Pulsar-based map of galactic acceleration

Abigail Moran, Chiara M. F. Mingarelli, Ken Van Tilburg, and Deborah Good
Phys. Rev. D 109, 123015 – Published 10 June 2024

Abstract

Binary pulsars can be used to probe Galactic potential gradients through calculating their line-of-sight accelerations. We present the first data release of direct line-of-sight acceleration measurements for 29 binary pulsars. We validate these data with a local acceleration model, and compare our results to those from earlier works. We find evidence for an acceleration gradient in agreement with these values, with our results indicating a local disk density of ρd=0.0400.020+0.020Mpc3. We also find evidence for unmodeled noise of unknown origin in our dataset.

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  • Received 28 July 2023
  • Accepted 1 May 2024

DOI:https://doi.org/10.1103/PhysRevD.109.123015

© 2024 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Abigail Moran1,2,*, Chiara M. F. Mingarelli3,2,4, Ken Van Tilburg4,5, and Deborah Good6,2,4

  • 1Department of Astronomy, Columbia University, New York, New York 10027, USA
  • 2Department of Physics, University of Connecticut, 196 Auditorium Road, U-3046, Storrs, Connecticut 06269-3046, USA
  • 3Department of Physics, Yale University, New Haven, Connecticut 06520, USA
  • 4Center for Computational Astrophysics, Flatiron Institute, 162 Fifth Avenue, New York, New York 10010, USA
  • 5Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, New York 10003, USA
  • 6Department of Physics and Astronomy, University of Montana, 32 Campus Drive, Missoula, Montana 59812, USA

  • *abigail.moran@columbia.edu

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Issue

Vol. 109, Iss. 12 — 15 June 2024

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