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Solar-like Oscillations: An Observational Perspective
Solar-like Oscillations Observational Perspective
2011/9/30
Solar-like oscillations are excited stochastically by convection. They occur in stars with an outer convection zone, which includes the Sun and other stars on the lower main sequence, as well as cool ...
Observational Searches for Chromospheric g-Mode Oscillations from CaII H-Line Observations
Solar chromosphere CaII H-line oscillations chromospheric g-mode
2010/9/17
We have used a high spatial and temporal resolution of long time sequence of spectra in CaII H-line obtained at theVacuum Tower Telescope (VTT) of the Sacramento Peak Observatory on a quiet region at ...
Observational Study of Solar Magnetic Active Phenomena
Sun: activity flares magnetic fields
2010/9/17
The electric current separated into two parts reflected the quantative properties of heterogeneity and chirality of magnetic field, and defined them as the shear and twist components of current. We an...
Radial abundance gradients as observational constraints of galactic evolution：
planetary nebulae galactic evolution
2009/6/25
Radial abundance gradients as observational constraints of galactic evolution：
planetary nebulae and other objects。
The electric current separated into two parts reflected the quantative properties of heterogeneity and chirality of magnetic field, and defined them as the shear and twist components of current. We an...
Observational Evidences for Multi-component Magnetic Field Structure in Solar Flares
Solar flares small-scale magnetic fields multi-component structure
2010/9/15
Two solar flares of 25 July 1981 and 5 November 2004 of importance 2N and M4.1/1B, respectively, were investigated using observational data obtained with the Echelle spectrograph of the Kyiv Universit...