A Population of Cold Cores in the Galactic Plane
Open Access
- 20 February 1998
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 494 (2) , L199-L202
- https://doi.org/10.1086/311198
Abstract
Recent observations by the Midcourse Space Experiment (MSX) have revealed the presence of compact objects seen in absorption against bright mid-infrared emission from the Galactic plane. Examination of MSX and IRAS images of these objects reveal that they are dark from 7 to 100 μm. We find ~2000 clouds in a 1° × 180° scan along the Galactic equator. The data suggest these objects are dense (n > 105 cm−3), cold (T<20 K) cores, without accompanying envelopes.Keywords
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