We have measured the brightness variations in η Carinae for the past 6 years using the Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph and Advanced …
Context. The periodicity of 5.5 years for some observational events occurring in η Carinae manifests itself across a large wavelength range and has been associated with its binary …
K Davidson, TR Gull, RM Humphreys… - The Astronomical …, 1999 - iopscience.iop.org
Abstract HST/Space Telescope Imaging Spectrograph data show that the apparent near-UV, visual-wavelength, and near-IR brightness of η Car increased by a factor of two during 1998 …
A Mehner, K Ishibashi, P Whitelock… - Astronomy & …, 2014 - aanda.org
Aims. Eta Car's ultra-violet, optical, and X-ray light curves and its spectrum suggest a physical change in its stellar wind over the last decade. It has been proposed that the mass …
We report on high-resolution spectroscopy of the 2009.0 spectroscopic event of η Carinae collected via SMARTS observations using the CTIO 1.5 m telescope and echelle …
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 …
AM van Genderen, C Sterken - Astronomy & Astrophysics, 2004 - aanda.org
A comparison of broad-band photometry of the Homunculus (ground-based data) and of broad-band and narrow-band photometry of the central region (HST-based) from 1997 to …
M Feast, P Whitelock, F Marang - Monthly Notices of the Royal …, 2001 - academic.oup.com
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 …
The motivations for a meeting on h Carinae at this time were many–the remarkable discoveries in the past few years about the spectra of the star and its ejecta, the bipolar …