The complex circumstellar environment around the massive binary and luminous blue
variable η Carinae is known to harbor numerous light molecules, emitting most strongly in …

Abstract We present Atacama Large Millimeter Array (ALMA) observations of 12CO 2–1
emission from circumstellar material around the massive star Eta Carinae (η Car). These …

Single-dish submillimeter observations have recently revealed the existence of a
substantial, chemically peculiar molecular gas component located in the innermost …

The evolved massive binary star η Carinae underwent eruptive mass-loss events that
formed the complex bi-polar 'Homunculus' nebula harbouring tens of solar masses of …

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 …

ABSTRACT η Carinae is an extremely luminous and energetic colliding-wind binary. The
combination of its orbit and orientation, with respect to our line of sight, enables direct …

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 very massive star η Carinae (η Car) is enshrouded in an unusual complex of stellar
ejecta, which is highly depleted in C and O and enriched in He and N. This circumstellar gas …

The highly eccentric binary system, η Car, provides clues to the transition of massive stars
from hydrogen–burning via the CNO cycle to a helium–burning evolutionary state. The fast …

We investigated continuum and molecular line emission of four species (CO, HCN, H13CN,
and HCO+) at 0.8 mm in the inner region around η Car, using ALMA archival observations at …