Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725812d&link_type=abstract
American Astronomical Society, AAS Meeting #217, #258.12; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
We present a physical outflow model which minimizes free parameters while maintaining the ability match a wide variety of millimeter and submillimeter observations of molecular line emission observed in protostellar sources. We fit this model to 12CO (J=1-0) and 13CO (J=1-0) observations of L1228 and L1527 in order to investigate the physical properties of the outflows that best match the observations. The model includes radiative transfer calculations which allow us to investigate relative abundances of molecular species and their excitation conditions. Certain simplifying assumptions are made in order to reduce the free parameter space. The impact of these decisions are discussed and evaluated in the context of these well-studied sources. We explore the use of this model in obtaining parameters such as the momentum and kinetic energy, which are often calculated from observations.
Arce Hector G.
de Vries Christopher H.
Isella Andrea
Terebey Susan
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