Abstract
view Abstract Citations (103) References (32) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Detection of mass loss in stellar chromospheres. Stencel, R. E. ; Mullan, D. J. Abstract IUE observations of 47 cool giants have been made in a search for the onset of expansion in the Mg II h and k emission cores. It is found that, in a statistical sense, the longward emission peak becomes dominant above a velocity dividing line in the H-R diagram, which lies close to a temperature dividing line reported by Linsky and Haisch (1979). Also discussed are asymmetries in emission cores, collected asymmetry data including the evaluation of absolute visual magnitude by MK classification, Ca K emission width, and Mg k emission width, and evolutionary implications for the hypothesized supersonic transition locus (Mullan, 1978). Publication: The Astrophysical Journal Pub Date: May 1980 DOI: 10.1086/157978 Bibcode: 1980ApJ...238..221S Keywords: Chromosphere; Emission Spectra; Giant Stars; Late Stars; Stellar Mass Ejection; Ultraviolet Spectra; Asymmetry; High Resolution; Iue; Line Spectra; Stellar Evolution; Stellar Magnitude; Astrophysics full text sources ADS | data products SIMBAD (49) MAST (1) INES (1) Related Materials (1) Addendum: 1980ApJ...240..718S
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