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Title:
Observational characteristics of dense cores with deeply embedded young protostars
Authors:
Stamatellos, D.; Whitworth, A. P.; Goodwin, S. P.
Affiliation:
AA(School of Physics and Astronomy, Cardiff University, 5 The Parade, Cardiff CF24 3YB, UK), AB(School of Physics and Astronomy, Cardiff University, 5 The Parade, Cardiff CF24 3YB, UK), AC(School of Physics and Astronomy, Cardiff University, 5 The Parade, Cardiff CF24 3YB, UK)
Publication:
Astronomische Nachrichten, Vol.326, Issue 10, p.882-885 (AN Homepage)
Publication Date:
12/2005
Origin:
AN
Keywords:
stars: formation, ISM: clouds, dust, extinction, methods: numerical, radiative transfer, hydrodynamics
DOI:
10.1002/asna.200510453
Bibliographic Code:
2005AN....326..882S

Abstract

Class 0 objects, which are thought to be the youngest protostars, are identified in terms of NIR or radio emission and/or the presence of molecular outflows. We present combined hydrodynamic and radiative transfer simulations of the collapse of a star-forming molecular core, which suggest two criteria for identifying dense cores with deeply embedded very young protostars that may not be observable in the NIR or radio with current telescopes. We find that cores with protostars are relatively warm (T >15 K) with their SEDs peaking at wavelengths <170\mu m, and they tend to appear circular.
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