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Timing Noise Analysis of NANOGrav Pulsars
Delphine Perrodin, Fredrick Jenet, Andrea Lommen +7
We analyze timing noise from five years of Arecibo and Green Bank observations of the seventeen millisecond pulsars of the North-American Nanohertz Observatory for Gravitational Wa…
Broadband Pulsations from PSR B1821-24: Implications for Emission Models and the Pulsar Population of M28
T. J. Johnson, L. Guillemot, M. Kerr +27
We report a 5.4σ detection of pulsed gamma rays from PSR B1821-24 in the globular cluster M28 using ~44 months of Fermi Large Area Telescope (LAT) data that have been reprocessed w…
High-Angular-Resolution and High-Sensitivity Science Enabled by Beamformed ALMA
Vincent Fish, Walter Alef, James Anderson +66
An international consortium is presently constructing a beamformer for the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile that will be available as a facility instrum…
Searching for pulsars using image pattern recognition
W. W. Zhu, A. Berndsen, E. C. Madsen +41
In this paper, we present a novel artificial intelligence (AI) program that identifies pulsars from recent surveys using image pattern recognition with deep neural nets---the PICS…
A Radio-Selected Black Hole X-ray Binary Candidate in the Milky Way Globular Cluster M62
Laura Chomiuk, Jay Strader, Thomas J. Maccarone +5
We report the discovery of a candidate stellar-mass black hole in the Milky Way globular cluster M62. We detected the black hole candidate, which we term M62-VLA1, in the core of t…
VLBI astrometry of PSR J2222-0137: a pulsar distance measured to 0.4% accuracy
A. T. Deller, J. Boyles, D. R. Lorimer +5
The binary pulsar J2222-0137 is an enigmatic system containing a partially recycled millisecond pulsar and a companion of unknown nature. Whilst the low eccentricity of the system…
The Second Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
LAT collaboration
This catalog summarizes 117 high-confidence > 0.1 GeV gamma-ray pulsar detections using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite. Half…
Swings between rotation and accretion power in a millisecond binary pulsar
A. Papitto, C. Ferrigno, E. Bozzo +20
It is thought that neutron stars in low-mass binary systems can accrete matter and angular momentum from the companion star and be spun-up to millisecond rotational periods. During…
A Massive Pulsar in a Compact Relativistic Binary
John Antoniadis, Paulo C. C. Freire, Norbert Wex +19
Many physically motivated extensions to general relativity (GR) predict significant deviations in the properties of spacetime surrounding massive neutron stars. We report the measu…
Timing and Interstellar Scattering of Thirty-five Distant Pulsars Discovered in the PALFA Survey
D. J. Nice, E. Altiere, S. Bogdanov +34
We have made extensive observations of 35 distant slow (non-recycled) pulsars discovered in the ongoing Arecibo PALFA pulsar survey. Timing observations of these pulsars over sever…
GMRT discovery of PSR J1544+4937, an eclipsing black-widow pulsar identified with a Fermi LAT source
B. Bhattacharyya, J. Roy, P. S. Ray +17
Using the Giant Metrewave Radio Telescope (GMRT) we performed deep observations to search for radio pulsations in the directions of unidentified Fermi Large Area Telescope (LAT) ga…
The Einstein@Home search for radio pulsars and PSR J2007+2722 discovery
B. Allen, B. Knispel, J. M. Cordes +43
Einstein@Home aggregates the computer power of hundreds of thousands of volunteers from 193 countries, to search for new neutron stars using data from electromagnetic and gravitati…
Discovery of the Optical Counterparts to Four Energetic Fermi Millisecond Pulsars
R. P. Breton, M. H. van Kerkwijk, M. S. E. Roberts +6
In the last few years, over 43 millisecond radio pulsars have been discovered by targeted searches of unidentified gamma-ray sources found by the Fermi Gamma-Ray Space Telescope. A…
Six millisecond pulsars detected by the Fermi Large Area Telescope and the radio/gamma-ray connection of millisecond pulsars
C. M. Espinoza, L. Guillemot, O. Celik +23
We report on the discovery of gamma-ray pulsations from five millisecond pulsars (MSPs) using the Fermi Large Area Telescope (LAT) and timing ephemerides provided by various radio…
Pulsar searches of Fermi unassociated sources with the Effelsberg telescope
E. D. Barr, L. Guillemot, D. J. Champion +20
Using the 100-m Effelsberg radio telescope operating at 1.36 GHz, we have performed a targeted radio pulsar survey of 289 unassociated gamma-ray sources discovered by the Large Are…