Results 191 to 200 of about 3,957 (226)
Some of the next articles are maybe not open access.
Solar Physics, 1979
In this paper the dependance of the rotation rate of chromospheric features on their is discussed. The angular velocity of short lived emission features at chromospheric level has been determined by analyzing daily filtergrams in the Ca 11K3 line, obtained at the Anacapri Observatory, in the period 8 May-14August 1972.
Antonucci E. +4 more
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In this paper the dependance of the rotation rate of chromospheric features on their is discussed. The angular velocity of short lived emission features at chromospheric level has been determined by analyzing daily filtergrams in the Ca 11K3 line, obtained at the Anacapri Observatory, in the period 8 May-14August 1972.
Antonucci E. +4 more
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Chromospheric flares or chromospheric aurorae?
Space Science Reviews, 1975This paper discusses some of the well-documented flare phenomena and possible analogies with magnetospheric substorm phenomena. Such analogies do exist, but also important differences. The combination of forces from magnetospheric and solar physicists will bring us closer to the understanding of these nearby examples of unstable cosmic plasmas.
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Diffusive fractionation in the chromosphere
Space Science Reviews, 1994A new mechanism for the FIP fractionation in the solar wind in the form of a stationary diffusion model is proposed. It is based on a weakly stratified chromospheric layer of constant density and temperature, permeated everywhere by ionizing photons and a homogeneous magnetic field. Our model does not invoke any particular geometry or special set up of
von Steiger, R., Marsch, E.
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The Dynamics of Chromospheric Spicules
Space Science Reviews, 1994We present the observational results on chromospheric spicules obtained at the Sayan observatory 50 cm coronograph. To investigate the evolution of chromospheric spicules, we analysed spicule spectra of strong chromospheric lines measured simultaneously at three altitudes above the solar limb during 5–60 min with a time resolution of 10 to 20 s.
P. G. Papushev, R. T. Salakhutdinov
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Sequential chromospheric brightenings: The case for chromospheric evaporation
Advances in Space Research, 2007Abstract Sequential chromospheric brightenings (SCBs [Balasubramaniam, K.S., Pevtsov, A.A., Neidig, D.F., Cliver, E.W., Thompson, B.J., Young, C.A., Martin, S.F., & Kiplinger, A., 630, 1160, 2005.]) are observed in conjunction with some strong solar flares, prominence eruptions, and coronal mass ejections (CMEs).
Alexei A. Pevtsov +2 more
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2019
Modeling of the solar chromosphere is challenging and the spectral diagnostic features formed in the chromosphere are few and difficult to interpret, and typically they are neither formed in the optically thin regime (unlike the corona), nor are they in the local thermodynamic equilibrium (LTE) (e.g., see reviews by Carlsson 2007, 2008).
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Modeling of the solar chromosphere is challenging and the spectral diagnostic features formed in the chromosphere are few and difficult to interpret, and typically they are neither formed in the optically thin regime (unlike the corona), nor are they in the local thermodynamic equilibrium (LTE) (e.g., see reviews by Carlsson 2007, 2008).
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The quiet chromosphere: Phase relation with the solar cycle
Advances in Space Research, 2022K J Li
exaly
Spicules and downflows in the solar chromosphere
Astronomy and Astrophysics, 2021Souvik Bose +2 more
exaly