Results 1 to 10 of about 679,336 (143)

HISTORY OF LOW-FREQUENCY RESEARCH OF PULSARS [PDF]

open access: yesRadio Physics and Radio Astronomy, 2021
Purpose: The main most pronounced events, which occurred in the initial period of the pulsars’ study at the decameter wavelength range, are presented.
O. M. Ulyanov
doaj   +1 more source

The Coaxial L-P Cryogenic Receiver of the Sardinia Radio Telescope

open access: yesIEEE Access, 2022
The design and characterization of the coaxial dual-band L-P radio astronomical receiver for the prime focus of the Sardinia radio telescope are presented.
Giuseppe Valente   +10 more
doaj   +1 more source

Probing the Solar Interior with Lensed Gravitational Waves from Known Pulsars

open access: yesThe Astrophysical Journal, 2023
When gravitational waves (GWs) from a spinning neutron star arrive from behind the Sun, they are subjected to gravitational lensing that imprints a frequency-dependent modulation on the waveform.
Ryuichi Takahashi   +2 more
doaj   +1 more source

Understanding the Neutron Star Population with the SKAO telescopes

open access: yesThe Open Journal of Astrophysics
The known population of non-accreting neutron stars is ever growing and currently consists of more than 3500 sources. Pulsar surveys with the SKAO telescopes will greatly increase the known population, adding radio pulsars to every subgroup in the radio ...
Lina Levin   +15 more
doaj   +4 more sources

Distributed Computing Infrastructure for HERD experiment [PDF]

open access: yesEPJ Web of Conferences
The High Energy cosmic-Radiation Detection (HERD) facility is an under construction space astronomy and particle astrophysics experiment in collaboration between China and Europe, and will run on the China Space Station for more than 10 years since 2027.
Zhang Xuantong   +3 more
doaj   +1 more source

Identifying Companions in Pulsar Binary Systems via Gaia Data

open access: yesUniverse
In the optical band, very few pulsars can be directly detected, but some of the pulsar binary companions can be observed. This study leverages high-precision astrometric data from Gaia Data Release 3 (DR3) to identify pulsar companions in binary systems.
Yueqi Song   +5 more
doaj   +1 more source

A Study on the Evolution of Emission Altitude with Frequency Among 104 Normal Pulsars

open access: yesUniverse
Utilizing the databases from the European Pulsar Network (EPN), the Australia Telescope National Facility (ATNF), and published literature data, a geometric method was used to investigate the multifrequency emission altitude of 104 pulsars. We found that
Chaoxin Luo   +3 more
doaj   +1 more source

Prediction of Astrometric and Timing Microlensing Events with Pulsars by ATNF Catalog and Gaia DR3

open access: yesThe Astrophysical Journal
Determining the mass of neutron stars is crucial for understanding their formation, evolution, and interior structure. Currently, only a few dozen neutron stars have had their masses measured, and most of them belong to binary systems. However, there are
Xu Lu, Yi Xie
doaj   +1 more source

A Systematic Search for Redback and Black Widow Candidates Based on the 4FGL-DR3 Unassociated Sources and the Zwicky Transient Facility Data

open access: yesThe Astrophysical Journal
Spider pulsars represent a unique subclass of radio millisecond pulsars in binaries, and are further categorized into black widows and redbacks according to the mass of the low-mass companion.
Chunyan Lu   +5 more
doaj   +1 more source

On the Contribution of Unresolved Pulsars to the Ultra-high-energy Galactic Diffuse Gamma-Ray Emission

open access: yesThe Astrophysical Journal Letters
The ultra-high-energy (UHE) Galactic diffuse gamma-ray emission holds important information on the propagation of cosmic rays in the Galaxy. However, its measurements suffer from a contamination from unresolved sources whose contribution remains unclear.
Samy Kaci   +2 more
doaj   +1 more source

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