263 citations · 2.5k across the 58 of their papers we have counts for
4 papers · 1 filter
Asteroseismology of ZZ Ceti stars with fully evolutionary white dwarf models: I. The impact of the uncertainties from prior evolution on the period spectrum
Francisco C. De Gerónimo, Leandro G. Althaus, Alejandro H. Córsico +2
ZZ Ceti stars are pulsating white dwarfs with a carbon-oxygen core build up during the core helium burning and thermally pulsing Asymptotic Giant Branch phases. Through the interpr…
White Dwarfs in the Metal-Rich Open Cluster NGC 6253
Elizabeth J. Jeffery, Fabiola Campos, Alejandra Romero +1
We have obtained 53 images with the filter and 19 images with the filter, each with 600-second exposures of the super metal rich open cluster NGC 6253 with the Gemini-South…
White Dwarf Mass Distribution
S. O. Kepler, Detlev Koester, Alejandra Daniela Romero +2
We present the mass distribution for all S/N > 15 pure DA white dwarfs detected in the Sloan Digital Sky Survey up to Data Release 12, fitted with Koester models for ML2/alpha=0.8,…
An asteroseismic constraint on the mass of the axion from the period drift of the pulsating DA white dwarf star L19-2
Alejandro H. Córsico, Alejandra D. Romero, Leandro G. Althaus +6
We employ an asteroseismic model of L19-2, a relatively massive ($M_{\star} \sim 0.75 M_{\sun}$) and hot ( K) pulsating DA (H-rich atmosphere) white dwarf…