Results 111 to 120 of about 105,126 (330)

Insights from the Gaussian Process Method for the Fast Radio Burst–associated X-Ray Burst of SGR 1935+2154

open access: yesThe Astrophysical Journal
The Gaussian process method is employed to analyze the light curves of bursts detected by Insight-HXMT, Neutron Star Interior Composition Explorer (NICER), and Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor from SGR 1935+2154 ...
Ruijing Tang   +9 more
doaj   +1 more source

Deep‐UV Light‐Emitting Based on the hBN:S/hBN: Mg Homojunction

open access: yesAdvanced Science, EarlyView.
S‐atoms are selected as donor dopants to achieve the n‐type conductivity of the hBN film. A theoretical model of S‐doping hBN using DFT calculation and experimentally prepared S‐doped hBN multilayers with a recorded doping concentration of 1.21% is established.
Ransheng Chen   +10 more
wiley   +1 more source

Ecotoxicity and Sustainability of Emerging Pb‐Based Photovoltaics

open access: yesSolar RRL, Volume 6, Issue 12, December 2022., 2022
This review provides a unique vision of the ecotoxicity and sustainability of emerging Pb halide perovskite solar cells and Pb chalcogenide quantum dot solar cells. The critical role of Pb, the causes of Pb leakage, the hazardous impact, Pb leakage reduction strategies, and Pb recycling strategies of end‐of‐life solar cells are systematically analyzed.
Xingwen Lu   +6 more
wiley   +1 more source

Detecting Exoplanet Transits with the Next Generation of X-Ray Telescopes

open access: yesThe Astronomical Journal
Detecting exoplanet transits at X-ray wavelengths would provide a window into the effects of high-energy irradiation on the upper atmospheres of planets.
Raven Cilley   +2 more
doaj   +1 more source

Scattering Polarimetry in the Hard X-ray Range

open access: yesInstruments
In one and a half years, the Imaging X-ray Polarimetry Explorer has demonstrated the role and the potentiality of Polarimetry in X-ray Astronomy. The next steps include extension to higher energies.
Enrico Costa
doaj   +1 more source

DAXA: Traversing the X-ray desert by Democratising Archival X-ray Astronomy [PDF]

open access: yesarXiv
We introduce a new, open-source, Python module for the acquisition and processing of archival data from many X-ray telescopes - Democratising Archival X-ray Astronomy (hereafter referred to as DAXA). Our software is built to increase access to, and use of, large archives of X-ray astronomy data; providing a unified, easy-to-use, Python interface to the
arxiv  

Signatures of large-scale structure of Universe in X-rays [PDF]

open access: yesOdessa Astronomy Publications, 2012, Vol. 25, P. 142-144, 2013
A new sample of 4299 galaxies with X-ray emission was obtained in this work by cross-correlating 2XMM catalog of X-ray sources with HyperLeda database of galaxies. We analyzed distributions of optical and X-ray fluxes, redshifts and X-ray luminosities for this sample.
arxiv  

Advanced Solid Lubrication with COK‐47: Mechanistic Insights on the Role of Water and Performance Evaluation

open access: yesAdvanced Science, EarlyView.
This study is the first to report the solid lubrication performance of the newly discovered Ti‐based MOF (COK‐47) powder. COK‐47 exhibits a remarkably lowest and most stable coefficient of friction compared to typical solid lubricants. The lubrication mechanism involves water molecules from the air participating in tribochemical reactions, forming an ...
Hanglin Li   +12 more
wiley   +1 more source

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