He II λ4686 EMISSION FROM THE MASSIVE BINARY SYSTEM IN η CAR: CONSTRAINTS TO THE ORBITAL ELEMENTS AND THE NATURE OF THE PERIODIC …
M Teodoro, A Damineli, B Heathcote… - The Astrophysical …, 2016 - iopscience.iop.org
ABSTRACT Eta Carinae (η Car) is an extremely massive binary system in which rapid
spectrum variations occur near periastron. Most notably, near periastron the He ii λ4686 line …
spectrum variations occur near periastron. Most notably, near periastron the He ii λ4686 line …
[HTML][HTML] VLTI-AMBER velocity-resolved aperture-synthesis imaging of η Carinae with a spectral resolution of 12 000-Studies of the primary star wind and innermost …
G Weigelt, KH Hofmann, D Schertl, N Clementel… - Astronomy & …, 2016 - aanda.org
Context. The mass loss from massive stars is not understood well. η Carinae is a unique
object for studying the massive stellar wind during the luminous blue variable phase. It is …
object for studying the massive stellar wind during the luminous blue variable phase. It is …
The fossil wind structures of Eta Carinae: changes across one 5.54-yr cycle
Eta Carinae, the closest, active, massive binary containing a highly unstable Luminous Blue
Variable, exhibits expanding, compressed wind shells, seen in emission, that are spatially …
Variable, exhibits expanding, compressed wind shells, seen in emission, that are spatially …
To v∞ and beyond! The He i absorption variability across the 2014.6 periastron passage of η Carinae
ND Richardson, TI Madura, L St-Jean… - Monthly Notices of …, 2016 - academic.oup.com
We have monitored the massive binary star η Carinae with the CTIO/Small and Moderate
Aperture Research Telescope System 1.5 m telescope and CHIRON spectrograph from the …
Aperture Research Telescope System 1.5 m telescope and CHIRON spectrograph from the …
Orbital Parameters for the 250 M⊙ Eta Carinae Binary System
We show that recent observations of He i and N ii lines of η Carinae may provide support for
an orbital orientation where the secondary star is closest to us at periastron passages. This …
an orbital orientation where the secondary star is closest to us at periastron passages. This …
Eta Carinae's thermal X-ray tail measured with XMM-Newton and NuSTAR
K Hamaguchi, MF Corcoran, TR Gull… - The Astrophysical …, 2016 - iopscience.iop.org
The evolved, massive highly eccentric binary system, η Car, underwent a periastron
passage in the summer of 2014. We obtained two coordinated X-ray observations with XMM …
passage in the summer of 2014. We obtained two coordinated X-ray observations with XMM …
Spatial distribution and kinematics of the molecular material associated with eta Carinae
L Loinard, T Kamiński, P Serra… - The Astrophysical …, 2016 - iopscience.iop.org
Single-dish submillimeter observations have recently revealed the existence of a
substantial, chemically peculiar molecular gas component located in the innermost …
substantial, chemically peculiar molecular gas component located in the innermost …
Is the stellar system WR 11 a gamma-ray source?
P Benaglia - Publications of the Astronomical Society of Australia, 2016 - cambridge.org
Many early-type stars are in systems; some of them have been indicated as putative high-
energy emitters. The radiation would be produced at the region where two stellar winds …
energy emitters. The radiation would be produced at the region where two stellar winds …
The wind-wind collision hole in eta Car
Eta Carinae is one of the most massive observable binaries. Yet determination of its orbital
and physical parameters is hampered by obscuring winds. However the effects of the strong …
and physical parameters is hampered by obscuring winds. However the effects of the strong …
The fossil wind structures of Eta Carinae: changes across on 5.54-year cycle
Eta Carinae, the closest, active, massive binary containing a highly unstable LBV, exhibits
expanding, compressed wind shells, seen in emission, that are spatially and spectrally …
expanding, compressed wind shells, seen in emission, that are spatially and spectrally …