The 'ultracompact hot core' of G34.3+0.15 - Arcsecond resolution ammonia observations

Details The 'ultracompact hot core' of G34.3+0.15 - Arcsecond resolution ammonia observations The 'ultracompact hot core' of G34.3+0.15 - Arcsecond resolution ammonia observations

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...213..148h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 213, no. 1-2, April 1989, p. 148-154.

Astronomy and Astrophysics

Astrophysics

48

Ammonia, H Ii Regions, Interstellar Matter, Molecular Clouds, Absorption Spectra, Abundance, Brightness Temperature, Emission Spectra, Very Large Array (Vla)

Scientific paper

The paper presents observations of the (J, K)=(3, 3) inversion line of NH3 made with 1.4 x 1.2 arcsec resolution toward the compact molecular core associated with the highly luminous H II region G34.3 + 0.15. A hot optically thick slab of gas is revealed, whose densest regions appear to lie on the eastern rim of the cometary H II region, and may form the remnant of the protostellar cloud. This ultracompact clump has a peak optical depth of about 30 in the NH34(3, 3) main hyperfine component.

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