62 citations
- Universidade de São PauloBR4 papers
- Universidade do Vale do ParaíbaBR4 papers
- Laboratório Nacional de AstrofísicaBR2 papers
- Universidade Federal de Santa CatarinaBR2 papers
- Argentine National ObservatoryAR1 paper
- Gemini South ObservatoryCL1 paper
- Institute of Astrophysics and Space SciencesPT1 paper
- Isaac Newton GroupES1 paper
- Max Planck SocietyDE1 paper
- National Observatory of AthensGR1 paper
- Universidade Federal de Santa MariaBR1 paper
- Universidade Federal do Rio Grande do SulBR1 paper
7 papers
Electron temperature fluctuations in NGC 346
V. A. Oliveira, M. V. F. Copetti, A. C. Krabbe
The existence and origin of large spatial temperature fluctuations in HII regions and planetary nebulae are assumed to explain the differences between the heavy element abundances…
Kinematics and physical properties of Southern interacting galaxies: the minor merger AM 2306-721
A. C. Krabbe, M. G. Pastoriza, Claudia Winge +2
We present an observational study about the effects of the interactions in the kinematics, stellar population and abundances of the components of the galaxy pair AM2306-721. Rotati…
The qWR star HD 45166. II. Fundamental stellar parameters and evidence of a latitude-dependent wind
J. H. Groh, A. S. Oliveira, J. E. Steiner
The enigmatic object HD 45166 is a qWR star in a binary system with an orbital period of 1.596 day, and presents a rich emission-line spectrum in addition to absorption lines from…
A multicolor near-infrared study of the dwarf nova IP Peg
T. Ribeiro, R. Baptista, E. T. Harlaftis +2
We report the analysis of light curves of the eclipsing dwarf nova IP Peg in quiescence. The light curves are dominated by the ellipsoidal variation of the mass-donor sta…
CAL 87 - an evolved wind-driven supersoft X-ray binary
A. S. Oliveira, J. E. Steiner
Compact binary supersoft X-ray sources (CBSS) are explained as being associated with hydrostatic nuclear burning on the surface of a white dwarf with high accretion rate. This high…
Transient jets in V617 Sagittarii
J. E. Steiner, A. S. Oliveira, C. A. O. Torres +1
Some of the luminous Compact Binary Supersoft X-Ray sources (CBSS) have shown indications of jets, also called satellites due to their appearance in the spectra. In V Sagittae (V S…