Diagnosis of extended atmospheres - Physical and geometrical parameters of the line-formation region

L. S. Cidale, A. E. Ringuelet
1989 Publications of the Astronomical Society of the Pacific  
We present a method that relates parameters of the observed Gaussian absorption profile formed in an extended atmosphere with local parameters such as excitation temperature, atom columns, and distance from the central star to the line-forming region. It also allows us to make a diagnosis of the extended atmosphere through line-intensity variations, profile of the saturated lines, or variations in the extent of the emission wings.
doi:10.1086/132443 fatcat:ztncscdohngnbf32wwshurq2gy