ON THE PROBABLE EXISTENCE OF AN ABRUPT MAGNETIZATION IN THE UPPER CHROMOSPHERE OF THE QUIET SUN [PDF]
The Astrophysical Journal, 2010 12 pages, 3 figures, accepted for publication in The Astrophysical Journal Letters (2010)
Jiří Štěpán, J. Trujillo Bueno
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Chromospheres, Coronae, and Mass Loss in Stars Hotter than the Sun [PDF]
Highlights of Astronomy, 1980 AbstractReviews of the mass-loss characteristics of OB stars have been published recently, and the present review therefore emphasizes the A and F stars and very recent results on O and B stars. For the F stars, chromospheric indicators are present in the form of emission lines, seen in visible and ultraviolet wavelengths.
Theodore P. Snow
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Dynamic models of the sun from the convection zone to the chromosphere [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractThe chromosphere in internetwork regions of the quiet Sun was regarded as a static and homogeneous layer for a long time. Thanks to advances in observations and numerical modelling, the wave nature of these atmospheric regions received increasing attention during the last decade.
Sven Wedemeyer-Böhm
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One-dimensional, geometrically stratified semi-empirical models of the quiet-Sun photosphere and lower chromosphere [PDF]
One-dimensional, semi-empirical models of the solar atmosphere are widely employed in numerous contexts within solar physics, ranging from the determination of element abundances and atomic parameters to studies of the solar irradiance and from Stokes ...
J. M. Borrero +4 more
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Spectropolarimetric investigations of the magnetization of the quiet Sun chromosphere [PDF]
, 2010 To appear in Proceedings 25th NSO Workshop on Chromospheric Structure and Dynamics; editors A. Tritschler, K. Reardon, H. Uitenbroek, Mem. Soc.
J. Trujillo Bueno
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What is heating the quiet-Sun chromosphere? [PDF]
, 2006 10 pages, 3 figures, to appear in the proceedings of the Coimbra Solar Physics Meeting on The Physics of Chromospheric Plasmas, 2006, eds. P. Heinzel, I. Dorotovic, and R.
Wedemeyer-Böhm, S. +3 more
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Collisional dissipation of Alfvén waves in a partially ionised solar chromosphere [PDF]
Astronomy and Astrophysics, 2005 Certain regions of the solar atmosphere are at sufficiently low temperatures to be only partially ionised. The lower chromosphere contains neutral atoms, the existence of which greatly increases the efficiency of the damping of waves due to collisional ...
J. E. Leake +5 more
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Viewing the Chromosphere of the Sun in the Near Infrared Spectrum
, 2019 The outermost layer of the sun, the chromosphere, cannot normally be seen due to the overwhelming brightness of the photosphere, the layer beneath it. However, in certain wavelengths of light, the chromosphere outshines the photosphere, meaning it can be
Joseph Kelly
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Does the Sun Have a Full-Time Chromosphere? [PDF]
The Astrophysical Journal, 1999 The successful modeling of the dynamics of H2v bright points in the nonmagnetic chromosphere by Carlsson & Stein gave as a by-product a part-time chromosphere lacking the persistent outward temperature increase of time-average empirical models, which is needed to explain observations of UV emission lines and continua.
W. Kalkofen +2 more
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Chromospheric Heating due to Cancellation of Quiet Sun Internetwork Fields [PDF]
The Astrophysical Journal, 2018 The heating of the solar chromosphere remains one of the most important questions in solar physics. Our current understanding is that small-scale internetwork (IN) magnetic fields play an important role as a heating agent.
De Pontieu, Bart Walter +22 more
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