Can eta Carinae be a triple system?

Details Can eta Carinae be a triple system? Can eta Carinae be a triple system?

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.295l..59l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 295, Issue 4, pp. L59-L60.

Astronomy and Astrophysics

Astronomy

7

Binaries: General, Stars: Individual: Epsilon Car, Stars: Kinematics

Scientific paper

We examine the possibility that eta Carinae is a triple system. We show that a stable hierarchical system is possible, although perhaps only marginally. We outline a speculative scenario for the history of the system, in which the giant outburst of the last century is associated with an interchange of components in a dynamically unstable triple system. We point out that the currently observed spectroscopic `event' could be used to distinguish among the different possible configurations of the system.

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