A far-infrared map of the Ophiuchus dark cloud region

Details A far-infrared map of the Ophiuchus dark cloud region A far-infrared map of the Ophiuchus dark cloud region

Jun 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...206l.165f&link_type=abstract

Astrophysical Journal, vol. 206, June 15, 1976, pt. 2, p. L165-L169.

Astronomy and Astrophysics

Astrophysics

68

Astronomical Maps, B Stars, Early Stars, Far Infrared Radiation, Infrared Stars, Balloon-Borne Instruments, Cosmic Dust, Interstellar Matter, Spaceborne Telescopes

Scientific paper

An extensive area of the Ophiuchus dark cloud has been mapped at far-infrared (40-50 microns) wavelengths with high angular resolution (1 arcmin) using a 102-cm balloon-borne telescope. Three sources were detected and resolved. Two of the sources were identified with strong 2-micron sources that were also associated with radio continuum emission. The far-infrared flux is consistent with radiation from dust heated by an early B star. Previous 2-micron observations have indicated the presence of a large number of early B stars embedded in the dark cloud; the far-infrared observations indicate, however, that although some early B stars are in the dark cloud, most of the 2-micron sources are either behind the cloud or are stars not on the main sequence.

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