Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...413..221k&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 413, no. 1, p. 221-236.
Astronomy and Astrophysics
Astrophysics
18
Gas Dynamics, Interstellar Gas, Magnetohydrodynamic Turbulence, Molecular Clouds, Astronomical Spectroscopy, Autocorrelation, Velocity Distribution
Scientific paper
Turbulence seen in the subcondensation TMC-1C in Heiles' cloud 2 of the Taurus complex was observed using a 45 m telescope of Nobeyama Radio observatory to reveal the detailed velocity and spatial structures of the turbulence in molecular clouds and to understand the influence of turbulence on star formation. The autocorrelation functions (ACFs) of the velocity fields of the (C-13)O and C(O-18) lines have similar correlation lengths of about 0.03 pc in the 4 x 4 arcmin area, independent of their optical thickness. In the 8 x 8 arcmin area the ACF of the (C-13)O velocity field shows a correlation length of 0.07 pc. The correlation length defined by the ACF is found to continuously increase with the increasing size of the analyzed area.
Hasegawa Takuya
Hayashi Masahito
Kitamura Yoshimi
Sunada Kazuyoshi
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