Results 31 to 40 of about 1,603 (188)

Pulsars

open access: yesLe Journal de Physique Colloques, 1973
Pas de Résumé ...
openaire   +2 more sources

Born to be recycled: A comprehensive population synthesis of the Galactic millisecond pulsars

open access: yesAstronomy & Astrophysics
Context. Millisecond pulsars (MSPs) are the oldest and fastest pulsars known to date. The first MSP to be discovered was PSR B1937+21 in 1982. To explain how these pulsars could be formed, a new hypothesis was formulated: the recycling of pulsars, i.e ...
Sautron Mattéo   +4 more
doaj   +1 more source

Relativistic Effects of Rotation in γ-ray Pulsars—Invited Review

open access: yesGalaxies, 2021
In this paper, we consider the relativistic effects of rotation in the magnetospheres of γ-ray pulsars. The paper reviews the progress achieved in this field during the last three decades.
Zaza Osmanov
doaj   +1 more source

The search for statistical anisotropy in the gravitational-wave background with pulsar timing arrays

open access: yesThe Open Journal of Astrophysics, 2019
Pulsar-timing arrays (PTAs) are seeking gravitational waves from supermassive-black-hole binaries, and there are prospects to complement these searches with stellar-astrometry measurements.
Selim Can Hotinli   +2 more
doaj   +1 more source

Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2013
We report the detection of a quasi-sinusoidally modulated optical flux with a period of 4.6343 hour in the optical and infrared band of the Fermi source 2FGL J2339.7-0531.
Tzu-Ching Yen   +5 more
doaj   +1 more source

A Preliminary Study of Large Scale Pulsar Candidate Sifting Based on Parallel Hybrid Clustering

open access: yesUniverse, 2022
Pulsar candidate sifting is an essential part of pulsar analysis pipelines for discovering new pulsars. To solve the problem of data mining of a large number of pulsar data using a Five-hundred-meter Aperture Spherical radio Telescope (FAST), a parallel ...
Zhi Ma   +8 more
doaj   +1 more source

Particle acceleration in Pulsars and Pulsar Wind Nebulae

open access: yesFoundations of Cosmic Ray Astrophysics, 2022
These notes summarise the contents of the lectures I delivered at the International School of Physics "Enrico Fermi" on "Foundations of Cosmic Ray Astrophysics". The lectures were dealing with the physics of Pulsars and Pulsar Wind Nebulae (PWNe) in the Cosmic Ray (CR) perspective.
openaire   +4 more sources

Pulsed γ-ray emission from magnetar 1E 2259+586 [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2013
Anomalous X-ray pulsars (AXPs) are thought to be magnetars which are young isolated neutron stars with extremely strong magnetic fields of >1014 Gauss.
Jason Hung Kit Wu   +8 more
doaj   +1 more source

Grafting Nanolayers of Ni and Co Catalysts Around the Edges of Hierarchical Zeolite 13X by Leveraging the Crystal's Defects for CO2 Methanation

open access: yesCarbon Energy, EarlyView.
The deactivation of nickel‐based catalysts at high temperatures poses a significant challenge in CO2 methanation processes. To address this, a strong metal–support interaction between nickel and the support was engineered by exploiting the crystal defects present in hierarchical porous zeolite 13X.
Nasir Shezad   +7 more
wiley   +1 more source

The Emission Geometry of Pulsars with Interpulses

open access: yesThe Astrophysical Journal
We present polarization profiles of 23 pulsars exhibiting interpulse (IP) emissions using the Five-hundred-meter Aperture Spherical Radio Telescope. By applying the rotating vector model (RVM), we measured the inclination and impact angles for 16 pulsars,
S. N. Sun   +3 more
doaj   +1 more source

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