Neste trabalho apresentamos uma análise das observaçoes das linhas de recombinaçao
em ondas milimétricas (H30α, H35α, H40α e H50β) na direçao de η Carinae obtidas, entre …

A full description of the 5.5-yr low excitation events in η Carinae is presented. We show that
they are not as simple and brief as previously thought, but a combination of two components …

The 1992.5 and 1998.0 low-excitation events of the possible binary in the core of η Carinae
show a conspicuous flare-like event in optical and near-ultraviolet light. These events last a …

We have investigated the far-through mid-UV (1150-2360 Å) spectrum of η Carinae during
the late stages of its broad maximum using the Hubble Space Telescope (HST) Space …

We describe how the 5.52-year cycle in~ Carinae was discovered, what the main
characteristics of the spectroscopic events are, and how this periodicity opened important …

Long-slit spectroscopic observations of η Carinae and its Homunculus have recently been
obtained using STIS on the Hubble Space Telescope (HST). We have extracted the …

Extensive spectral observations of η Carinae over the last cycle, and particularly around the
2003.5 low-excitation event, have been obtained. The variability of both narrow and broad …

During the past decade, several observational and theoretical works have provided
evidence of the binary nature of η Carinae. Nevertheless, there is still no direct …

We report on Hα spectroscopy of the 2009.0 spectroscopic event of η Carinae collected via
SMARTS observations using the Cerro Tololo Interamerican Observatory 1.5 m telescope …

Some long-forgotten spectroscopic observations with the Great Melbourne Telescope (GMT)
are described. They show a possible change in the spectrum of Eta Carinae in January …