Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...214l.115l&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 214, June 15, 1977, p. L115-L118. NASA-supported research.
Astronomy and Astrophysics
Astronomy
45
Far Infrared Radiation, Galactic Radiation, Infrared Astronomy, Milky Way Galaxy, H Ii Regions, Luminous Intensity, Star Distribution
Scientific paper
Results are reported for balloon-borne scans of the Galactic plane between longitudes of 348 and 32.5 deg, which were made in two broad spectral bands from 60 to 300 microns and from 150 to 300 microns. These results indicate that there are many bright H II regions embedded in a diffuse underlying band of emission in the examined longitude range, that the color temperatures range from 30 to 90 K, and that the width of the plane is at least 2 deg of arc in both spectral bands. A lower-limit IR luminosity of the order of 1 billion suns is computed for both the bright complex of sources at the nucleus and the underlying diffuse emission out to about + or -15 deg of arc from the nucleus. The strong relationship between far-IR emission and radio continuum expected for discrete sources is illustrated, and the results are compared with those of previous studies. It is concluded that the total far-IR luminosity of the central part of the Galaxy is understandable solely in terms of known distributions of stars and dust.
Kurtz R. F.
Low Frank J.
Nishimura Takahiro
Poteet W. M.
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