The departure of η Carinae from axisymmetry and the binary hypothesis

摘要: I argue that the large-scale departure from axisymmetry of η Carinae nebula can be explained by binary star model Carinae. The companion diverts wind blown primary star, accreting and possibly blowing its own collimated fast (CFW). effect these processes depends on orbital separation, hence phase eccentric orbit. variation mass outflow system with leads to a along equatorial plane, as is observed in further speculate such may have accreted large fraction was expelled Great Eruption 1850 Lesser 1890. accretion process likely form an disc, formation CFW, or jets, two sides disc. CFW played crucial role lobes.