18 citations · 21 across the 6 of their papers we have counts for
6 papers
Cataclysmic Variables Photometric Periods from TESS
S. O. Kepler, Alejandra Daniela Romero, Larissa Luciano Amorim +1
We present a sample of coherent and stable photometric period determinations for cataclysmic variables, based on TESS photometry through sector 102. We analyzed a total of 1554 cat…
White Dwarf Classification of DESI DR1 Spectra1
Larissa L. Amorim, Weligton. N. Costa Junior, S. O. Kepler +3
We present a new catalog of spectroscopically confirmed white dwarfs from the Dark Energy Spectroscopic Instrument (DESI) Data Release 1. We visually classified 44,417 white dwarf…
Magnetic white dwarfs from DESI
Larissa L. Amorim, S. O. Kepler, Alejandra D. Romero
A significant fraction of white dwarfs, the degenerate remnants of low- and intermediate-mass stars, host strong magnetic fields; yet, the origin and evolution of these magnetic fi…
Evolution and formation of ultramassive white dwarf stars: The case for a 9Msun progenitor
Ana S. R. Antonini, Alejandra D. Romero, S. O. Kepler
We study the full evolution of a 1.313 Msun white dwarf star that descended from a 9 Msun main-sequence progenitor with an initial metallicity of Z=0.02. Using MESA r24.08.01, we c…
Pulsating low-mass white dwarfs in the frame of new evolutionary sequences VI. Thin H-envelope sequences and asteroseismology of ELMV stars revisited
Leila M. Calcaferro, Alejandro H. Córsico, Leandro G. Althaus +2
Some low-mass white-dwarf (LMWD) stars with H atmospheres show long-period g-mode pulsations, comprising the class of pulsating WDs called extremely low-mass variable (ELMV) stars.…
What's the nature of sdA stars?
Ingrid Pelisoli, S. O. Kepler, D. Koester +1
White dwarfs with log g lower than 7.0 are called Extremely Low Mass white dwarfs (ELMs). They were first found as companions to pulsars, then to other white dwarfs and main sequen…