Mid-infrared studies of eta Carinae-I. Subarcsecond imaging of 12.5 and 17 mum

Details Mid-infrared studies of eta Carinae-I. Subarcsecond imaging of 12.5 and 17 mum Mid-infrared studies of eta Carinae-I. Subarcsecond imaging of 12.5 and 17 mum

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.273..354s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 273, Issue 2, pp. 354-358.

Astronomy and Astrophysics

Astronomy

33

Circumstellar Matter-Stars, Individual, Eta Carinae-Dust, Extinction-Infrared, Stars.

Scientific paper

Subarcsecond imaging of eta Carinae in the mid-infrared has confirmed that the structure of the homunculus is that of two partially filled, osculating spherical shells. The central star is embedded in hot dusty circumstellar material in close proximity to a complex of cooler, but more massive, small-scale features, probably radiatively heated by the central material. Some of the features have arc-like extensions which are resolved into loop- or ring-like associations of smaller sources. These structures comprise the central core region of eta Carinae, of size 5x4 arcsec^2, which is otherwise of relatively low density.

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