Results 21 to 30 of about 2,433 (297)
Exoplanets in the Antarctic Sky. III. Stellar Flares Found by AST3-II (CHESPA) within the Southern CVZ of TESS [PDF]
, 2020 International audienceThe CHinense Exoplanet Searching Program from Antarctica is a ground-based wide-field photometric survey using the AST3 and CSTAR telescopes located at Dome A, Antarctica.
Zhang, Hui +43 more
core +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 catalogue of white-light flares observed by Yohkoh [PDF]
, 2003 The aspect camera of the Soft X-ray Telescope (SXT) on Yohkoh provided the first systematic survey of white-light flares from an observatory in space. The observations were made in the Fraunhofer g-band at a pixel size of 2.46 arcsec and a typical sample
H. S. Hudson +7 more
core +1 more source
Observations and modeling of spectral line asymmetries in stellar flares [PDF]
, 2023 Context. Stellar flares are energetic events occurring in stellar atmospheres. They have been observed on various stars using photometric light curves and spectra.
P. Heinzel, P. Kabáth, J. Wollmann
core +1 more source
The Astrophysical Journal Letters, 2023 The optical and near-ultraviolet (NUV) continuum radiation in M-dwarf flares is thought to be the impulsive response of the lower stellar atmosphere to magnetic energy release and electron acceleration at coronal altitudes.
Adam F. Kowalski
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
Solar and Stellar Flares [PDF]
Highlights of Astronomy, 1989 AbstractThis review concentrates on some selected topics concerning the release of magnetic energy and associated phenomena in flares. Emphasis is on microflares, recent studies of different phases of flares, and propagation and trapping of flare accelerated electrons. The ongoing analysis of the observations of the previous solar cycle reaches a state
openaire +2 more sources
Flares: the Solar-Stellar Connection [PDF]
International Astronomical Union Colloquium, 1995 The systematic study of stellar flares in now more than 30 years old. Throughout that time the solar flare paradigm has been used, highly successfully, to understand various aspects of the stellar phenomenon. In this introductory overview I will attempt to justify the use of the solar model in understanding the stellar equivalent. But I will also point
openaire +1 more source
, 2023 Stellar flares are powerful localized eruptions caused by magnetic reconnection events in a star's magnetosphere that can be seen across the entire electromagnetic spectrum. Over short timescales of minutes to a few hours, they emit energies up to 10^38 erg.
Raetz, Stefanie +6 more
openaire +2 more sources
Analysis of Solar-like X-class Flare on Wolf 359 Observed Simultaneously with TESS and XMM-Newton
The Astrophysical Journal, 2023 We present an analysis of a flare on the Wolf 359 star based on simultaneous observations of Transiting Exoplanet Survey Satellite and XMM-Newton. A stellar flare with energy comparable to an X-class solar flare is analyzed on this star for the first ...
M. Pietras +5 more
doaj +1 more source