NH3 observations of the HH1-HH2 region

Details NH3 observations of the HH1-HH2 region NH3 observations of the HH1-HH2 region

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...176l..27m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 176, no. 2, April 1987, p. L27-L30.

Astronomy and Astrophysics

Astrophysics

17

Ammonia, Interstellar Matter, Molecular Clouds, Star Formation, Astronomical Maps, Spatial Distribution, Stellar Winds

Scientific paper

The authors present observations of the (1,1) and (2,2) ammonia inversion lines towards the HH 1-2 region. They observe several clumps at radial velocities between 8.3 and 10.3 km s-1. Two of these clumps are close to the excitation source of the HH 1-2 objects. Their low kinetic temperatures (≤11 and 14K respectively) and the highly collimated outflow suggest that these condensations do not play an important role in the initial focussing of the stellar wind. This may occur at smaller size scales. The spatial distribution of ammonia suggests that the stellar wind has opened a cavity in the molecular cloud and compressed the material close to the cavity walls.

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