Submillimetre/millimetre observations of AFGL 490

Details Submillimetre/millimetre observations of AFGL 490 Submillimetre/millimetre observations of AFGL 490

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...247..157c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 247, no. 1, July 1991, p. 157-162.

Astronomy and Astrophysics

Astronomy

21

Infrared Sources (Astronomy), Interstellar Matter, Star Formation, Astronomical Maps, Cosmic Dust, Millimeter Waves, Submillimeter Waves

Scientific paper

Continuum maps of AFGL 490 at 870 and 1300 microns and 14 arcsec resolution are presented. They show a compact source whose physical parameters are consistent with the existence of a small disk-like structure of high optical depth. This compact source is embedded in a region of extended submm/mm emission. The main axis of this structure is perpendicular to the direction of the CO outflow and thus seems to be related with the collimation of the molecular stream. The energy distribution from optical to radio wavelengths is interpreted in terms of various dust components and discuss the range of resulting parameters. The mid-infrared emission either originates from an extended region surrounding the compact structure or is due to radiation scattered at the poles of a disk/torus.

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