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  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28742
Title: The mass of dusty clumps with temperature and density structure
Authors: CESARONI, Riccardo 
Issue Date: 2019
Journal: ASTRONOMY & ASTROPHYSICS 
Number: 631
First Page: A65
Abstract: We consider a dusty clump in the two cases of spherical and cylindrical symmetry to investigate the effect of temperature and density gradients on the observed flux density. Conversely, we evaluate how the presence of such gradients affects the calculation of the clump mass from the observed flux. We provide the reader with approximate expressions relating flux density and mass in the optically thick and thin limits, in the Rayleigh-Jeans regime, and discuss the reliability of these expressions by comparing them to the outcome of a numerical code. Finally, we present an application of our calculations to three examples taken from the literature, which shows how the correction introduced after taking into account temperature and density gradients may affect our conclusions on the stability of the clumps.
URI: http://hdl.handle.net/20.500.12386/28742
URL: https://www.aanda.org/articles/aa/abs/2019/11/aa36334-19/aa36334-19.html
ISSN: 0004-6361
DOI: 10.1051/0004-6361/201936334
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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