68 citations · 274 across the 15 of their papers we have counts for
5 papers · 1 filter
Wind-wind collision in the eta Carinae binary system - III. The HeII 4686 line profile
Z. Abraham, D. Falceta-Goncalves
We modeled the HeII 4686 line profiles observed in the eta Carinae binary system close to the 2003.5 spectroscopic event, assuming that they were formed in the shocked gas that flo…
Wind-wind collision in the Carinae binary system II: Constrains to the binary orbital parameters from radio emission near periastron passage
Z. Abraham, D. Falceta-Goncalves, T. P. Dominici +2
In this paper we use the 7 mm and 1.3 mm light curves obtained during the 2003.5 low excitation phase of the eta Carinae system to constrain the possible parameters of the binary o…
Millimeter-wave emission during the 2003 low excitation phase of eta Carinae
Z. Abraham, D. Falceta-Goncalves, T. P. Dominici +5
In this paper we present observations of eta Carinae in the 1.3 mm and 7 mm radio continuum, during the 2003.5 low excitation phase. The expected minimum in the light curves was co…
Observational evidence of spin-induced precession in active galactic nuclei
Anderson Caproni, Herman J. Mosquera Cuesta, Zulema Abraham
We show that it is possible to explain the physical origin of jet precession in active galactic nuclei (AGNs) through the misalignment between the rotation axes of the accretion di…
Wind-Wind Collision in the eta Carinae Binary System: a Shell-Like Event Near Periastron
D. Falceta-Goncalves, V. Jatenco-Pereira, Z. Abraham
The exact nature of eta Carinae is still an open issue. In this paper we assume a binary system to explain the strong X-ray emission, but we also take into account that, near peria…