Abstract
We present aperture synthesis maps of SO JK = 22 → 11 emission at 86.093938 GHz of the molecular cloud Orion B obtained from combined BIMA/NRAO 12 m data. The spatial resolution is 11″ × 7″ and the velocity resolution is 0.54 km s-1. The maps show fine structure in the dense molecular core, the main features being two relatively compact components aligned with the long, quiescent, NS-oriented ridge of previous maps. Most notable, however, is the ∼1-2 km s-1 blueshift of this line with respect to other high-density tracers of the main core. Implications of these data for the chemistry of SO in dense clouds are discussed.
Original language | English (US) |
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Pages (from-to) | 325-337 |
Number of pages | 13 |
Journal | Astrophysical Journal |
Volume | 389 |
Issue number | 1 |
DOIs | |
State | Published - Apr 10 1992 |
Keywords
- ISM: individual (NGC 2024)
- ISM: molecules
- ISM: structure
- Molecular processes
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science