Results 11 to 20 of about 40,021 (212)

The NANOGrav 15 yr Data Set: Observations and Timing of 68 Millisecond Pulsars [PDF]

open access: yesAstrophysical Journal Letters, 2023
We present observations and timing analyses of 68 millisecond pulsars (MSPs) comprising the 15 yr data set of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav).
G. Agazie   +99 more
semanticscholar   +1 more source

Hellings and Downs correlation of an arbitrary set of pulsars [PDF]

open access: yesPhysical Review D, 2022
Pulsar timing arrays (PTAs) detect gravitational waves (GWs) via the correlations they induce in the arrival times of pulses from different pulsars. We assume that the GWs are described by a Gaussian ensemble. The mean correlation $h^2 \mu_{\rm u}(\gamma)
B. Allen, J. Romano
semanticscholar   +1 more source

FAST Globular Cluster Pulsar Survey: Twenty-four Pulsars Discovered in 15 Globular Clusters [PDF]

open access: yesAstrophysical Journal Letters, 2021
We present the discovery of 24 pulsars in 15 globular clusters (GCs) using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). These include the first pulsar discoveries in M2, M10, and M14.
Z. Pan   +10 more
semanticscholar   +1 more source

Searches for Gravitational Waves from Known Pulsars at Two Harmonics in the Second and Third LIGO-Virgo Observing Runs [PDF]

open access: yes, 2021
We present a targeted search for continuous gravitational waves (GWs) from 236 pulsars using data from the third observing run of LIGO and Virgo (O3) combined with data from the second observing run (O2).
The Ligo Scientific Collaboration   +499 more
semanticscholar   +1 more source

The Third Fermi Large Area Telescope Catalog of Gamma-Ray Pulsars

open access: yesAstrophysical Journal, 2023
We present 294 pulsars found in GeV data from the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope. Another 33 millisecond pulsars (MSPs) discovered in deep radio searches of LAT sources will likely reveal pulsations once phase-connected
D. A. Smith   +170 more
semanticscholar   +1 more source

FRB Periodicity: Mild Pulsars in Tight O/B-star Binaries [PDF]

open access: yesAstrophysical Journal, 2020
Periodicities observed in two fast radio burst (FRB) sources (16 days in FRB 180916.J0158+65 and 160 days in FRB 121102) are consistent with that of tight, stellar-mass binary systems.
M. Lyutikov, M. Barkov, D. Giannios
semanticscholar   +1 more source

Gravitational-wave Constraints on the Equatorial Ellipticity of Millisecond Pulsars [PDF]

open access: yesAstrophysical Journal Letters, 2020
We present a search for continuous gravitational waves from five radio pulsars, comprising three recycled pulsars (PSR J0437−4715, PSR J0711−6830, and PSR J0737−3039A) and two young pulsars: the Crab pulsar (J0534+2200) and the Vela pulsar (J0835−4510 ...

semanticscholar   +1 more source

The Ups and Downs of Accreting X-Ray Pulsars: Decade-long Observations with the Fermi Gamma-Ray Burst Monitor [PDF]

open access: yesAstrophysical Journal, 2020
We review more than 10 yr of continuous monitoring of accreting X-ray pulsars with the all-sky Gamma-ray Burst Monitor (GBM) aboard the Fermi Gamma-ray Space Telescope.
C. Malacaria   +6 more
semanticscholar   +1 more source

Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth [PDF]

open access: yesScience, 2017
Exotic origin for cosmic positrons Several cosmic-ray detectors have found more positrons arriving at Earth than expected. Some researchers interpret this as a signature of exotic physics, such as the annihilation of dark matter particles.
A. Abeysekara   +115 more
semanticscholar   +1 more source

The NANOGrav 11-year Data Set: High-precision Timing of 45 Millisecond Pulsars [PDF]

open access: yes, 2017
We present high-precision timing data over time spans of up to 11 years for 45 millisecond pulsars observed as part of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) project, aimed at detecting and characterizing low ...
Z. Arzoumanian   +55 more
semanticscholar   +1 more source

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