FUSE observations of H2 around the Herbig AeBe stars HD 100546 and HD 163296

Details FUSE observations of H2 around the Herbig AeBe stars HD 100546 and HD 163296 FUSE observations of H2 around the Herbig AeBe stars HD 100546 and HD 163296

2003-06-23

arxiv.org/abs/astro-ph/0306449v1

Astron.Astrophys.407:935-940,2003

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures, to be published in A&A

Scientific paper

10.1051/0004-6361:20030924

We present the analysis of FUSE observations of two Herbig AeBe stars known to harbor young circumstellar disks: HD 100546 and HD 163296. In both cases we detect absorption lines from warm and dense H2. The thermalization of the rotational levels up to J~4 allows evaluation of the temperature, density and typical size of the absorbing layer. These quantities are consistent with absorption of the light of the central star by a thin layer of a circumstellar disk seen at an intermediate inclination.

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