Results 111 to 120 of about 121,901 (271)

Pulsar Spin-Velocity Alignment: Kinematic Ages, Birth Periods and Braking Indices [PDF]

open access: yes, 2013
This paper presents a detailed investigation of the dependence of pulsar spin-velocity alignment, which has been observed for a sample of 58 pulsars, on pulsar age. At first, our study considers only pulsar characteristic ages, resulting in no change in the degree of correlation as a function of age, up to at least 100 Myr.
arxiv   +1 more source

Re-visiting gravitational wave events via pulsars [PDF]

open access: yesPhysical Letters B 811, (2020) 135887, 2019
By now many gravitational wave (GW) signals have been detected by LIGO and Virgo, with the waves reaching earth directly from their respective sources. These waves will also travel to different pulsars and will cause (tiny) transient deformations in the pulsar shape.
arxiv   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

open access: yesWildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling   +9 more
wiley   +1 more source

Limitations in timing precision due to single-pulse shape variability in millisecond pulsars [PDF]

open access: yes, 2014
High-sensitivity radio-frequency observations of millisecond pulsars usually show stochastic, broad-band, pulse-shape variations intrinsic to the pulsar emission process.
R. Shannon   +22 more
semanticscholar   +1 more source

Catalog of the Galactic Population of X-Ray Pulsars in High-mass X-Ray Binary Systems

open access: yesThe Astrophysical Journal Supplement Series, 2023
A catalog of the Galactic population of X-ray pulsars in high-mass X-ray binary (HMXB) systems is presented. It contains information about 82 confirmed sources: 18 persistent and 64 transient pulsars.
Vitaliy Kim   +2 more
doaj   +1 more source

Evolution of non-spherical pulsars with plasma-filled magnetospheres [PDF]

open access: yes, 2015
Pulsars are famous for their rotational stability. Most of them steadily spin down and display a highly repetitive pulse shape. But some pulsars experience timing irregularities such as nulling, intermittency, mode changing and timing noise. As changes in the pulse shape are often correlated with timing irregularities, precession is a possible cause of
arxiv   +1 more source

A New X-Ray Census of Rotation Powered Pulsars

open access: yesThe Astrophysical Journal
To date, over 4000 pulsars have been detected. In this study, we identify 231 X-ray counterparts of Australia Telescope National Facility (ATNF) pulsars by performing a spatial cross match across the Chandra, XMM-Newton observational catalogs.
Yu-Jing Xu   +4 more
doaj   +1 more source

Comparative efficacy of intravitreal anti‐VEGF therapy for neovascular age‐related macular degeneration: A systematic review with network meta‐analysis

open access: yesActa Ophthalmologica, EarlyView.
Abstract The aim of this review was to evaluate the comparative efficacy of intravitreal anti‐vascular endothelial growth factor (anti‐VEGF) therapy for neovascular AMD. We searched 12 literature databases for randomised clinical trials (RCT) on anti‐VEGF therapy for neovascular AMD and extracted data on: change from baseline to 12 months in best ...
Emilie T. S. Butler   +17 more
wiley   +1 more source

A Cosmic Census of Radio Pulsars with the SKA [PDF]

open access: yes, 2014
The Square Kilometre Array (SKA) will make ground breaking discoveries in pulsar science. In this chapter we outline the SKA surveys for new pulsars, as well as how we will perform the necessary follow-up timing observations. The SKA's wide field-of-view,
E. Keane   +19 more
semanticscholar   +1 more source

Prospects for observations of pulsars and pulsar wind nebulae with CTA [PDF]

open access: yesAstroparticle Physics, 2013
accepted for publication in Astroparticle ...
E. d. Ona Wilhelmi   +18 more
openaire   +4 more sources

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