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The Diffuse Interstellar Bands
Abstract
The diffuse interstellar bands are absorption features observed in the spectra of stars seen through significant column densities of interstellar material. Of the 127 confirmed DIBs in the optical region between 0.4 and about 1.3 /Lm, only 2 have (tentatively) been identified with a specific carrier. Because DIB strengths increase roughly in proportion to color excess, they were originally suspected of being produced on or in the interstellar grains, but current evidence favors some species of free polyatomic molecules, either neutral or ionized. DIBs are conspicuously broader than the atomic interstellar lines, having widths at half-depth ranging from 0.8 to about 30 Å. These widths are presumably due to unresolved rotational structure, possibly compounded by lifetime broadening of the upper state. Recent proposals that C 60, some members of the PAH family, or polycarbon chains are responsible for the DIB spectrum are either not supported by observation or await better data.
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Citations
Cited by
Weingartner, J. C., & Draine, B. T. (2001) · The Astrophysical Journal · doi:10.1086/318651 · Cited by 2,599
The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
Majewski, S. R., Schiavon, R. P., Frinchaboy, P. M., Prieto, C. A., Barkhouser, R., Bizyaev, D., Blank, B., Brunner, S., Burton, A., Carrera, R., et al. (2017) · The Astronomical Journal · doi:10.3847/1538-3881/aa784d · Cited by 1,831
Ehrenfreund, P., & Charnley, S. B. (2000) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.38.1.427 · Cited by 1,043
Jonker, P. G., & Nelemans, G. (2004) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2004.08193.x · Cited by 321
Carbon molecules in space: from astrochemistry to astrobiology
Ehrenfreund, P., & Sephton, M. A. (2006) · Faraday Discussions · doi:10.1039/b517676j · Cited by 114
Metadata
- Authors
- Herbig, G. H.
- Venue
- Annual Review of Astronomy and Astrophysics
- Publisher
- Annual Reviews
- Published
- 1995-09
- Volume
- 33
- Issue
- 1
- Pages
- 19-73
- ISSN
- 0066-4146 (ISSN-L)
- 1545-4282
- OpenAlex
- W2101432910
- Cited by
- 754
- References
- 0
- FWCI
- 28.16
- Type
- journal article
- Language
- en
- Open access
- closed
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- Herbig, G. H. (1995). The Diffuse Interstellar Bands. Annual Review of Astronomy and Astrophysics. https://doi.org/10.1146/annurev.aa.33.090195.000315
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
