Combined analysis of images and SEDs of Taurus Protostars

GRAMAJO, L.V., WHITNEY, B. A., GÓMEZ, M., ROBITAILLE, T. P.

ASTRONOMICAL JOURNAL

IOP PUBLISHING LTD

Lugar: Londres; Año: 2010 vol. 139 p. 2504 - 2524

0004-6256

We present an analysis of spectral energy distributions (SEDs) as well as near and mid-infrared images and Spitzer spectra of eight embedded class I/II objects in the Taurus-Auriga molecular cloud. The initial model for each source was chosen using the grid of young stellar objects and SED fitting tool of Robitaille et al. (2006).  Then the models were refined using the radiative transfer code of  Whitney et al. (2003b) to fit both the spectra and the infrared images of these objects. In general our models agree with previous published analyses. However, our combined models provide more reliable determinations of the physical and geometrical parameters since they are derived from SEDs (and Spitzer spectra) covering the complete spectral range, and high resolution near-infrared and Spitzer IRAC images that better constrain the different components (central source, disk, envelope) of the young stellar objects. Our analysis suggests that the standard rotating collapsing protostar model with disks and bipolar cavities works well for the analyzed sample of objects in the Taurus molecular cloud.