Results 11 to 20 of about 64,388 (220)

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

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

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 ...
R. Abbott   +499 more
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   +59 more
semanticscholar   +1 more source

The NANOGrav 12.5 yr Data Set: Observations and Narrowband Timing of 47 Millisecond Pulsars

open access: yesAstrophysical Journal Supplement Series, 2020
We present time-of-arrival (TOA) measurements and timing models of 47 millisecond pulsars observed from 2004 to 2017 at the Arecibo Observatory and the Green Bank Telescope by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav ...
Md F. Alam   +69 more
semanticscholar   +1 more source

Microarcsecond VLBI Pulsar Astrometry with PSRπ II. Parallax Distances for 57 Pulsars [PDF]

open access: yesAstrophysical Journal, 2018
We present the results of PSRπ, a large astrometric project targeting radio pulsars using the Very Long Baseline Array (VLBA). From our astrometric database of 60 pulsars, we have obtained parallax-based distance measurements for all but 3, with a ...
A. Deller   +10 more
semanticscholar   +1 more source

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