ETA CARINAE --- an evolved triple-star system?

Details ETA CARINAE --- an evolved triple-star system? ETA CARINAE --- an evolved triple-star system?

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003chjas...3..349k&link_type=abstract

Chinese Journal of Astronomy & Astrophysics, Vol. 3, Supplement, p. 349-360

Astronomy and Astrophysics

Astrophysics

Η Carinae, Stars: Most Massive, Super-Eddington Sources, Triple-Star System

Scientific paper

From the wealth of data on the source η Carinae it is concluded that it consists of two moderately massive (ordinary) stars plus a neutron star, the latter in close orbit around the secondary. As an extreme case among high-mass stars, η Car may teach us that stellar masses do not exceed 60 M&sun;. Several of η Car's peculiar properties are due to its three interacting wind zones. Its transient super-Eddington outputs --- during the years 1843 and 1887 --- are blamed on the assemblance of a heavy accretion disk around the neutron star (near peri-astron), and the disk's occasional discharging towards it.

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