Radiative transfer in prestellar cores: A Monte Carlo approach

Stamatellos, Dimitrios and Whitworth, Anthony Peter ORCID: https://orcid.org/0000-0002-1178-5486 2003. Radiative transfer in prestellar cores: A Monte Carlo approach. Open Issues in Local Star Formation 299 , pp. 347-356. 10.1007/1-4020-2600-5_41

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Abstract

We use our Monte Carlo radiative transfer code to study non-embedded prestellar cores and cores that are embedded at the centre of a molecular cloud. Our study indicates that the temperature inside embedded cores is lower than in isolated non-embedded cores, and generally less than 12 K, even when the cores are surrounded by an ambient cloud of small visual extinction (Av ∼ 5). Our study shows that the best wavelength region to observe embedded cores is between 400 and 500 μm, where the core is quite distinct from the background. We also predict that very sensitive observations (∼1–3 MJy sr−1) at 170–200 μm can be used to estimate how deeply a core is embedded in its parent molecular cloud. Finally, we present preliminary results of asymmetric models of non-embedded cores

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Publisher:	Springer Netherlands
Last Modified:	27 Oct 2022 09:44
URI:	https://orca.cardiff.ac.uk/id/eprint/67561

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