Infrared observations of the galactic center. I. Nature of the compact sources
Journal Article
·
· Astrophys. J.; (United States)
Photometry from 1.25 to 12 ..mu..m and spectrophotometry from 8 to 13 ..mu..m of the compact sources found in the galactic-center region are reported. In addition, revised 10- and new 20-..mu..m maps with 2.3'' reolution are given. The nature of the compact sources is discussed. Some are best identified as stars or star clusters; the brightest source at 2 ..mu..m is probably a supergiant, and the infrared source near the nonthermal radio source is probably a stellar cluster with density greater than 10/sup 6/ M sub solar pc/sup -3/. Other sources emit most of their luminosity at wavelengths of 10 ..mu..m and greater; this emission is probably from heated dust. One of the sources is observationally similar to extremely red OH/infrared stars. Other sources have luminosities and linear sizes similar to those of compact H II regions; emission from optically thin silicate dust is seen in these. 7 figures, 1 table.
- Research Organization:
- California Inst. of Tech., Pasadena
- OSTI ID:
- 6467253
- Journal Information:
- Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 219:1; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
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