Abstract
view Abstract Citations (49) References (1) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Infrared mapping of the galactic plane. I - Low-resolution maps between 0 and 320 deg longitude Price, S. D. Abstract Sixty percent of the galactic plane was surveyed in broad spectral bands centered at 11 and 20 μm during the AFGL infrared sky survey experiments. Smaller areas were covered at 4 and 27 μm. A number of discrete, extended sources were observed, most of which are associated with H II regions. A diffuse infrared background emission was also observed at longitudes less than 90° from the galactic center. This emission peaks on the galactic plane with roughly constant intensity between 10° and 30° longitude and declines at greater longitudes. The 4-, 11-, and 20- μm peak intensities along the emission ridge are 1.4 × 10-10, 8 × 10-11, and 2 × 10-11 W cm-2 μm-1 sr-1, respectively. A constant 11- to 20-μm intensity ratio of 4 was measured along the galactic plane out to 65 longitude from the center. A smaller ratio of 2 to 2.5 was found in both the Cygnus X region and in the direction of the Sagittarius-Carina spiral arm. The 4-μm observations can be accounted for by the superposition of K and M giants along the line of sight. A significant fraction of the diffuse 11- and 20-μm emission is due to stars embedded in thick dust shells. Discrete, compact H II regions appear to contribute little to the diffuse background. Publication: The Astronomical Journal Pub Date: February 1981 DOI: 10.1086/112873 Bibcode: 1981AJ.....86..193P Keywords: Astronomical Maps; Emission Spectra; Galactic Radiation; Infrared Astronomy; Infrared Radiation; Spectral Bands; Background Radiation; Brightness Temperature; Diffuse Radiation; Giant Stars; Hydrogen Clouds; Late Stars; M Stars; Stellar Radiation; Astrophysics full text sources ADS | Related Materials (3) Part 2: 1982AJ.....87..131P Part 3: 1982AJ.....87.1288T Part 4: 1985AJ.....90.1812L
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
