Radiative hydrodynamics simulations of red supergiant stars - II. Simulations of convection on Betelgeuse match interferometric observations

  title={Radiative hydrodynamics simulations of red supergiant stars - II. Simulations of convection on Betelgeuse match interferometric observations},
  author={Andrea Chiavassa and X. Haubois and J. S. Young and Bertrand Plez and Eric Josselin and Guy Perrin and Bernd Freytag},
  journal={Astronomy and Astrophysics},
Context. The red supergiant (RSG) Betelgeuse is an irregular variable star. Convection may play an important role in understanding this variability. Interferometric observations can be interpreted using sophisticated simulations of stellar convection. Aims. We compare the visibility curves and closure phases obtained from our 3D simulation of RSG convection with CO5BOLD to various interferometric observations of Betelgeuse from the optical to the H band to characterize and measure the… 

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