We critically discuss the uncertainties related to fitting theoretical main sequence isochrones to open cluster stars suggesting some "plausible" fits for the Hyades cluster. We also show that, unlike for the case of stars with degenerate progenitors, there is no clear evidence of a discrepancy between observation and theoretical predictions for the luminosity of He burning stars.
The Hyades in the Light of Hipparcos
PRADA MORONI, PIER GIORGIO;DEGL'INNOCENTI, SCILLA;
2000-01-01
Abstract
We critically discuss the uncertainties related to fitting theoretical main sequence isochrones to open cluster stars suggesting some "plausible" fits for the Hyades cluster. We also show that, unlike for the case of stars with degenerate progenitors, there is no clear evidence of a discrepancy between observation and theoretical predictions for the luminosity of He burning stars.File in questo prodotto:
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