Mean Emission Spectrum within the Rho Oph field.
The solid line is the spectrum derived from data averaging, the dashed line is that resulting from the correlation analysis.
These ISOCAM observations are discussed in the letter "Mid-Infrared imaging spectroscopy in the Ophiuchus", Boulanger, F. et al, that was published in the
ISO dedicated issue of Astronomy and Astrophysics
Other ISOCAM observations of Rho Ophiuchi have been the subject of both another Astronomy and Astrophysics Letter;
"ISOCAM mapping of the rho Oph main cloud" Abergel, A. et al. and a press release from the ISOCAM consortium; "The Earth's Closest Star Nursery"