Results 11 to 20 of about 109,416 (289)
Radio-quiet Gamma-ray Pulsars [PDF]
Journal of Astronomy and Space Sciences, 2016 A radio-quiet γ-ray pulsar is a neutron star that has significant γ-ray pulsation but without observed radio emission or only limited emission detected by high sensitivity radio surveys.
Lupin Chun-Che Lin
doaj +1 more source
Classification of unassociated fermi-LAT sources [PDF]
ITM Web of Conferences, 2022 The Large Area Telescope (LAT) on board NASA’s Fermi Gamma-ray Space telescope has detected 5788 sources in the 4FGL catalogue. Among them, 271 have been associated to pulsars, 3436 to blazars, and 1782 remain unassociated sources.
Meng Qiyu
doaj +1 more source
The NANOGrav 11-year Data Set: High-precision Timing of 45 Millisecond Pulsars [PDF]
, 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
Microarcsecond VLBI Pulsar Astrometry with PSRπ II. Parallax Distances for 57 Pulsars [PDF]
Astrophysical 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
Monthly Notices of the Royal Astronomical Society, 2010 We investigate the possibilities that pulsars act as the lens in gravitational microlensing events towards the galactic bulge or a spiral arm. Our estimation is based on expectant survey and observations of FAST (Five hundred meter Aperture Spherical Telescope) and SKA (Square Kilometer Array), and two different models of pulsar distribution are used ...
R. X. Xu, S. Dai, A. Esamdin
openaire +3 more sources
The NANOGrav 12.5 yr Data Set: Observations and Narrowband Timing of 47 Millisecond Pulsars
Astrophysical 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
Timing of young radio pulsars – I. Timing noise, periodic modulation, and proper motion [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The smooth spin-down of young pulsars is perturbed by two non-deterministic phenomenon, glitches, and timing noise. Although the timing noise provides insights into nuclear and plasma physics at extreme densities, it acts as a barrier to high-precision
A. Parthasarathy +12 more
semanticscholar +1 more source
THE NANOGRAV NINE-YEAR DATA SET: MASS AND GEOMETRIC MEASUREMENTS OF BINARY MILLISECOND PULSARS [PDF]
, 2016 We analyze 24 binary radio pulsars in the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) nine-year data set. We make 14 significant measurements of the Shapiro delay, including new detections in four pulsar-binary systems (PSRs ...
E. Fonseca +19 more
semanticscholar +1 more source
Could acceleration of a pulsar affect braking index?
European Physical Journal C: Particles and Fields, 2020 In the coming era of multi-messenger astrophysics, pulsars might be one of the most possible electromagnetic counterparts of the gravitational wave. The braking indices, which are related closely to the electromagnetic radiation of pulsars, are shown to ...
Zhe Chang, Qing-Hua Zhu
doaj +1 more source
The Pulsar Wind Nebula of the Geminga Pulsar [PDF]
The Astrophysical Journal, 2006 Revised version: data analysis described in more detail, Figure 2 replaced; 6 pages, 2 color figures; accepted for publication in ApJ (v.643, 2006 June 1)
George G. Pavlov +2 more
openaire +2 more sources