Published June 10, 2024 | Version v1
Journal article

Pulsar-based map of galactic acceleration

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

Description

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.

Additional details

Identifiers

DOI
10.1103/PhysRevD.109.123015;
arXiv
arXiv:2306.13137;
Crossref Funder ID
10.13039/100000893; 10.13039/100000001; 10.13039/100000104;

Publishing Information

Journal Title
Physical Review D
Journal Volume
109
Journal Issue
12
Journal Page Range
11 pgs.
ISSN
1089-4918

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ACCELERATION; ASTROPHYSICS; BINARY STARS; COMPARATIVE EVALUATIONS; DENSITY; GALAXY NUCLEI; MAPS; MILKY WAY; NEUTRON STARS; ORIGIN; POTENTIALS; PROBES; PULSARS; STAR CLUSTERS; STELLAR ACTIVITY; STELLAR MAGNETOSPHERES

Optional Information

Copyright
© 2024 American Physical Society
Contract/Grant/Project number
NSF PHY-1748958; PHY-2020265; AST-2106552; PHY-2210551; P-1935
Notes
Contact Email: abigail.moran@columbia.edu; Record automatically processed
Funding organization
Simons Foundation; National Science Foundation; National Aeronautics and Space Administration