Astronomy and Astrophysics – Astronomy
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987natur.327..211h&link_type=abstract
Nature (ISSN 0028-0836), vol. 327, May 21, 1987, p. 211-214.
Astronomy and Astrophysics
Astronomy
37
Astronomical Spectroscopy, Cosmic Dust, Emission Spectra, Infrared Spectra, Milky Way Galaxy, Radio Spectra, Continuous Spectra, H Ii Regions, Infrared Astronomy Satellite, Supernova Remnants, Synchrotron Radiation
Scientific paper
The IRAS satellite produced a detailed picture with an angular resolution of ≡4 arc min of the infrared emission of the interstellar dust in the galactic plane. The authors point out the remarkably detailed correlation between the 60-μm band emission and most of the features in the 11 cm radio-continuum emission as measured by Reich et al. with a beam width of 4.3 arc min. This correlation provides a way of separating the thermal component of the radio continuum, identified by its associated infrared emission, from the synchrotron component. When the infrared and radio maps are compared, the known supernova remnants stand out boldly as radio sources which do not have the corresponding infrared emission. Candidates for hitherto undiscovered supernova remnants can be found by looking for additional radio sources lacking infrared emission.
Haslam G. T. C.
Osborne John L.
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