DIRECT OBSERVATION OF A SHARP TRANSITION TO COHERENCE IN DENSE CORES

@article{Pineda2010DIRECTOO,
  title={DIRECT OBSERVATION OF A SHARP TRANSITION TO COHERENCE IN DENSE CORES},
  author={Jaime E. Pineda and Alyssa A. Goodman and H{\'e}ctor G. Arce and Paola Caselli and Jonathan B. Foster and Philip C. Myers and Erik W. Rosolowsky},
  journal={The Astrophysical Journal Letters},
  year={2010},
  volume={712},
  pages={L116 - L121}
}
We present NH3 observations of the B5 region in Perseus obtained with the Green Bank Telescope. The map covers a region large enough (∼11′×14′) that it contains the entire dense core observed in previous dust continuum surveys. The dense gas traced by NH3(1,1) covers a much larger area than the dust continuum features found in bolometer observations. The velocity dispersion in the central region of the core is small, presenting subsonic non-thermal motions which are independent of scale… 

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