Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-12-15
Mon.Not.Roy.Astron.Soc.373:1523-1530,2006
Astronomy and Astrophysics
Astrophysics
8 pages, 7 figures
Scientific paper
10.1111/j.1365-2966.2006.11105.x
In this paper, the physical conditions within the inhomogeneous solar atmosphere have been reconstructed by means of solving the inverse problem of Non Local Thermodynamic Equilibrium (NLTE) radiative transfer. The profiles of $\lambda=523.42$ nm FeI spectral line of high spatial and time resolution were used as observational data. The velocity field has been studied for the real solar granulation in superadiabatic layer and overshooting convection region. Also, we investigate the vertical structure of inhomogeneous solar photosphere and consider penetration of granules from convective region into upper layers of stable atmosphere. The microturbulent velocity appears to be minimal at the bottom of overshooting convection region and increases sharply through superadiabatic layer and upper photosphere. High-turbulent layers emerge either in the central part of a flow or at the boundary of an incipient flow with following drift toward the centre of the flow. Wide descending flows tend to disintegrate into structures having turbulence augmented, these structures correspond to the flows of matter. High microturbulence of the intensive flows provokes steep temperature depression in upper photosphere leading to the second inversion of temperature for the intergranules. The inversion of vertical velocities is observed to be frequent in the solar granulation. Some of the convective flows reach the minimum temperature region. Vertical convective velocities of the matter flows were found to be smaller in the middle and upper photosphere. Also, the effect of finite resolution on the spacial variations of the velocities in solar photosphere has been estimated.
Malynych S. Z.
Stodilka M. I.
No associations
LandOfFree
Spatial variations in the field of velocities and real solar granulation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spatial variations in the field of velocities and real solar granulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatial variations in the field of velocities and real solar granulation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-132242