Changes in the Na D1 Absorption Components of η Carinae Provide Clues on the Location of the Dissipating Central Occulter

CS Pickett, ND Richardson, TR Gull… - The Astrophysical …, 2022 - iopscience.iop.org
The Na D absorption doublet in the spectrum of η Carinae is complex, with multiple
absorption features associated with the Great Eruption (1840s), the Lesser Eruption (1890s) …

Eta Carinae: an evolving view of the central binary, its interacting winds and its foreground ejecta

TR Gull, DJ Hillier, H Hartman… - The Astrophysical …, 2022 - iopscience.iop.org
FUV spectra of η Car, recorded across two decades with HST/STIS, document multiple
changes in resonant lines caused by dissipating extinction in our line of sight. The FUV flux …

The Long-term Spectral Changes of Eta Carinae: Are they Caused by a Dissipating Occulter as Indicated by CMFGEN Models?

A Damineli, DJ Hillier, F Navarete… - The Astrophysical …, 2023 - iopscience.iop.org
Abstract Eta Carinae (η Car) exhibits a unique set of P Cygni profiles with both broad and
narrow components. Over many decades, the spectrum has changed—there has been an …

[PDF][PDF] The Long-term Spectral Changes of Eta Carinae

I Thomas, D Espinoza-Galeas… - The Astrophysical …, 2023 - pure-oai.bham.ac.uk
Abstract Eta Carinae (η Car) exhibits a unique set of P Cygni profiles with both broad and
narrow components. Over many decades, the spectrum has changed—there has been an …

Eta Carinae left a curious ladder to climb

TR Gull, H Hartman, MF Corcoran, A Damineli… - arXiv preprint arXiv …, 2024 - arxiv.org
Eta Carinae underwent the Great Eruption in the 1840s and a Lesser Eruption in the 1890s.
Its apparent spectrum, modified by intervening ejecta, the Homunculus and Little …

Eta Carinae: the dissipating occulter is an extended structure

TR Gull, H Hartman, M Teodoro, DJ Hillier… - The Astrophysical …, 2023 - iopscience.iop.org
Abstract Previous Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph
(STIS) longslit observations of Eta Carinae (η Car) identified numerous absorption features …