N ii λλ5668–5712: A NEW CLASS OF SPECTRAL FEATURES IN ETA CARINAE

A Mehner, K Davidson, GJ Ferland - The Astrophysical Journal, 2011 - iopscience.iop.org
We report on the N ii λλ5668–5712 emission and absorption lines in the spectrum of η
Carinae. Spectral lines of the stellar wind regions can be classified into four physically …

Variable Unidentified Emission Near 6307 Å in η Carinae1, 2

JC Martin, K Davidson, F Hamann… - Publications of the …, 2006 - iopscience.iop.org
We have discovered a conspicuous unidentified variable feature near 6307 Å in the
spectrum of η Carinae that is spatially unresolved from the central star and its wind (r≲ 200 …

On the Nature of the Central Source in η Carinae

DJ Hillier, K Davidson, K Ishibashi… - The Astrophysical …, 2001 - iopscience.iop.org
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 …

Long-term spectroscopy of η Carinae-I. The high and low excitation phases

A Damineli, O Stahl, A Kaufer, B Wolf… - Astronomy and …, 1998 - aas.aanda.org
Quantitative measurements of line parameters in the spectrum of η Carinae are presented
for both the broad and narrow line components. A total of 655 spectral features were …

The ultraviolet spectrum of eta Carinae. II. 1980 IUE observations of the Homunculus.

GB Baratta, A Cassatella, R Viotti - Astronomy and Astrophysics …, 1995 - adsabs.harvard.edu
We analyze the ultraviolet observations of the circumstellar nebula of η Car (the
Homunculus) obtained in December 1980 with IUE. A high resolution spectrum was …

η Carinae: The optical flare-like events during low-excitation passages

AM van Genderen, C Sterken, WH Allen - Astronomy & Astrophysics, 2003 - aanda.org
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 …

[HTML][HTML] The Far Ultraviolet Spectrum of Eta Carinae

R Iping, G Sonneborn, T Gull, D Massa… - Eta Carinae and …, 2001 - adsabs.harvard.edu
The first far ultraviolet high spectral resolution observations of ij Carinae were obtained with
the Far Ultraviolet Spectroscopic Explorer satellite in February and March 2000. The …

The UV scattering halo of the central source associated with η Carinae

DJ Hillier, T Gull, K Nielsen, G Sonneborn… - The Astrophysical …, 2006 - iopscience.iop.org
We have made an extensive study of the UV spectrum of η Carinae and find that we do not
directly observe the star and its wind in the UV. Because of dust along our line of sight, the …

On the He II emission in η Carinae and the origin of its spectroscopic events

JC Martin, K Davidson, RM Humphreys… - The Astrophysical …, 2006 - iopscience.iop.org
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 …

The Ultraviolet Spectrum of η Carinae: Investigation of the Ejecta Absorption

KE Nielsen, TR Gull, GV Kober - The Astrophysical Journal …, 2005 - iopscience.iop.org
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 …