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 …

Abstract Spectra (1951–78) of the central object in η Car, taken by AD Thackeray, reveal
three previously unrecorded epochs of low excitation. Since 1948, at least, these states have …

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 …

Damineli et al.(1997)[NewA, 2, 107] have recently proposed a specific binary model for η
Carinae. It is based on wavelength shifts in hydrogen and helium emission lines, and may …

Eta Carinae is one of the most massive luminous blue variable stars (LBVs) in the Milky
Way. Here a new historic light curve is presented which supersedes earlier works, and is …

We have analyzed high spatial, moderate spectral resolution observations of η Carinae (η
Car) obtained with the STIS from 1998.0 to 2004.3. The data were obtained at discrete times …

ABSTRACT I have discovered spectroscopic variations correlated with the photometric near-
infrared (NIR) light curve in &eegr; Carinae. The fading of the high-excitation lines is …

Abstract Infrared (1.25–3.5 μm) light curves of η Carinae covering the last 20 yr are
presented and discussed. Three features are clearly seen in these data. First there is an …

We describe and analyze Hubble Space Telescope (HST) observations of transient
emission near 4680 Å in η Car, reported earlier by Steiner & Damineli. If, as seems …

We present new observations of η Carinae, strongly suggesting that it is a binary system.
High dispersion measurements of the broad Paγ emission line show periodic radial velocity …