| First ISOCAM images of the Milky Way (1996) | |||||||||||||||
Abstract | |||||||||||||||
| ISOGAL is a 15 mu m ISOCAM survey of similar to 12 deg(2) in the Galactic Plane interior to \l\ = 45 degrees. In combination with IJK data from the near-infrared southern sky survey DENIS, the ISO images allow the first detailed study of stellar populations throughout the inner Galaxy. We present preliminary results from a test observation at l = -45 degrees with 6 '' pixels and completeness limit 8 mJy. Of the similar to 3000 sources deg(-2) detected, about half are KM giants, seen through extinction of up to A(v) similar to 30, while most of the remainder are probably dusty young stars. Although away from bright IRAS regions, the field displays spectacular emission features, and, unexpectedly, a number of regions which are optically thick at 15 mu m. The dark regions are presumably dense filaments with A(v) > 25. | |||||||||||||||
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