Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...161..150s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 161, no. 1, June 1986, p. 150-154. Research supported by the Max-Planck-Instit
Astronomy and Astrophysics
Astronomy
2
Far Infrared Radiation, Infrared Astronomy Satellite, Molecular Clouds, Protostars, Stellar Evolution, Ammonia, Autocorrelation, Kinetic Energy, Spectral Line Width
Scientific paper
NH3 (1,1 and 2,2) observations obtained using a 1024-channel autocorrelator and K-band maser amplifier at the 100-m Effelsberg radio telescope (angular resolution 40 arcsec at 1.3 cm; velocity resolution 0.16 km/s; rms error 0.1 K) are reported for six Taurus-region IRAS sources for which the 100-micron flux is greater than the 60-micron flux. The data are presented in maps and tables and compared with the IRAS FIR data in graphs. A strong correlation between the NH3 line intensity and the 100-micron flux and an anticorrelation between peak main-beam brightness temperature and Delta-V (where V is the line velocity) are observed and found to be consistent with the hypothesis of Henriksen and Turner (1984), that the velocity field in molecular clouds is controlled by star/cloud turbulence, with a conversion of small-scale angular momentum to larger-scale turbulence.
Baud B.
Mauersberger Rainer
Stenholm Lars G.
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