Brian Seymour

Brian Seymour
University of Virginia | UVa · Department of Physics

Bachelor of Science

About

8
Publications
60
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71
Citations

Publications

Publications (8)
Article
Precision tests of general relativity (GR) can be conducted by observing binary pulsars. Theories with massive fields exist to explain a variety of phenomena from dark energy to the strong CP problem. Existing pulsar binaries, such as the white dwarf-pulsar binary J1738+0333, have been used to place stringent bounds on the scalar dipole emission, a...
Preprint
Precision tests of general relativity can be conducted by observing binary pulsars. Theories with massive fields exist to explain a variety of phenomena from dark energy to the strong CP problem. Existing pulsar binaries, such as the white dwarf-pulsar binary J1738+0333, have been used to place stringent bounds on the scalar dipole emission, and ra...
Article
Full-text available
Pulsar timing observations precisely test general relativity. Recently, the hierarchical triple system PSR J0337 + 1715 has placed new constraints on the existence of a fifth force from violation in the strong equivalence principle. Many alternative gravity theories exist with massive (pseudo-)scalar fields to explain a variety of phenomena from th...
Article
Full-text available
The extreme-gravity collisions of binaries with one black hole and one neutron star provide for excellent tests of general relativity (GR). We here study how well one can constrain theories beyond GR with additional scalar fields that allow for spontaneous scalarization of neutron stars, and those motivated from string theory. We find that existing...
Preprint
Pulsar timing observations precisely test general relativity. The hierarchical triple system PSR J0337+1715 has placed new constraints on the existence of the fifth force. We here develop a generic formalism for the fifth force effect in theories involving massive scalar fields arising from e.g. string theory. With PSR J0337 measurements, we find t...
Preprint
The extreme-gravity collisions of binaries with one black hole and one neutron star provide for excellent tests of general relativity. We here study how well one can constrain theories beyond general relativity with additional scalar fields that allow for spontaneous scalarization of neutron stars, and those motivated from string theory. We find th...
Article
Binary pulsars allow us to carry out precision tests of gravity and have placed stringent bounds on a broad class of theories beyond general relativity. Current and future radio telescopes, such as FAST, SKA, and MeerKAT, may find a new astrophysical system, a pulsar orbiting around a black hole, which will provide us a new source for probing gravi...
Preprint
Binary pulsars allow us to carry out precision tests of gravity and have placed stringent bounds on a broad class of theories beyond general relativity. Current and future radio telescopes, such as FAST and SKA, may find a new astrophysical system, a pulsar orbiting around a black hole, which will provide us a new source for probing gravity. In thi...

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