Warm gas at 50 AU in the disk around Herbig Be star HD 100546

  title={Warm gas at 50 AU in the disk around Herbig Be star HD 100546},
  author={Miwa Goto and Gerrit van der Plas and M. van den Ancker and Cornelis P. Dullemond and Andres Carmona and Th. Henning and Gwendolyn Meeus and Hendrik Linz and B. Stecklum Mpia and Universityof Amsterdam and Eső and Universitat Heidelberg and University of Geneva and Universidad Aut'onoma de Madrid and Thuringer Landessternwarte Tautenburg},
  journal={Astronomy and Astrophysics},
Context. The disk atmosphere is one of the fundamental elements of theoretical models of a protoplanetary disk. However, the direct observation of the warm gas (≫100 K) at large radius of a disk (≫10 AU) is challenging, because the line emission from warm gas in a disk is usually dominated by the emission from an inner disk. Aims. Our goal is to detect the warm gas in the disk atmosphere well beyond 10 AU from a central star in a nearby disk system of the Herbig Be star HD 100546. Methods. We… 

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