Results 71 to 80 of about 744 (246)
Stellar flares are far-ultraviolet luminous
Monthly Notices of the Royal Astronomical SocietyABSTRACT We identify 182 flares on 158 stars within 100 pc of the Sun in both the near-ultraviolet (NUV; $1750\!-\!2750$ Å) and far-ultraviolet (FUV; $1350\!-\!1750$ Å) using high-cadence light curves from the Galaxy Evolution Explorer. Ultraviolet (UV) emission from stellar flares plays a crucial role in determining the habitability of ...
Vera L Berger +8 more
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Flare Stars in Stellar Aggregates [PDF]
International Astronomical Union Colloquium, 1977 After the report on flare stars presented by Ambartsumian and the author (1971) at the last Bamberg Colloquium, some success has been achieved in the study of these interesting objects.Optical observations of stellar flares with high time-resolution undoubtedly proved the explosive character of this phenomenon and the non-thermal nature of the ...
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Advanced Science, EarlyView.Polydopamine‐encapsulated probiotics restore gut homeostasis and reinstate macrophage efferocytosis, thereby reestablishing immune tolerance and mitigating systemic autoimmunity, highlighting a bioengineered microbiota‐based therapeutic strategy for SLE.
Ruimiao Wu +10 more
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A Statistical Study of Soft X-Ray Flares on Solar-type Stars
The Astrophysical JournalThe statistical characteristics of stellar flares at optical bands have received extensive study, but they remain to be studied at soft X-ray bands, in particular for solar-type stars.
Z. H. Zhao +4 more
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Advanced Science, EarlyView.We developed a senolytic approach using procyanidin C1 (PCC1)‐loaded platform, a clinically established and safe hyaluronic acid‐based scaffold, to selectively eliminate senescent endothelial and microglial cells. This dual‐targeting strategy significantly suppresses pathological neovascularization and promotes vascular repair, presenting a safe and ...
Yali Zhou +10 more
wiley +1 more source
Analyzing the Morphology of Late-phase Stellar Flares from G-, K-, and M-type Stars
The Astrophysical JournalStellar flares occasionally present a peak-bump light-curve morphology, consisting of an initial impulsive phase followed by a gradual late phase.
Denise G. Yudovich +2 more
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Flare Heating in Stellar Coronae
The Astrophysical Journal, 2002 We investigate the contribution of very weak flares to the coronal luminosity of low-mass active stars. We analyze EUVE/DS events data from FK Aqr, V1054 Oph, and AD Leo and conclude that in all these cases the coronal emission is dominated by flares to such an extent that in some cases the entire emission may be ascribed to flare heating.
Kashyap, Vinay L. +3 more
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Worm‐Inspired Soft Robots With Modular Outfit‐Changing for Intelligent Multienvironment Adaptation
Advanced Intelligent Systems, EarlyView.This study proposes a worm‐inspired soft robot capable of locomotion across multiple environments through a modular “outfit‐changing” strategy. The robot integrates pneumatically actuated peristaltic segments with interchangeable external modules, enabling efficient motion on ground surfaces, within pipelines, through granular media, and underwater ...
Xiaomin Liu +6 more
wiley +1 more source
The Astronomical JournalWe examine 4 yr of Kepler 30 minutes data, and five sectors of Transiting Exoplanet Survey Satellite 2 minutes data for the dM3 star KIC-8507979/TIC-272272592. This rapidly rotating ( P = 1.2 day) star has previously been identified as flare active, with
Tobin M. Wainer +4 more
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Astronomy & AstrophysicsContext. Stellar coronal mass ejections (CMEs) are regarded as major drivers of space weather in exoplanetary systems. Their large-scale expulsions of magnetised plasma may erode planetary atmospheres and influence the long-term evolution of close-in ...
Cai Chang +4 more
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