Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...352..159m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 352, March 20, 1990, p. 159-166.
Astronomy and Astrophysics
Astronomy
56
Ammonia, Carbon Monoxide, Far Infrared Radiation, Nebulae, Stellar Envelopes, Abundance, Emission Spectra, Infrared Astronomy Satellite, Interstellar Magnetic Fields, Interstellar Matter, Stellar Evolution
Scientific paper
Interferometric observations of the (C-18)O and (C-12)O J = 1-0 transitions, and the NH3 (1, 1) and (2, 2) transitions toward the young far-IR source IRAS 16293-2422 are presented. The data reveal elongated gas structures which are aligned perpendicular to the axis of a bipolar outflow and to the local magnetic field direction. By combining the interferometric data with single-dish spectra of the (C-18)O and (C-17)O lines, a comprehensive model for the IRAS 16293-2422 region is developed. In this model, the compact (C-18)O line and 40 K dust emission arise from rotating material within which the central heat source is embedded. The NH3 emission is distributed in a ring with radius 3000 to 4000 AU surrounding the central disk. The dearth of ammonia emission from the (C-18)O emission region is attributed to an actual decrease in NH3 abundance.
Alwyn Wootten H.
Mundy Lee G.
Wilking Bruce A.
No associations
LandOfFree
The circumstellar structure of IRAS 16293-2422 - (C-18)O, NH3, and CO observations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The circumstellar structure of IRAS 16293-2422 - (C-18)O, NH3, and CO observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The circumstellar structure of IRAS 16293-2422 - (C-18)O, NH3, and CO observations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1886191