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The evolutionary status of eta Car based on historical and modern optical and infrared photometry

  • Massive Star Atmospheres and Stellar Winds
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Abstract

We present a photometric study of the luminous early-type star η Car. The star's secular brightness increase is due largely to the expansion of the Homunculus. η Car is a LBV with a possible B0.5V companion. The combined effect of Balmer-line emission, and of warm and cold dust radiation explains the star's other light variations.

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Authors and Affiliations

  1. Leiden Observatory, Leiden, Netherlands

    A. M. van Genderen

  2. Armagh Observatory, Armagh, UK

    M. de Groot

  3. Astronomical Institute, Amsterdam

    P. S. The

Authors
  1. A. M. van Genderen
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  2. M. de Groot
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  3. P. S. The
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van Genderen, A.M., de Groot, M. & The, P.S. The evolutionary status of eta Car based on historical and modern optical and infrared photometry. Space Sci Rev 66, 219–223 (1993). https://doi.org/10.1007/BF00771070

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  • DOI: https://doi.org/10.1007/BF00771070

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