A robust, template-free approach to precise radial velocity extraction
VM Rajpaul, S Aigrain… - Monthly Notices of the …, 2020 - academic.oup.com
Doppler spectroscopy is a powerful tool for discovering and characterizing exoplanets. For
decades, the standard approach to extracting radial velocities (RVs) has been to cross …
decades, the standard approach to extracting radial velocities (RVs) has been to cross …
Constraints on decreases in η Carinae's mass-loss from 3D hydrodynamic simulations of its binary colliding winds
TI Madura, TR Gull, AT Okazaki… - Monthly Notices of …, 2013 - academic.oup.com
Recent work suggests that the mass-loss rate of the primary star ηA in the massive colliding
wind binary η Carinae dropped by a factor of 2–3 between 1999 and 2010. We present …
wind binary η Carinae dropped by a factor of 2–3 between 1999 and 2010. We present …
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 …
The 2014 X-ray minimum of η Carinae as seen by Swift
MF Corcoran, J Liburd, D Morris… - The Astrophysical …, 2017 - iopscience.iop.org
We report on Swift X-ray Telescope observations of Eta Carinae (η Car), an extremely
massive, long-period, highly eccentric binary obtained during the 2014.6 X-ray …
massive, long-period, highly eccentric binary obtained during the 2014.6 X-ray …
Simulating the formation of η Carinae's surrounding nebula through unstable triple evolution and stellar merger-induced eruption
ABSTRACT η Carinae is an extraordinary massive star famous for its 19th century Great
Eruption and the surrounding Homunculus nebula ejected in that event. The cause of this …
Eruption and the surrounding Homunculus nebula ejected in that event. The cause of this …
[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 …
VLTI-MATISSE chromatic aperture-synthesis imaging of η Carinae's stellar wind across the Brα line-Periastron passage observations in February 2020
G Weigelt, KH Hofmann, D Schertl, B Lopez… - Astronomy & …, 2021 - aanda.org
Context. Eta Carinae is a highly eccentric, massive binary system (semimajor axis~ 15.5 au)
with powerful stellar winds and a phase-dependent wind-wind collision (WWC) zone. The …
with powerful stellar winds and a phase-dependent wind-wind collision (WWC) zone. The …
Spectroscopic signatures of the vanishing natural coronagraph of Eta Carinae
A Damineli, F Navarete, DJ Hillier… - Monthly Notices of …, 2021 - academic.oup.com
Eta Carinae is a massive interacting binary system shrouded in a complex circumstellar
environment whose evolution is the source of the long-term brightening observed during the …
environment whose evolution is the source of the long-term brightening observed during the …
The three-dimensional structure of the Eta Carinae Homunculus
We investigate, using the modelling code shape, the three-dimensional structure of the
bipolar Homunculus nebula surrounding Eta Carinae as mapped by new ESO Very Large …
bipolar Homunculus nebula surrounding Eta Carinae as mapped by new ESO Very Large …
Eta Carinae's 2014.6 spectroscopic event: Clues to the long-term recovery from its Great Eruption
A Mehner, K Davidson, RM Humphreys… - Astronomy & …, 2015 - aanda.org
Aims. Every 5.5 years, η Car's light curve and spectrum change remarkably across all
observed wavelength bands. These so-called spectroscopic events are most likely caused …
observed wavelength bands. These so-called spectroscopic events are most likely caused …