Update:
Our recent multi-wavelength project to
study the young stellar populations in the Carina Nebula.
Here are infrared images of several star forming regions. Some of these were made from deep near-infrared (1.2, 1.6, and 2.2 micron) observations I have obtained at the Calar Alto 3.5 m Telescope. Others are wide-field images of star forming regions I produced from the data of the IRAS satellite.
The NGC 1333 star forming region
The young stellar cluster IC348
The Scorpius Centaurus OB Association