69 citations · 139 across the 5 of their papers we have counts for
5 papers
Asteroseismology of PG 1541651 and BPM 31594 with TESS
Alejandra D. Romero, Gabriela Oliveira da Rosa, S. O. Kepler +5
We present the photometric data from TESS for two known ZZ Ceti stars, PG 1541+651 and BPM 31594. Before TESS, both objects only had observations from short runs from ground-based…
Uncovering the chemical structure of the pulsating low-mass white dwarf SDSS J115219.99+024814.4
A. D. Romero, G. R. Lauffer, A. G. Istrate +1
Pulsating low-mass white dwarf stars are white dwarfs with stellar masses between 0.30~M and 0.45~M that show photometric variability due to gravity-mode pulsat…
Ground based observation of ZZ Ceti stars and the discovery of four new variables
Alejandra D. Romero, L. Antunes Amaral, T. Klippel +7
We perform ground based photometric observations of 22 DA white dwarf stars, 10 already known ZZ Cetis and 12 candidates with atmospheric parameters inside the classical instabilit…
The white dwarf mass-radius relation and its dependence on the hydrogen envelope
Alejandra D. Romero, S. O. Kepler, S. R. G. Joyce +2
We present a study of the dependence of the mass-radius relation for DA white dwarf stars on the hydrogen envelope mass and the impact on the value of log g, and thus the determina…
New full evolutionary sequences of H and He atmosphere massive white dwarf stars using MESA
G. R. Lauffer, A. D. Romero, S. O. Kepler
We explore the evolution of hydrogen-rich and hydrogen-deficient white dwarf stars with masses between 1.012 and 1.307 Msun, and initial metallicity of Z=0.02. These sequences are…