsar positions and proper motions. In this work, we present a novel approach to measuring dispersion measure gradients using pulsar scintillometry. This approach makes use of the multipath propagation through the interstellar medium to simultaneously probe dispersion measures along multiple sight lines from a single observation. Using existing data of PSR B0834+06, we are able to measure gradients of 9.7 ± 0.3 × 10 −6 pc cm −3 mas −1 .
Fields of Study & Subjects
Pulsars and Gravitational Waves Research
Radio Astronomy Observations and Technology
Advanced Frequency and Time Standards
Publication details
- Journal / source
- The Astrophysical Journal
- Volume
- 1002
- Issue
- 1
- Pages
- 46–46
- Publication date
- 24 April 2026
- Language
- EN