A new set of model spectral energy distributions for young stellar objects

Abstract

In 2006, we made available a set of model spectral energy distributions (SEDs) for young stellar objects (YSOs) that has since been used by the community to model thousands of sources in nearby and more distant star forming regions in the Milky-Way and Magellanic clouds.We describe a new and much larger set of model SEDs that addresses many issues with the original models, such as the coverage of parameter space, the dependence on stellar evolutionary tracks, and is well suited to modelling long-wavelength observations such as those from Herschel. The new models were computed with HYPERION, a newMonte-Carlo radiative transfer code. We present the design of the new set of models and discuss improvements compared to the original models.