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Evidence for Grain Growth in Molecular Clouds: A Bayesian Examination of the Extinction Law in Perseus
Jonathan B. Foster, Kaisey S. Mandel, Jaime E. Pineda +3
We investigate the shape of the extinction law in two 1-degree square fields of the Perseus Molecular Cloud complex. We combine deep red-optical (r, i, and z-band) observations obt…
Chemistry in Infrared Dark Cloud Clumps: a Molecular Line Survey at 3 mm
Patricio Sanhueza, James M. Jackson, Jonathan B. Foster +3
We have observed 37 Infrared Dark Clouds (IRDCs), containing a total of 159 clumps, in high-density molecular tracers at 3 mm using the 22-meter ATNF Mopra Telescope located in Aus…
Distances to Dark Clouds: Comparing Extinction Distances to Maser Parallax Distances
Jonathan B. Foster, Joseph J. Stead, Robert A. Benjamin +2
We test two different methods of using near-infrared extinction to estimate distances to dark clouds in the first quadrant of the Galaxy using large near infrared (2MASS and UKIDSS…