Results 121 to 130 of about 2,433 (297)

A stellar prominence eruption associated with a white-light flare on an M dwarf observed simultaneously by LAMOST and TESS

Astronomy & Astrophysics
Context. 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, Lu Hong-Peng, Zhang Li-Yun, Su Tian-Hao, Shi Yu   +4 more
doaj   +1 more source

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., Drake, Jeremy J., Gudel, Manuel, Audard, Marc   +3 more
openaire   +2 more sources

The Sun as a benchmark of flaring activity in stellar coronae [PDF]

, 2009
The solar corona is a template to study and understand stellar activity. However the solar corona differs from that of active stars: the Sun has lower X-ray luminosity, and on average cooler plasma temperatures.
ARGIROFFI, Costanza, REALE, Fabio, ORLANDO S, PERES, Giovanni   +3 more
core   +1 more source

Formation of Light‐Emitting Defects in Ag‐Based Memristors

Advanced Electronic Materials, EarlyView.
How does a memristor begin to emit light‐before it even conducts? This work reveals that nanoscale silver clusters form, diffuse, and aggregate during activation, driving early photoluminescence ahead of current flow. Linking these precursor dynamics to later electroluminescence, it uncovers the origins of light emission and enables precise control of ...
Diana Singh, Maciej Ćwierzona, Régis Parvaud, Sebastian Maćkowski, Alexandre Bouhelier   +4 more
wiley   +1 more source

The Relationships among Solar Flare Impulsiveness, Energy Release, and Ribbon Development

The Astrophysical Journal
We develop the impulsiveness index, a new classification system for solar flares using the Solar Dynamics Observatory/Extreme Ultraviolet Experiment 304 Å Sun-as-a-star light curves.
Cole A. Tamburri, Maria D. Kazachenko, Adam F. Kowalski   +2 more
doaj   +1 more source

Effect of stellar flares on the upper atmospheres of HD 189733b and HD 209458b [PDF]

, 2017
Stellar flares are a frequent occurrence on young low-mass stars around which many detected exoplanets orbit. Flares are energetic, impulsive events, and their impact on exoplanetary atmospheres needs to be taken into account when interpreting transit ...
Galand, M, Sanz-Forcada, Jorge, Chadney, JM, Unruh, Yvonne, Koskinen, TT, Sanz-Forcada, J, Koskinen, Tommi, Unruh, YC, Chadney, Joshua, Galand, Marina   +9 more
core   +1 more source

Machine Learning Interatomic Potentials for Energy Materials: Architectures, Training Strategies, and Applications

Advanced Energy Materials, EarlyView.
Machine learning interatomic potentials bridge quantum accuracy and computational efficiency for materials discovery. Architectures from Gaussian process regression to equivariant graph neural networks, training strategies including active learning and foundation models, and applications in solid‐state electrolytes, batteries, electrocatalysts ...
In Kee Park, Saeed Pourasad, Jinhong Mun, Arunkumar Chitteth Rajan, Tae Hyeon Park, Anand Rohit, Mohammad Zafari, Tan‐Lien Pham, Eunjae Jung, Bonseung Koo, Miran Ha, Gi Beom Sim, Hyun Gyu Park, Won Woong Choi, Kwanghyeon Jo, Soohaeng Yoo Willow, David ChangMo Yang, Chang Woo Myung, Geunsik Lee, Kwang S. Kim   +19 more
wiley   +1 more source

Systemic Corticosteroids in the Management of Sinonasal Disease: An Evidence‐Based Expert Review

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinosinusitis (CRS) is a prevalent, heterogeneous inflammatory disease associated with significant morbidity. Systemic corticosteroids (SCS) are commonly prescribed for their anti‐inflammatory effects, but cumulative exposure carries risks, including metabolic, cardiovascular, and skeletal complications.
Andrew Thamboo, Deanna Gigliotti, Eugenio De Corso, Stella Lee, Benjamin S. Bleier, Christopher J. Chin, Marie‐Noelle Corriveau, Valerie Hox, Claire Hopkins, Peter H. Hwang, Arif Janjua, Ludger Klimek, Daniel Lee, John Lee, Amber Luong, Geoffrey Mortuaire, Joaquim Mullol, Zara M. Patel, John Scott, Doron Sommer, Leigh Sowerby, Marc Tewfik, Beatrice Voizard, Martin Wagenmannm, Sarah K. Wise, Jonathan Yip, Quirina Thompson, Martin Desrosiers, Yvonne Chan   +28 more
wiley   +1 more source

EFTE-SOAR: Two Giant M Dwarf Flares with Rapid Spectroscopic Follow-up

The Astronomical Journal
We present time-series optical spectroscopy of two stellar flares with complex multi-peaked light curves: a $2.{1}_{-.3}^{+.4}\times 1{0}^{34}$ erg flare from an M8 ultra-cool dwarf, and a $1.{5}_{-.2}^{+.2}\times 1{0}^{35}$ erg superflare from an M4 ...
Hank Corbett, Nathan Galliher, Amy Glazier, Ramses Gonzalez Chavez, Nicholas M. Law, Ward S. Howard, Alan Vasquez Soto, Jeffrey K. Ratzloff, Robert Quimby   +8 more
doaj   +1 more source

Chronic Rhinosinusitis and Nasal Polyps in Eosinophilic Granulomatosis With Polyangiitis: A Scoping Review

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinosinusitis (CRS) is one of the most common manifestations of eosinophilic granulomatosis with polyangiitis (EGPA), often preceding the diagnosis of systemic vasculitis by several years. The sinonasal presentation of EGPA typically resembles CRS with nasal polyps (CRSwNP), making it clinically indistinguishable from those
Alisha Sharma, Alyssa Y. Li, Teruko Kishibe, Dennis Wong, Kevin M. Sanders, Maggie Jiang, Heedo Lee, Christine Song, Kieran Mcintyre, Christian Pagnoux, Yvonne Chan, John M. Lee, Daniel J. Lee   +12 more
wiley   +1 more source