Results 11 to 20 of about 153,316 (253)
Measuring the magnetic fields in the chromospheres of low-mass stars [PDF]
Nature CommunicationsMagnetic fields in the upper atmospheres of solar-like stars are believed to provide an enormous amount of energy to power the hot coronae and drive large-scale eruptions that could impact the habitability of planetary systems around these stars. However,
Tianqi Cang +13 more
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Radiative plasma simulations of black hole accretion flow coronae in the hard and soft states [PDF]
Nature CommunicationsStellar-mass black holes in x-ray binary systems are powered by mass transfer from a companion star. The accreted gas forms an accretion disk around the black hole and emits x-ray radiation in two distinct modes: hard and soft state.
Joonas Nättilä
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A Synchronized Spin Model for Black-Hole Accretion Systems [PDF]
EntropyBlack-hole accretion systems exhibit a characteristic coexistence of activities: broad-band X-ray variability, hot coronae, wide-angle winds, and both steady and discrete jets.
Masahiro Morikawa, Akika Nakamichi
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Coronal Loops with Different Metallicities and Generalized RTV Scaling Laws
The Astrophysical Journal, 2023 Stellar metallicity is a critical factor to characterize the stellar coronae because it directly affects the radiative energy loss from the atmosphere.
Haruka Washinoue, Takeru K. Suzuki
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Stellar activity and coronal heating: an overview of recent results. [PDF]
Philos Trans A Math Phys Eng Sci, 2015 Observations of the coronae of the Sun and of solar-like stars provide complementary information to advance our understanding of stellar magnetic activity, and of the processes leading to the heating of their outer atmospheres.
Testa P, Saar SH, Drake JJ.
europepmc +2 more sources
Living with a Red Dwarf: X-Ray, UV, and Ca ii Activity–Age Relationships of M Dwarfs
The Astrophysical Journal, 2023 The vast majority of stars in the nearby stellar neighborhood are M dwarfs. Their low masses and luminosities result in slow rates of nuclear evolution and minimal changes to the stars’ observable properties, even along astronomical timescales.
Scott G. Engle
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On the generalized Schuster density law [PDF]
Serbian Astronomical Journal, 1998 A special case of the generalized Schuster density law for stellar systems with spherical symmetry is discussed; here the exponent in the denominator is equal to i/2 where i is a positive integer. Special attention is paid to the situation 2 ≤ i
Ninković S.
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Aspects of three-dimensional MHD : magnetic reconnection and rotating coronae [PDF]
, 2010 Solutions of the magnetohydrodynamic (MHD) equations are very important for modelling laboratory, space and astrophysical plasmas, for example the solar and stellar coronae, as well as for modelling many of the dynamic processes that occur in these ...
Al-Salti, Nasser S.
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Mass loss from coronae and its effect upon stellar rotation [PDF]
, 1968 Mass loss from coronae and its effect on stellar ...
Kyoji Nariai, Nariai, K.
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Magnetohydrostatic modelling of stellar coronae [PDF]
, 2016 We introduce to the stellar physics community a method of modelling stellar coronae that can be considered to be an extension of the potential field. In this approach, the magnetic field is coupled to the background atmosphere.
Gregory, Scott +8 more
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