A Pulsar-Based Map of Galactic Acceleration

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 ${\rho }_{\mathrm{d}}=0.040_{-0.020}^{+0.020}{\mathrm{M}}_{\odot }{\mathrm{pc}}^{-3}$. We also find evidence for unmodeled noise of unknown origin in our data set.

12 pages, 7 figures

References in corpus (19)

• Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3
• The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
• The NANOGrav 15-year Data Set: Observations and Timing of 68 Millisecond Pulsars
• On the local dark matter density
• The second data release from the European Pulsar Timing Array I. The dataset and timing analysis
• Strong-field Gravity Tests with the Double Pulsar
• Pulsar Timing Probes of Primordial Black Holes and Subhalos
• The Parkes pulsar timing array second data release: Timing analysis
• A Milky Way with a massive, centrally concentrated thick disc: new Galactic mass models for orbit computations
• Closing a spontaneous-scalarization window with binary pulsars
• PSR J2222--0137. I. Improved physical parameters for the system
• Neutron Stars with Baryon Number Violation, Probing Dark Sectors
• Implications of a time-varying Galactic potential for determinations of the dynamical surface density
• Why are pulsar planets rare?
• Eclipse timing the Milky Way's gravitational potential
• A search for planetary companions around 800 pulsars from the Jodrell Bank pulsar timing programme
• Seeing the gravitational wave universe
• Non-equilibrium in the Solar Neighbourhood using dynamical modelling with Gaia DR2
• Galactic Orbital Effects on Pulsar Timing

Cited by in corpus (2)

• LISA double white dwarf binaries as Galactic accelerometers
• Probing Picohertz Gravitational Waves with Pulsars