CO observations of the dark clouds Heiles 2, L1333, L1778 and L129

Details CO observations of the dark clouds Heiles 2, L1333, L1778 and L129 CO observations of the dark clouds Heiles 2, L1333, L1778 and L129

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.194...15p&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 194, Jan. 1981, p. 15-38. Research supported by the Science Research Co

Astronomy and Astrophysics

Astronomy

14

Astronomical Spectroscopy, Carbon Monoxide, Interstellar Gas, Molecular Clouds, Astronomical Coordinates, Astronomical Maps, Cyano Compounds, Optical Thickness, Shock Wave Propagation

Scientific paper

(C-12)(O-16) and (C-13)(O-16) J = 1 approaching 0 lines of the dark clouds Heiles 2(TMC-1), L1333, L1778, and L129 are presented. A velocity discontinuity in H I maps of Heiles 2 is reflected in a corresponding CO temperature change; it is proposed that TMC-1 has recently emerged from the shock, and that evolutionary factors account for the apparently anomalous occurrence of cyanopolynes in this source. L1333 has two distinct velocity components extending over 0.1 square degrees; L1778 and L129 show simple spatial structures with a central core surrounded by a more diffuse envelope with no evidence of rotation of multiple velocity components.

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