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arXiv · 1106.4011

Imaging of the CCS 22.3 GHz emission in the Taurus Molecular Cloud complex

Nirupam Roy·Abhirup Datta·Emmanuel Momjian·Anuj P. Sarma
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Abstract

Thioxoethenylidene (CCS) is an abundant interstellar molecule, and a good tracer of high density and evolutionary stage of dense molecular clouds. It is also a suitable candidate for Zeeman splitting observations for its high splitting factor and narrow thermal linewidths. We report here EVLA 22.3 GHz observations of three dense molecular cores TMC-1, TMC-1C and L1521B in the Taurus Molecular Cloud complex to image the CCS 2_1-1_0 transition. For all three sources, the clumpy CCS emission is most likely tracing the starless cores. However, these compact structures account for only ~ 1-13% of the integrated emission detected in single-dish observations, indicating the presence of significant large scale diffuse emission in favorable conditions for producing CCS.

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Nirupam Roy, Abhirup Datta, Emmanuel Momjian, Anuj P. Sarma. 2011-06-20. Imaging of the CCS 22.3 GHz emission in the Taurus Molecular Cloud complex. https://doi.org/10.1088/2041-8205%2F739%2F1%2Fl4

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