Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...239..276b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 239, no. 1-2, Nov. 1990, p. 276-286. Research supported by CICYT.
Astronomy and Astrophysics
Astronomy
109
H Ii Regions, Molecular Clouds, Molecular Spectra, Radio Jets (Astronomy), Stellar Spectra, Accretion Disks, Double Stars, Interstellar Matter, O Stars, Silicon Oxides, Stellar Winds
Scientific paper
Results are presented from high-resolution molecular observations of NGC 6334 I and NGC 1333, carried out with the IRAM 30-m radio telescope at Pico Veleta (Spain). It was found that NGC 6334 I has a bipolar outflow with terminal velocity of 70 km/sec, which is very young (about 2300 yrs old on kinematical timescale), has a size of 0.18 pc, a mass of 2.3 solar masses, and is centered on the source which excites the compact H II region NGC 6334 F. The core exhibits a velocity gradient that is interpreted as the high-density counterpart of the fast CO outflow. In NGC 1333, the extremely high velocity CO (discovered by Lizano et al., 1988) wings which arise in a neutral wind with terminal velocity of 160 km/sec were mapped. Data presented indicate that the CO bipolar outflows are driven by jetlike neutral winds at extremely high velocities.
Bachiller Rafael
Cernicharo Jose
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