This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. The author wants to thank T. Dame for kindly providing the CO data of the Cygnus region. The author is supported by an external ESA fellowship.
© European Southern Observatory (ESO) 2000
Online publication: August 17, 2000