Results 1 to 10 of about 5,393 (182)

X-ray Pulsar Signal Denoising Based on Variational Mode Decomposition [PDF]

open access: yesEntropy, 2021
Pulsars, especially X-ray pulsars detectable for small-size detectors, are highly accurate natural clocks suggesting potential applications such as interplanetary navigation control.
Qiang Chen, Yong Zhao, Lixia Yan
doaj   +2 more sources

Ultra-high-energy γ-ray emission associated with the tail of a bow-shock pulsar wind nebula [PDF]

open access: yesThe Innovation
In this study, we present a comprehensive analysis of an unidentified point-like ultra-high-energy (UHE) γ-ray source, designated as 1LHAASO J1740+0948u, situated in the vicinity of the middle-aged pulsar PSR J1740+1000.
doaj   +2 more sources

A NuSTAR and Chandra Investigation of the Misaligned Outflow of PSR J1101–6101 and the Lighthouse Pulsar Wind Nebula

open access: yesThe Astrophysical Journal, 2023
PSR J1101–6101 is an energetic young pulsar that powers the remarkable Lighthouse pulsar wind nebula (PWN). The pulsar belongs to the rare type of radio- and gamma-ray-quiet pulsars that are bright in hard X-rays.
Noel Klingler   +4 more
doaj   +1 more source

A Broadband X-Ray Study of the Rabbit Pulsar Wind Nebula Powered by PSR J1418-6058

open access: yesThe Astrophysical Journal, 2023
We report on broadband X-ray properties of the Rabbit pulsar wind nebula (PWN) associated with the pulsar PSR J1418−6058 using archival Chandra and XMM-Newton data, as well as a new NuSTAR observation.
Jaegeun Park   +6 more
doaj   +1 more source

A Pulsar Vector Observation-Based Link Acquisition Method for X-Ray Communications

open access: yesInternational Journal of Aerospace Engineering, 2023
X-ray communication (XCOM) is an emerging laser communication technique for deep space applications. Traditional link acquisition of laser communications depends significantly on Earth support and shows little autonomy.
Shibin Song, Xiao Lu, Haixia Wang
doaj   +1 more source

Revisiting the Chandra Observation on the Region of PSR J1J1809–193: Indication of the Existence of an X-Ray Halo and Implication for the Origin of HESS J1809–193

open access: yesThe Astrophysical Journal, 2023
HESS J1809–193 is an extended TeV γ -ray source and the origin of its γ -ray emission remains ambiguous. The pulsar wind nebula (PWN) of PSR J1J1809–193 lying inside the extended γ -ray emission is a possible candidate.
Chao-Ming Li, Chong Ge, Ruo-Yu Liu
doaj   +1 more source

314 mm2 Hexagonal Double-Sided Spiral Silicon Drift Detector for Soft X-Ray Detection Based on Ultra-Pure High Resistance Silicon

open access: yesFrontiers in Materials, 2021
An X-ray pulsar is a remnant of massive star evolution, collapse, and supernova explosions. It has an extremely stable spin cycle and is known as the most accurate astronomical clock in the natural world.
Manwen Liu   +9 more
doaj   +1 more source

Mission Overview and Initial Observation Results of the X-Ray Pulsar Navigation-I Satellite

open access: yesInternational Journal of Aerospace Engineering, 2017
The newly launched X-ray pulsar navigation-I (XPNAV-1) is an experimental satellite of China that is designed for X-ray pulsar observation. This paper presents the initial observation results and aims to recover the Crab pulsar’s pulse profile to verify ...
Xinyuan Zhang   +4 more
doaj   +1 more source

Novel X-ray Communication Based XNAV Augmentation Method Using X-ray Detectors

open access: yesSensors, 2015
The further development of X-ray pulsar-based NAVigation (XNAV) is hindered by its lack of accuracy, so accuracy improvement has become a critical issue for XNAV.
Shibin Song   +3 more
doaj   +1 more source

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