61 citations · 406 across the 31 of their papers we have counts for
20 papers · 1 filter
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…
A grid of Non-LTE line-blanketed atmosphere structures and synthetic spectra for subdwarfs
Thayse A. Pacheco, Ronaldo S. Levenhagen, Marcos P. Diaz +1
We present an update of the grid of detailed atmosphere models and homogeneous synthetic spectra for hot, high-gravity subdwarf stars. High-resolution spectra and synthetic photome…
Detached eclipsing binaries from the Kepler field: radii and photometric masses of components in short-period systems
Patricia Cruz, John F. Aguilar, Hernán E. Garrido +2
The characterisation of detached eclipsing binaries with low mass components has become important when verifying the role of convection in stellar evolutionary models, which requir…
A Grid of Synthetic Spectra for Subdwarfs: Non-LTE line-blanketed atmosphere models
Thayse A. Pacheco, Marcos P. Diaz, Ronaldo S. Levenhagen +1
A new grid of detailed atmosphere model spectra for hot and moderately cool subdwarf stars is presented. High-resolution spectra and synthetic photometry are calculated in the rang…
The H line emission of the Be star Psc: the last 40 years
Ronaldo S. Levenhagen, Marcos P. Diaz, Eduardo B. Amôres +1
A study on the photosphere and disc of the Be star Psc is presented. We recover almost 40 years of high-resolution spectroscopic observations and additional data gathered from…
Imaging and analysis of neon nova V382 Vel shell
Larissa Takeda, Marcos Diaz
We present the detection and imaging of the spatially resolved shell of nova V382 Vel with SOAR adaptive optics module (SAM). The shell was observed in narrow band filters H and…