Aperture synthesis observation of small clumps in Orion-KL

Details Aperture synthesis observation of small clumps in Orion-KL Aperture synthesis observation of small clumps in Orion-KL

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasj...44..381m&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 44, no. 4, p. 381-389.

Other

15

Cosmic Dust, Interstellar Matter, Nebulae, Spectral Emission, Star Formation, Astronomical Maps, Astronomical Spectroscopy, Emission Spectra, H Ii Regions, Molecular Spectra

Scientific paper

We have made aperture synthesis observations of continuum emission at 3 mm using the Nobeyama Millimeter Array and obtained about 2 x 3 arcsec resolution image. From high-resolution, high-dynamic range images, eight compact clumps have been identified. One of them is associated with a BN object; its flux at 3.06 mm is consistent with free-free emission. Dust emission dominates the other 7 clumps at 3 mm. Three of the seven clumps are located in the Orion-KL region, three clumps are in CS1 (Mundy et al., 1986) and the last one is a narrow ridge connecting KL and CS1. The typical size and mass of the dust clumps were estimated to be about 0.01 pc and a few solar masses, respectively. These dust clumps are candidates for protostellar condensations in the dense gas disk around IRc2.

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