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astro-ph2002★ 105 cited
Dissecting the Homunculus nebula around Eta Carinae with spatially resolved near-infrared spectroscopy
Nathan Smith
Near-infrared emission lines provide unique diagnostics of the geometry, structure, kinematics, and excitation of eta Carinae's circumstellar ejecta, and give clues to the nature o…
astro-ph2002★ 88 cited
Crossing the `Yellow Void' -- Spatially Resolved Spectroscopy of the Post- Red Supergiant IRC+10420 and Its Circumstellar Ejecta
Roberta M. Humphreys, Kris Davidson, Nathan Smith
IRC +10420 is one of the extreme hypergiant stars that define the empirical upper luminosity boundary in the HR diagram. During their post--RSG evolution, these massive stars enter…
astro-ph2002★ 37 cited
A disrupted circumstellar torus inside eta Carinae's Homunculus Nebula
Nathan Smith, Robert D. Gehrz, Phillip M. Hinz +4
We present thermal infrared images of the bipolar nebula surrounding eta Carinae at six wavelengths from 4.8 to 24.5 microns. These were obtained with the MIRAC3 camera system at t…