Mid-infrared evolution of η Carinae from 1968 to 2018

  title={Mid-infrared evolution of $\eta$ Carinae from 1968 to 2018},
  author={A. Mehner and W. J. de Wit and Daniel Asmus and P. W. Morris and Claudia Agliozzo and Michael J. Barlow and T R Gull and D. John Hillier and G. Weigelt},
  journal={Astronomy \& Astrophysics},
η Car is one of the most luminous and massive stars in our Galaxy and is the brightest mid-IR source in the sky outside our solar system. Since the late 1990s, the central source has dramatically brightened at UV and optical wavelengths. This might be explained by a decrease in circumstellar dust extinction. We aim to establish the mid-IR flux evolution and further our understanding of the star’s UV and optical brightening. Mid-IR images from 8−20 μm were obtained in 2018 with VISIR at the Very… Expand

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