Identification of emission lines in the low-ionization strontium filament near Eta Carinae
We have obtained deep spectra from 1640 to 10 100 Å with the Space Telescope Imaging
Spectrograph (STIS) of the strontium filament, a largely neutral emission nebulosity lying …
Spectrograph (STIS) of the strontium filament, a largely neutral emission nebulosity lying …
[Ti ii] and [Ni ii] emission from the strontium filament of η Carinae
We study the nature of the [Ti ii] and [Ni ii] emission from the so-called strontium filament
found in the ejecta of η Carinae. To this purpose, we employ multilevel models of the Ti ii …
found in the ejecta of η Carinae. To this purpose, we employ multilevel models of the Ti ii …
Sr II and [Sr II] emission in the ejecta of η Carinae
We have discovered four extremely surprising emission lines of strontium in ejecta near η
Carinae. Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS) …
Carinae. Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS) …
The FERRUM project: experimentally determined metastable lifetimes and transition probabilities for forbidden [Ti ii] lines observed in η Carinae
In the spectrum of an emission-line region ejected from the massive star Eta Carinae, called
the strontium filament (SrF), forbidden lines from many elements, in particular [Sr ii] and [Ti …
the strontium filament (SrF), forbidden lines from many elements, in particular [Sr ii] and [Ti …
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 …
obtained using STIS on the Hubble Space Telescope (HST). We have extracted the …
Excitation of Sr ii lines in Eta Carinae
MA Bautista, TR Gull, K Ishibashi… - Monthly Notices of …, 2002 - academic.oup.com
We study the nature of the peculiar [Sr ii] and Sr ii emission filament found in the ejecta of
Eta Carinae. To this purpose we carry out ab initio calculations of radiative transition …
Eta Carinae. To this purpose we carry out ab initio calculations of radiative transition …
New forbidden and fluorescent Fe III lines identified in HST spectra of eta Carinae
S Johansson, T Zethson, H Hartman… - … and Astrophysics, v …, 2000 - adsabs.harvard.edu
We discuss the origin of eight emission lines in the spectra of gas blobs close to the central
star of eta Carinae. The spectra have been obtained with the Goddard High Resolution …
star of eta Carinae. The spectra have been obtained with the Goddard High Resolution …
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 …
the late stages of its broad maximum using the Hubble Space Telescope (HST) Space …
The binarity of η Carinae revealed from photoionization modeling of the spectral variability of the weigelt blobs B and D
E Verner, F Bruhweiler, T Gull - The Astrophysical Journal, 2005 - iopscience.iop.org
We focus on two Hubble Space Telescope Space Telescope Imaging Spectrograph (HST
STIS) spectra of the Weigelt blobs B and D, extending from 1640 to 10400 Å, one recorded …
STIS) spectra of the Weigelt blobs B and D, extending from 1640 to 10400 Å, one recorded …
High-excitation emission lines near Eta Carinae, and its likely companion star
A Mehner, K Davidson, GJ Ferland… - The Astrophysical …, 2010 - iopscience.iop.org
In order to study the distribution of gas and ionizing radiation around η Car and their
implications for its likely companion star, we have examined high-excitation emission lines …
implications for its likely companion star, we have examined high-excitation emission lines …