Ground-Based Mid-Infrared Imaging of Class 0 Protostars

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We report the first--ever ground-based detection of a Class 0 protostar at wavelengths shortward of the submillimeter bands. Using the JPL mid-infrared camera MIRLIN at the NASA Infrared Telescope Facility, we detected 7 known or candidate Class 0 sources out of 12 objects targeted. Each object was imaged at 24.5μ m as well as at some combination of 12.5, 17.9, and 20.8μ m. In addition, two apparant binary companions were discovered. Using the mid-infrared spectral slope as a diagnostic, we arrange the objects in order of relative age.

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