Abstract
view Abstract Citations (61) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The boundary line in the H-R diagram for stellar chromospheres and the theory of convection. Boehm-Vitense, E. ; Dettmann, T. Abstract Ultraviolet emission-line spectra of A, F, and early G stars have been observed with the International Ultraviolet Explorer. For supergiants, classical chromospheric and transition-layer emission is seen only on the red side of the Cepheid instability strip. For luminosity classes III-V, chromospheric emission can be detected for spectral types F2 and later. For none of the A stars was normal chromospheric emission detected, regardless of their rotational velocities or peculiarities (i.e., Am or Ap). Publication: The Astrophysical Journal Pub Date: March 1980 DOI: 10.1086/157774 Bibcode: 1980ApJ...236..560B Keywords: Chromosphere; Convection; Emission Spectra; Hertzsprung-Russell Diagram; Stellar Magnitude; Stellar Spectra; Ultraviolet Spectra; A Stars; G Stars; Iue; Line Spectra; Stellar Luminosity; Stellar Rotation; Supergiant Stars; Astrophysics full text sources ADS | data products SIMBAD (41) MAST (1)
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