Results 11 to 20 of about 177,945 (292)
Living Reviews in Solar PhysicsMagnetic storms on stars manifest as remarkable, randomly occurring changes of the luminosity over durations that are tiny in comparison to the normal evolution of stars.
Adam F. Kowalski
exaly +6 more sources
The Kepler Catalog of Stellar Flares [PDF]
The Astrophysical Journal, 2016 A homogeneous search for stellar flares has been performed using every available Kepler light curve. An iterative light curve de-trending approach was used to filter out both astrophysical and systematic variability to detect flares.
Davenport, James R. A.
core +4 more sources
Detecting Stellar Flares in Photometric Data Using Hidden Markov Models [PDF]
The Astrophysical JournalWe present a hidden Markov model (HMM) for discovering stellar flares in light-curve data of stars. HMMs provide a framework to model time series data that are nonstationary; they allow for systems to be in different states at different times and ...
J. Arturo Esquivel +7 more
doaj +2 more sources
Self-organized Criticality in Stellar Flares [PDF]
The Astrophysical Journal, 2021 Abstract Power-law size distributions are the hallmarks of nonlinear energy dissipation processes governed by self-organized criticality (SOC). Here we analyze 75 data sets of stellar flare size distributions, mostly obtained from the Extreme-Ultraviolet Explorer and the Kepler mission.
Markus J. Aschwanden, Manuel Güdel
openaire +3 more sources
Solar–Stellar Connection: X-Ray Flares to Energetic (E > 10 MeV) Particle Events
The Astrophysical Journal, 2023 Energetic particle environments are an important factor for the viability of life on exoplanets surrounding flare stars. In the heliosphere, large gradual solar energetic ( E > 10 MeV) particle (SEP) events are produced by shocks from fast coronal mass ...
S. W. Kahler, A. G. Ling
doaj +1 more source
On the gamma-activity of stellar flares [PDF]
Symposium - International Astronomical Union, 1990 The principal possibility of γ-ray manifestation of stellar flares in the framework of pinch-model is shown. Validity of assumption that, γ-bursts are connected with magnetically active dwarfs (MAD) is discussed.
H. A. Harutyunian, V. S. Hayrapetyan
openaire +1 more source
Interior Heating of Rocky Exoplanets from Stellar Flares with Application to TRAPPIST-1 [PDF]
, 2022 Many stars of different spectral types with planets in the habitable zone are known to emit flares. Until now, studies that address the long-term impact of stellar flares and associated coronal mass ejections (CMEs) assumed that the planet's interior ...
Bower, Daniel J. +4 more
core +2 more sources
The Astrophysical Journal, 2023 Stellar white-light flares are believed to play an essential role in the physical and chemical properties of the atmosphere of the surrounding exoplanets.
Hua-Li Li +16 more
doaj +1 more source
Universe, 2021 Radio emission from stars can be used, for example, to study ionized winds or stellar flares. The radio emission is faint and studies have been limited to few objects.
Bin Yu, Albert Zijlstra, Biwei Jiang
doaj +1 more source
A review of stellar flares and their characteristics [PDF]
Solar Physics, 1989 AbstractWe review the flaring activity of stars across the HR-diagram. Brightenings have been reported along the entire Main Sequence and in many stars off the Main Sequence. Some stars are decidedly young, others are in advanced stages of stellar evolution. Flares are common on stars with outer convection zones and outbursts have been reported also on
openaire +1 more source