No molecular gas disk in S106

Details No molecular gas disk in S106 No molecular gas disk in S106

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...343..212b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 343, Aug. 1, 1989, p. 212-221.

Astronomy and Astrophysics

Astronomy

20

Accretion Disks, H Ii Regions, Molecular Clouds, Nebulae, Nitric Oxide, Astronomical Photometry, Line Spectra, Pre-Main Sequence Stars, Radio Astronomy, Stellar Winds

Scientific paper

The radio and optical bipolar H II region, S106, is bisected by a dark lane. The premain-sequence object, S106 IR, which is the source of a powerful ionized stellar wind, is the exciting source of this region and is found at the center of the equatorial emission gap. The existence of a massive, extended, molecular gas disk has previously been suggested as an explanation for the peculiar morphology of this source, and S106 has widely been quoted as the best example of theoretically posited accretion disks. The new, high-resolution, CS and (C-13)O observations presented show that the molecular emission, previously attributed to a disk structure, actually originates from distinct masses of molecular gas, swept up from the ambient cloud core by the ionized lobes.

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