Correlative relationships in an inhomogeneous solar atmosphere

Details Correlative relationships in an inhomogeneous solar atmosphere Correlative relationships in an inhomogeneous solar atmosphere

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...363..289g&link_type=abstract

Astronomy and Astrophysics, v.363, p.289-294 (2000)

Astronomy and Astrophysics

Astrophysics

5

Sun: Granulation, Sun: Photosphere, Hydrodynamics, Line: Formation

Scientific paper

We analyse the correlative relationships between various quantities derived from 2-D inhomogeneous and time-dependent model atmospheres and between selected simulated line parameters to compare them with height-dependent correlations derived from spectral observations. We detect three photospheric regions: thermal convection, overshooting convection and a transition layer. We also show that correlations found for the model data and those computed within simulated spectral observations are a good testing tool for line formation depths. As an example, we examine two criteria, providing heights of line core formation in LTE, and conclude that the approach which defines this quantity as geometrical height at line center optical depth τλ0 = 1 is likely more suitable for diagnostic purposes than the method based on depression contribution function.

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