Author: Gorgas J. Cardiel N. Pedraz S.
Publisher: Springer Publishing Company
ISSN: 0004-640X
Source: Astrophysics and Space Science, Vol.263, Iss.1-4, 1998-01, pp. : 167-170
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Abstract
We present new empirical fitting functions describing the behaviour of the discontinuity at 4000 Å in terms of the stellar atmospheric parameters: effective temperature, metallicity and surface gravity. These calibrations can be easily incorporated into stellar population models, providing, for the first time, accurate predictions of the break amplitud for, relatively old, composite systems.
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