Results 51 to 60 of about 6,211,798 (244)

Probability Distribution Functions of Solar and Stellar Flares

open access: yesPhysics, 2022
The paper studies the soft X-ray data of solar flares and found that the distribution functions of flare fluence are successfully modeled by tapered power law or gamma function distributions whose power exponent is slightly smaller than 2, indicating ...
Takashi Sakurai
doaj   +1 more source

An 85-s X-ray quasi-periodicity after a stellar tidal disruption by a candidate intermediate-mass black hole [PDF]

open access: yesNature Astronomy
It is still in dispute whether intermediate-mass black holes (IMBHs) with a mass of ~103–105 solar masses (M⊙) exist, which are the missing link between stellar-mass black holes (5–50 M⊙) and supermassive black holes (106–1010 M⊙). The bright flares from
Wen-Jie Zhang   +6 more
semanticscholar   +1 more source

Large X-ray Flares on Stars Detected with MAXI/GSC: A Universal Correlation between the Duration of a Flare and its X-ray Luminosity [PDF]

open access: yes, 2016
23 giant flares from 13 active stars (eight RS CVn systems, one Algol system, three dMe stars and one YSO) were detected during the first two years of our all-sky X-ray monitoring with the gas propotional counters (GSC) of the Monitor of All-sky X-ray ...
Y. Tsuboi   +41 more
semanticscholar   +1 more source

Flare X-Ray Observations of AB Doradus: Evidence of Stellar Coronal Opacity

open access: yesThe Astrophysical Journal, 2005
13 pages, 3 figures, to be published in ApJ ...
Matranga, M.   +3 more
openaire   +3 more sources

Extending Service Beyond Active Duty: Generalizability of Rheumatoid Arthritis Research Conducted Among U.S. Veterans

open access: yesArthritis Care &Research, Accepted Article.
Biomedical research involving United States Veterans continues to advance healthcare beyond the Veterans Health Administration. This is particularly true in rheumatoid arthritis (RA), where Veteran‐centric research has uncovered novel insights into pathogenesis, risk factors, and disease manifestations, informing clinical care and research across both ...
Austin M. Wheeler   +20 more
wiley   +1 more source

Optical & X-ray Studies of Ultraluminous X-ray Sources [PDF]

open access: yes, 2009
Ultraluminous X-ray Sources (ULXs) are point like X-ray sources situated external to the nucleus of their host galaxy, with inferred X-ray luminosities in excess of 10^{39} erg s^{−1} .
Gladstone, Jeanette Claire   +1 more
core  

Constraining the Mass Loss and the Kinetic Energy of Stellar Coronal Mass Ejections with Solar Far-ultraviolet Flares

open access: yesThe Astrophysical Journal
Stellar eruptive events, such as flares and coronal mass ejections (CMEs), can affect planetary habitability by disturbing the stability of their atmospheres.
Nuri Park   +2 more
doaj   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Model file for Ishikawa et al. "Automatic Detection of Occulted Hard X-ray Flares Using Deep-Learning Methods" in Sol. Phys. (2021)

open access: yes, 2021
The file named "model_occulted_flare_classifier.h5" is a Keras model file to detect occulated hard X-ray flares by RHESSI spectrogram data described in Ishikawa et al. 2021.
Matsumura, Hideaki   +3 more
core   +1 more source

Helium Ion‐Induced Degradation Mechanisms in Optical Coatings for Space Applications

open access: yesAdvanced Optical Materials, EarlyView.
Although low‐energy helium ions represent a significant source of degradation for optical coatings operating in space environments, their effects remain poorly understood. Systematic irradiation of over 150 metal and dielectric thin‐film samples at 4, 16, and 100 keV investigates the damage mechanisms and their impact on optical performance ...
Alain J. Corso   +5 more
wiley   +1 more source

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