Results 21 to 30 of about 1,654 (188)

Pulsars

Le Journal de Physique Colloques, 1973
Pas de Résumé ...
openaire   +2 more sources

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

Galaxies, 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

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

Astronomy & 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, Pétri Jérôme, Mitra Dipanjan, Dupuy-Junet Adélie, Pietrin Marie-Eloïse   +4 more
doaj   +1 more source

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

The 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, Marc Kamionkowski, Andrew H. Jaffe   +2 more
doaj   +1 more source

The Discovery of Nulling and Mode-switching Pulsars with CHIME/Pulsar [PDF]

The Astrophysical Journal, 2020
Abstract The Pulsar backend of the Canadian Hydrogen Intensity Mapping Experiment has monitored hundreds of known pulsars in the northern sky since fall 2018, providing a rich data set for the study of temporal variations in pulsar emission.
Ng, C., Wu, B., Ma, M., Ransom, S. M., Naidu, A., Fonseca, E., Boyle, P. J., Brar, C., Cubranic, D., Demorest, P. B., Good, D. C., Kaspi, V. M., Masui, K. W., Michilli, D., Patel, C., Renard, A., Scholz, P., Stairs, I. H., Tendulkar, S. P., Tretyakov, I., Vanderlinde, K.   +20 more
openaire   +2 more sources

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

Journal 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, Albert Kwok-Hing Kong, Yoichi Yatsu, Hidekazu Hanayama, Takahiro Nagayama, on behalf of OISTER   +5 more
doaj   +1 more source

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

Universe, 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, Zi-Yi You, Ying Liu, Shi-Jun Dang, Dan-Dan Zhang, Ru-Shuang Zhao, Pei Wang, Si-Yao Li, Ai-Jun Dong   +8 more
doaj   +1 more source

Particle acceleration in Pulsars and Pulsar Wind Nebulae

Foundations 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]

Journal 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, Chung Yue Hui, Regina Hsiu Hui Huang, Albert Kwok Hing Kong, Kwong Sang Cheng, Jumpei Takata, Pak Hin Thomas Tam, Eric Man Ho Wu, Joe Liu   +8 more
doaj   +1 more source

Machine Learning‐Assisted Design and Performance Prediction of a Compact Dual‐Band Polarization‐Insensitive THz Metamaterial Absorber for Skin‐Cancer‐Related Refractive‐Index Sensing

Advanced Electronic Materials, EarlyView.
A compact QASRR‐based THz metamaterial absorber enables polarization‐insensitive dual‐band absorption and skin‐cancer‐related refractive‐index sensing through measurable resonance shifts. Field, surface‐current, and circuit analyses clarify the dual‐resonance mechanism, while StackNet‐assisted prediction accurately estimates the simulated absorption ...
Md. Murad Kabir Nipun, S. M. Rifatur Rana, Md. Golam Morshed, Imrose Jahan, F. A. Sabbir Ahamed, Md. Jahedul Islam   +5 more
wiley   +1 more source