Results 11 to 20 of about 17,719 (230)
The Astrophysical Journal, 2023 DQ Tau is a unique young high-eccentricity binary system that exhibits regular magnetic reconnection flares and pulsed accretion near periastron. We conducted NuSTAR, Swift, and Chandra observations during the 2022 July 30 periastron to characterize X ...
Konstantin V. Getman +5 more
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Stable Coronal X-Ray Emission over 20 yr of XZ Tau
The Astronomical Journal, 2023 XZ Tau AB is a frequently observed binary young stellar object in the Taurus Molecular Cloud; XZ Tau B has been classified as an EXOr object. We present new Chandra/HETG-ACIS-S observations of XZ Tau AB, complemented with variability monitoring of the ...
Steven M. Silverberg +5 more
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The Astrophysical Journal, 2023 We investigate gamma-ray emission in the impulsive phase of solar flares and the detectability of nonthermal signatures from protostellar flares. Energetic solar flares emit high-energy gamma rays of GeV energies, but their production mechanism and ...
Shigeo S. Kimura +2 more
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X-Ray Emission from Stellar Flares: Exosat Results [PDF]
International Astronomical Union Colloquium, 1989 AbstractWe present an overview of recent observations of stellar X-ray flares obtained with the EXOSAT Observatory. We discuss a few examples of flares from M dwarf flare stars, from RS CVn and Algol-type binaries, from single late-type stars (including a G0 dwarf and an A-type visual binary), and from pre-main-sequence objects.
R. Pallavicini, G. Tagliaferri
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X-Ray Observations of Stellar Flares [PDF]
International Astronomical Union Colloquium, 1983 ABSTRACTThe history of stellar X-ray flare observations prior to EINSTEIN is reviewed. X-ray light curves as measured by the IPC are then presented for all time resolved flare events discovered as of July 1982 in the EINSTEIN data set. These light curves are analyzed in terms of solar-like loop models to derive densities, temperatures, loop lengths ...
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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
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On the expected $\gamma$-ray emission from nearby flaring stars [PDF]
, 2017 Stellar flares have been extensively studied in soft X-rays (SXR) by basically every X-ray mission. Hard X-ray (HXR) emission from stellar superflares, however, have only been detected from a handful of objects over the past years. One very extreme event
Hoischen, Clemens, Ohm, Stefan
core +1 more source
AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury
, 2022 Hepatology, EarlyView.
Robert J. Fontana +6 more
wiley +1 more source
A stellar flare−coronal mass ejection event revealed by X-ray plasma motions [PDF]
Nature Astronomy, 2019 Letter published on Nature Astronomy, see https://rdcu.be ...
C. Argiroffi +8 more
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Delayed Development of Cool Plasmas in X-Ray Flares from the Young Sun-like Star κ 1 Ceti
The Astrophysical Journal, 2023 The Neutron star Interior Composition Explorer (NICER) X-ray observatory observed two powerful X-ray flares equivalent to superflares from the nearby young solar-like star κ ^1 Ceti in 2019. NICER follows each flare from the onset through the early decay,
Kenji Hamaguchi +5 more
doaj +1 more source