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Modeling the continuum emission from class 0 protostellar sources

Rengel, M., Froebrich, Dirk, Wolf, S., Eisloffel, J. (2004) Modeling the continuum emission from class 0 protostellar sources. Baltic Astronomy, 13 (3). pp. 449-453. ISSN 1392-0049. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:49581)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL
http://www.scopus.com/inward/record.url?eid=2-s2.0...

Abstract

Class 0 sources are objects representing the earliest phase of protostellar evolution. Since these objects are highly obscured by an extended dusty envelope, they can be observed mainly in the far-infrared to mm wavelength range. The analysis of their spectral energy distributions (SEDs) with wide wavelength coverage allows to determine their bolometric temperatures and luminosities. However, a more detailed physical interpretation of the internal physical structure of these objects requires radiative transfer modeling. Here we present the SED modeling results for a sample of nine Class 0 sources located in the Perseus and Orion molecular clouds. The SEDs have been simulated using a radiative transfer code based on the Monte Carlo method. We find that a spherically symmetrical model for the youngest Class 0 sources allows to reproduce the observed SEDs reasonably well. Using our models of these sources we derive their masses, density distributions, sizes, etc. The density structure of ? ? r-2 for the collapsing cores at young ages evolves to ? ? r-3/2 at later stages.

Item Type: Article
Uncontrolled keywords: Radiative transfer, Stars: circumstellar matter, Stars: formation
Subjects: Q Science > QB Astronomy
Q Science > QB Astronomy > QB460 Astrophysics
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Giles Tarver
Date Deposited: 17 Jul 2015 14:37 UTC
Last Modified: 16 Nov 2021 10:20 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49581 (The current URI for this page, for reference purposes)
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