Results 91 to 100 of about 67,610 (340)

Stellar magnetic field manifestations: flares

, 2023
Understanding stellar magnetic fields is crucial to understanding the structure and evolution of stars. Stellar magnetic fields manifest in many different ways, on many different time scales. In this talk discuss one manifestations of magnetic fields on cool stars: stellar flares.
openaire   +1 more source

Validation of the Pediatric Arthritis Ultrasound Scoring System for the Elbow, Wrist, and Finger Joints in Children With Juvenile Idiopathic Arthritis

Arthritis Care &Research, EarlyView.
Objective We aimed to validate the Pediatric Arthritis Ultrasound Scoring System (PAUSS) for upper extremity joints in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA were evaluated for elbow, wrist, or finger arthritis by clinical examination (CE) and musculoskeletal ultrasound (MSUS) with images scored according to the ...
Patricia Vega‐Fernandez, Pinar Ozge Avar‐Aydin, Kelly Rogers, Daniel J. Lovell, Jennifer Huggins, Alexei Grom, Hermine I. Brunner, Grant S. Schulert, Sheila T. Angeles‐Han, Mekibib Altaye, Amy Cassedy, Arthur B. Meyers, Tracy V. Ting   +12 more
wiley   +1 more source

High-Resolution Modeling of Coronae and Winds in Solar-Type Stars with Varying Rotation Rates. I. X-Ray Coronae

The Astrophysical Journal
Stellar coronae are believed to be the main birthplace of various stellar magnetic activities. However, the structures and properties of stellar coronae remain poorly understood. Using the Space Weather Modeling Framework with the Alfvén Wave Solar Model
Yue-Hong Chen, Julián D. Alvarado-Gómez, Xin Cheng, Yu Dai, Tong Shi, Katja Poppenhäger, Chen Xing, Shun Inoue, Jörn Warnecke, Maarit J. Korpi-Lagg, Mingde Ding   +10 more
doaj   +1 more source

Anisotropic Magnetized Asteroseismic Waves

The Astrophysical Journal
We solve for waves in a polytropic, stratified plasma with a spatially varying background magnetic field that points along the horizontal x -direction, and with gravity that is directed along the vertical z -direction.
B. Tripathi, Dhrubaditya Mitra
doaj   +1 more source

The Role of Magnetic Fields in Setting the Star Formation Rate and the Initial Mass Function

Frontiers in Astronomy and Space Sciences, 2019
Star-forming gas clouds are strongly magnetized, and their ionization fractions are high enough to place them close to the regime of ideal magnetohydrodyamics on all but the smallest size scales.
Mark R. Krumholz, Mark R. Krumholz, Christoph Federrath, Christoph Federrath   +3 more
doaj   +1 more source

Analytic and numerical models of the 3D multipolar magnetospheres of pre-main sequence stars

, 2011
Traditionally models of accretion of gas on to T Tauri stars have assumed a dipole stellar magnetosphere, partly for simplicity, but also due to the lack of information about their true magnetic field topologies.
Altschuler, Aly, Argiroffi, Bagnulo, Bessolaz, Collier Cameron, Donati, Donati, Donati, Donati, Donati, Donati, Donati, Donati, Donati, Donati, Dunstone, Flaccomio, Goodson, Goossens, Gregory, Gregory, Gregory, Gregory, Gregory, Gregory, Hartmann, Hussain, Hussain, Jardine, Jardine, Jardine, Johns-Krull, Johns-Krull, Johnstone, Kurosawa, Königl, Küker, Loinard, Long, Long, Long, Marsden, Matt, Miller, Mohanty, Morin, Morin, Morin, Orlando, Petrov, Preston, Riley, Romanova, Romanova, Romanova, Romanova, Ruan, Safier, Schatten, Schulz, Schwarzschild, Shu, Stibbs, Valenti, von Rekowski, Yang, Zanni   +67 more
core   +1 more source

Variable stellar outflows as a probe to magnetic fields and other physical characteristics of hot, massive stars

, 2021
Nicole St‐Louis
openalex   +2 more sources

Artificial Intelligence in Systemic Sclerosis: Clinical applications, challenges, and future directions

Arthritis Care &Research, Accepted Article.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos, José Miguel Sequí‐Sabater, Diego Benavent   +2 more
wiley   +1 more source

Testing the Rossby Paradigm: Weakened Magnetic Braking in Early K-type Stars

The Astrophysical Journal
There is an intricate relationship between the organization of large-scale magnetic fields by a stellar dynamo and the rate of angular momentum loss due to magnetized stellar winds. An essential ingredient for the operation of a large-scale dynamo is the
Travis S. Metcalfe, Pascal Petit, Jennifer L. van Saders, Thomas R. Ayres, Derek Buzasi, Oleg Kochukhov, Keivan G. Stassun, Marc H. Pinsonneault, Ilya V. Ilyin, Klaus G. Strassmeier, Adam J. Finley, Rafael A. García, Daniel Huber, Yuxi (Lucy) Lu, Victor See   +14 more
doaj   +1 more source

Magnetohydrodynamic instabilities in stellar radiative regions

Astronomy & Astrophysics
Context. Space missions such as Kepler have brought new constraints, along with new questions, on stellar evolution. A key issue is the unexpected spin-down of low-mass stellar cores, pointing to an efficient angular momentum transport mechanism in which
Durepaire V., Petitdemange L., Belkacem K., Guseva A., Manchon L., Hollerbach R., Daniel F.   +6 more
doaj   +1 more source