The Discovery of the Chemical Composition - Kinematics Connection in the 1950's |
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Authors: | Nancy Grace Roman |
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Institution: | (1) Hughes STX (NASA Astronomical Data Center), Greenbelt, Maryland, U.S.A. |
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Abstract: | This paper reviews the recognition that kinematic characteristics of stars are related to their spectroscopic appearance on
low and intermediate dispersion spectra. These differences result from the differences in the abundances of metals as determined
from high dispersion spectra. Presumably, these abundance differences reflect differences in age. The high-velocity carbon
stars share the molecular peculiarities of the high-velocity oxygen giants but, because of the greater strength of the bands
of carbon-containing molecules, exhibit them to a greater degree.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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