Bipolar outflows in dark clouds

Journal Article · Thu Nov 15 04:00:00 EST 1984 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/162635· OSTI ID:6055398

Goldsmith, P F; Snell, R L; Hemeon-Heyer, M; Langer, W D

We have studied four dark clouds thought to contain bipolar molecular outflows by mapping the J = 1-0 transition of /sup 12/CO and observing the J = 1-0 transition of /sup 13/CO at selected positions. The clouds B335 and L723 each contain an outflow of gas which is distinctly bipolar, well collimated, and centered on low-luminosity far-infrared objects recently detected in these regions. Observations of L1455 suggest that there are two individual well-collimated molecular outflows, each with its own central source and whose centers are separated by 6.5. We attribute the high-velocity molecular material to the acceleration of the ambient moleular gas by stellar winds from the embedded objects. Observations toward L1529 do not reveal the presence of any high-velocity molecular gas.

• Research Organization: Five College Radio Astronomy Observatory, University of Massachusetts, Amherst
• OSTI ID: 6055398
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 286:2; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COSMIC GASES
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
INTERSTELLAR GRAINS
LUMINOSITY
MAPS
MORPHOLOGY
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PHYSICAL PROPERTIES
PLASMA ACCELERATION
SPECTRA
STELLAR ACTIVITY
STELLAR WINDS