The Thermodynamic State of the Outer Solar Atmosphere. III, IV, and V. Athay, S. ; Matsushima, R. G. ; Athay, R. N. ; Thomas, R. G. ; Menzel, D. H. ; Pecker, J. -C. ; Thomas, R. N. Abstract Publication: The Astrophysical Journal Pub Date: May 1955 DOI: 10.1086/146045 Bibcode: 1955ApJ...121..775A