Detection of high-velocity material from the wind-wind collision zone of Eta Carinae across the 2009.0 periastron passage
We report near-infrared spectroscopic observations of the Eta Carinae massive binary
system during 2008–2009 using the CRIRES spectrograph mounted on the 8 m UT 1 Very …
system during 2008–2009 using the CRIRES spectrograph mounted on the 8 m UT 1 Very …
Eta Carinae: an evolving view of the central binary, its interacting winds and its foreground ejecta
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 …
changes in resonant lines caused by dissipating extinction in our line of sight. The FUV flux …
Imaging the time evolution of Eta Carinae's colliding winds with HST
ABSTRACT We report new Hubble Space Telescope/Space Telescope Imaging
Spectrograph observations that map the high-ionization forbidden line emission in the inner …
Spectrograph observations that map the high-ionization forbidden line emission in the inner …
The environment of the wind–wind collision region of η Carinae
C Panagiotou, R Walter - Astronomy & Astrophysics, 2018 - aanda.org
Context. η Carinae is a colliding wind binary hosting two of the most massive stars and
featuring the strongest wind collision mechanical luminosity. The wind collision region of this …
featuring the strongest wind collision mechanical luminosity. The wind collision region of this …
η Carinae across the 2003.5 minimum: spectroscopic evidence for massive binary interactions
KE Nielsen, MF Corcoran, TR Gull… - The Astrophysical …, 2007 - iopscience.iop.org
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 …
Car) obtained with the STIS from 1998.0 to 2004.3. The data were obtained at discrete times …
The Optical Wind Line Variability of η Carinae During the 2009.0 Event
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 …
collected via SMARTS observations using the CTIO 1.5 m telescope and echelle …
Eta Carinae: A Tale of Two Periastron Passages
Abstract Since 2002, the far-ultraviolet (FUV) flux (1150–1680 Å) of Eta Carinae, monitored
by the Hubble Space Telescope/Space Telescope Imaging Spectrograph, has increased by …
by the Hubble Space Telescope/Space Telescope Imaging Spectrograph, has increased by …
Eta Carinae's 2014.6 Spectroscopic Event: The Extraordinary He II and N II Features
K Davidson, A Mehner, RM Humphreys… - The Astrophysical …, 2015 - iopscience.iop.org
Eta Carinae's spectroscopic events (periastron passages) in 2003, 2009, and 2014 differed
progressively. He ii λ4687 and nearby N ii multiplet 5 have special significance because …
progressively. He ii λ4687 and nearby N ii multiplet 5 have special significance because …
He ii λ4686 IN η CARINAE: COLLAPSE OF THE WIND–WIND COLLISION REGION DURING PERIASTRON PASSAGE
The periodic spectroscopic events in η Carinae are now well established and occur near the
periastron passage of two massive stars in a very eccentric orbit. Several mechanisms have …
periastron passage of two massive stars in a very eccentric orbit. Several mechanisms have …
Accretion onto the companion of Eta Carinae during the spectroscopic event. V: The infrared decline
We propose that the decline in the near-IR flux from the massive binary system η Carinae
during the spectroscopic event might be explained by accreted mass that absorbs the …
during the spectroscopic event might be explained by accreted mass that absorbs the …