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astro-ph2008★ 303 cited
CO Isotopologues in the Perseus Molecular Cloud Complex: the X-Factor and Regional Variations
Jaime E. Pineda, Paola Caselli, Alyssa A. Goodman
We use the COMPLETE data to derive new calibrations of the X-factor and the 13CO abundance within Perseus. We divide Perseus into six sub-regions. The standard X factor, X=N(H2)/W(…
astro-ph2004
Chemical evolution in the environment of intermediate mass young stellar objects: NGC7129--FIRS2 and LkH234
A. Fuente, J. R. Rizzo, P. Caselli +2
We have carried out a molecular survey of the Class 0 IM protostar NGC 7129 -- FIRS 2 (hereafter FIRS 2) and the Herbig Be star LkH 234 with the aim of studying the chemical evo…