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Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
Despite its importance to our understanding of physics at supranuclear densities, the equation of state (EoS) of matter deep within neutron stars remains poorly understood. Millisecond pulsars (MSPs)
PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
Neutron stars are not only of astrophysical interest, but are also of great interest to nuclear physicists because their attributes can be used to determine the properties of the dense matter in
The NANOGrav Nine-year Data Set: Mass and Geometric Measurements of Binary Millisecond Pulsars
We analyze 24 binary radio pulsars in the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) nine-year data set. We make fourteen significant measurements of Shapiro delay,
The Velocity distribution of isolated radio pulsars
We infer the velocity distribution of radio pulsars based on large-scale 0.4 GHz pulsar surveys. We do so by modeling the evolution of the locations, velocities, spins, and radio luminosities of
A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
We report on Bayesian parameter estimation of the mass and equatorial radius of the millisecond pulsar PSR J0030+0451, conditional on pulse-profile modeling of Neutron Star Interior Composition
Timing behavior of 96 radio pulsars
We present results from observations of 104 pulsars made between 1989 August and 1993 April, including timing solutions for 96 of them. Pulse profiles were recorded at four frequencies in the range
An astronomical pattern-matching algorithm for computer-aided identification of whale sharks Rhincodon typus
A novel technique for identifying individual whale sharks Rhincodon typus through numerical pattern matching of their natural surface 'spot' colourations is described, which is robust in that the incidence of false positives is low and failure to match images of the same shark is predominantly attributable to foreshortening in photographs obtained at oblique angles of more than 30°.
An Eccentric Binary Millisecond Pulsar in the Galactic Plane
In a survey with the Arecibo telescope, a radio pulsar with a rotational period of 2.15 milliseconds in a highly eccentric orbit around a solar mass is found and infrared observations identify a possible main-sequence companion star.
The NANOGrav 12.5 yr Data Set: Search for an Isotropic Stochastic Gravitational-wave Background
We search for an isotropic stochastic gravitational-wave background (GWB) in the $12.5$-year pulsar timing data set collected by the North American Nanohertz Observatory for Gravitational Waves
Arecibo pulsar survey using ALFA. I. Survey strategy and first discoveries
We report results from the initial stage of a long-term pulsar survey of the Galactic plane using the Arecibo L-band Feed Array (ALFA), a seven-beam receiver operating at 1.4 GHz with 0.3 GHz