1.6k citations · 6.6k across the 67 of their papers we have counts for
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astro-ph1997★ 153 cited
Reliable random error estimation in the measurement of line-strength indices
N. Cardiel, J. Gorgas, J. Cenarro +1
We present a new set of accurate formulae for the computation of random errors in the measurement of atomic and molecular indices. The new expressions are in excellent agreement wi…
astro-ph1997★ 53 cited
Line-Strength Indices in Bright Spheroidals: Evidence for a Stellar Population Dichotomy between Spheroidal and Elliptical Galaxies
J. Gorgas, S. Pedraz, R. Guzman +2
We present new measurements of central line-strength indices (namely Mg2, <Fe>, and Hbeta and gradients for a sample of 6 bright spheroidal galaxies (Sph's) in the Virgo cluster. C…