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OHANA: Eta Carinae's Variability in the Near-IR

Published online by Cambridge University Press:  23 January 2015

Andrea Mehner
Affiliation:
European Southern Observatory, Alonso de Cordova 3107, Vitacura, Chile email: [email protected]
Willem-Jan de Wit
Affiliation:
European Southern Observatory, Alonso de Cordova 3107, Vitacura, Chile email: [email protected]
Thomas Rivinius
Affiliation:
European Southern Observatory, Alonso de Cordova 3107, Vitacura, Chile email: [email protected]
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Abstract

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Near-IR photometry of η Car since 1972 revealed a long-term trend towards hotter temperatures and a cycloidal behavior of its near-IR colors around periastron passages. Both effects are likely triggered by the companion. We used VLTI AMBER observations from 2004–2014 to investigate η Car's variabilities in the near-IR.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2015 

References

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