The enigmatic nature of the circumstellar envelope and bow shock surrounding Betelgeuse as revealed by Herschel - I. Evidence of clumps, multiple arcs, and a linear bar-like structure

@article{Decin2012TheEN,
title={The enigmatic nature of the circumstellar envelope and bow shock surrounding Betelgeuse as revealed by Herschel - I. Evidence of clumps, multiple arcs, and a linear bar-like structure},
author={L. Decin and N. Cox and P. Royer and A. J. Marle and B. Vandenbussche and D. Ladjal and F. Kerschbaum and R. Ottensamer and M. Barlow and J. Blommaert and H. Gomez and M. Groenewegen and T. Lim and B. Swinyard and C. Waelkens and A. Tielens},
journal={Astronomy and Astrophysics},
year={2012},
volume={548}
}
Context. The interaction between stellar winds and the interstellar medium (ISM) can create complex bow shocks. The photometers on board the Herschel Space Observatory are ideally suited to studying the morphologies of these bow shocks.Aims. We aim to study the circumstellar environment and wind-ISM interaction of the nearest red supergiant, Betelgeuse.Methods. Herschel PACS images at 70, 100, and 160 μ m and SPIRE images at 250, 350, and 500 μ m were obtained by scanning the region around… Expand