OHANA: Eta Carinae's Variability in the Near-IR
Abstract
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.
- Publication:
-
New Windows on Massive Stars
- Pub Date:
- January 2015
- DOI:
- Bibcode:
- 2015IAUS..307..121M
- Keywords:
-
- stars: atmospheres;
- (stars:) circumstellar matter;
- stars: emission-line;
- Be;
- stars: individual (eta Carinae);
- stars: mass loss;
- stars: winds;
- outflows