Non-spherical models for the spectral energy distribution of high-mass protostars

Details Non-spherical models for the spectral energy distribution of high-mass protostars Non-spherical models for the spectral energy distribution of high-mass protostars

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.577..401o&link_type=abstract

In: Proceedings of the dusty and molecular universe: a prelude to Herschel and ALMA, 27-29 October 2004, Paris, France. Ed. by A

Computer Science

Radiative Transfer, Stars: Formation

Scientific paper

We develop radiative tranfer calculations to obtain the Spectral Energy Distribution (SED) of high-mass protostars. Our calculations take into account non-spherical envelopes elongated either by rotation or by the natural elongation of the cloud. Since the mid-IR range of the spectrum is very sensitive to the degree of flattening and to the inclination of the cloud, we compare the results of our modelling with new narrowband mid-IR observations carried out at Gemini Observatory. Our preliminary results suggest that flattened envelopes can naturally explain the observed structure of some high-mass protostars without invoking large-scale circunmstellar disks.

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