Barry Rice

- doing science on a terrestrial planet -

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Anemic stars

H-R diagram
In making this H-R diagram, emission line stars are plotted separately from absorption line stars. Anemic stars, which are absorption line stars with unexpectedly narrow lines, are farther from the main sequence line than the quiescent stars are. The spectral definitions of quiescent, anemic, and emission have significance in the photometric data as well. Some emission line stars showed infrared excesses and were modelled as systems of stars with disks.

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10 November 2007