498 citations
- Universidade de São PauloBR32 papers
- Laboratório Nacional de AstrofísicaBR20 papers
- Centre National de la Recherche ScientifiqueFR16 papers
- Cerro Tololo Inter-American ObservatoryCL15 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR13 papers
- Carnegie Institution for ScienceUS11 papers
- Carnegie ObservatoriesUS11 papers
- California Institute of TechnologyUS10 papers
- Las Campanas ObservatoryCL10 papers
- Universidade Federal do Rio Grande do SulBR10 papers
- Universidad Nacional de La PlataAR10 papers
- University of ChileCL10 papers
6 papers · 1 filter
Star-forming regions and the metallicity gradients in the tidal tails: The case of NGC 92
Sergio Torres-Flores, Sergio Scarano, Claudia Mendes de Oliveira +3
We present new Gemini/GMOS spectroscopic and archival imaging data of the interacting galaxy NGC 92, which is part of a compact group and displays an extended tidal tail. We have s…
Asteroseismological study of massive ZZ Ceti stars with fully evolutionary models
A. D. Romero, S. O. Kepler, A. H. Córsico +2
We present the first asteroseismological study for 42 massive ZZ Ceti stars based on a large set of fully evolutionary carbonoxygen core DA white dwarf models characterized by a…
Accretion and activity on the post-common-envelope binary RR~Cae
T. Ribeiro, R. Baptista, S. Kafka +3
Current scenarios for the evolution of interacting close binaries - such as cataclysmic variables (CVs) - rely mainly on our understanding of low-mass star angular momentum loss (A…
SOAR Adaptive Optics Observations of the Globular Cluster NGC6496
Luciano Fraga, Andrea Kunder, Andrei Tokovinin
We present high-quality BVRI photometric data in the field of globular cluster NGC 6496 obtained with the SOAR Telescope Adaptive Module (SAM). Our observations were collected as p…
The Brazilian Tunable Filter Imager for the SOAR telescope
Cláudia Mendes de Oliveira, Keith Taylor, Bruno Quint +22
This paper presents a new Tunable Filter Instrument for the SOAR telescope. The Brazilian Tunable Filter Imager (BTFI) is a versatile, new technology, tunable optical imager to be…
Periodic Variations in the O-C Diagrams of Five Pulsation Frequencies of the DB White Dwarf EC 20058-5234
James Dalessio, Denis Sullivan, Judi Provencal +5
Variations in the pulsation arrival time of five independent pulsation frequencies of the DB white dwarf EC 20058-5234 individually imitate the effects of reflex motion induced by…