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Infrared Observations of the Galactic Center
Abstract
Infrared radiation from the nucleus of the Galaxy has been detected at effective wavelengths of 1.65, 2.2, and 3.4 ~ with angular resolutions from O~O8 to 1 ~8. The structure consists of: (1) a dominant source 5' in diameter; (2) a pointlike source centered on the dominant source; (3) an extended background; and (4) additional discrete extended sources. Contour maps of the 2.2-jL brightness distribution of the galactic center region are given for resolutions of 1 ~8, O~8, and O~25. A comparison of the infrared and radio observations shows that the dominant infrared source and the radio source Sagittarius A have the same coordinates and similar sizes. An analysis of the observed infrared radiation predicts about 25 mag of visual absorption between the Sun and the galactic center if the source of infrared radiation is stellar. A comparison is also made be- tween the infrared radiation from the galactic center and that from the nucleus of M31 which shows agree- ment in both the apparent structure and infrared luminosity of the two nuclei
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Citations
Cited by
The Galaxy in Context: Structural, Kinematic, and Integrated Properties
Bland-Hawthorn, J., & Gerhard, O. (2016) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081915-023441 · Cited by 1,656
The Galactic Center massive black hole and nuclear star cluster
Genzel, R., Eisenhauer, F., & Gillessen, S. (2010) · Reviews of Modern Physics · doi:10.1103/revmodphys.82.3121 · Cited by 1,236
Possible power source of Seyfert galaxies and QSOs
Hills, J. G. (1975) · Nature · doi:10.1038/254295a0 · Cited by 759
Launhardt, R., Zylka, R., & Mezger, P. G. (2002) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20020017 · Cited by 477
Genzel, R., Hollenbach, D., & Townes, C. H. (1994) · Reports on Progress in Physics · doi:10.1088/0034-4885/57/5/001 · Cited by 200
Metadata
- Authors
- Becklin, E. E., & Neugebauer, G.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1968-01
- Volume
- 151
- Pages
- 145
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W3016556098
- Cited by
- 309
- References
- 0
- FWCI
- 9.38
- Type
- journal article
- Language
- en
- Open access
- closed
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