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

摘要

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.