The HMPOs of GLIMPSE: Multiwavelength Models of Massive Protostars.

Details The HMPOs of GLIMPSE: Multiwavelength Models of Massive Protostars. The HMPOs of GLIMPSE: Multiwavelength Models of Massive Protostars.

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.6317i&link_type=abstract

American Astronomical Society Meeting 207, #63.17; Bulletin of the American Astronomical Society, Vol. 37, p.1249

Astronomy and Astrophysics

Astronomy

Scientific paper

Massive stars dominate the evolution of galaxies and their interstellar matter, yet their formation is poorly understood. High-mass protostellar objects (HMPOs) are heavily embedded and short-lived, so extensive observational investigation has had to wait for technology to enable efficient infrared surveys.
We analyze a sample of HMPOs with multiwavelength imaging: NIR from the 2MASS survey, 3-8um from the Galactic Lecacy Infrared MidPlane Survey Extraordinaire (GLIMPSE), and 450 and 850um using SCUBA. Spherical models with fairly large radial density gradients (power-law indices >2) have previously been used to model submm radial intensity profiles and the submm part of the SED. 1-D models are inadequate at shorter wavelengths at which disk geometry and scattered light can have significant effects on the emergent radiation. We have recently used 3D models with clumpy envelopes and fairly flat average radial density profiles to model SEDs of embedded high-mass stars (Indebetouw et al ApJ in press). Here, we use our 3D clumpy models to fit both the SED and multiwavelength spatial intensity profiles.

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