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TeV gamma rays from 3C 279 - A possible probe of origin and intergalactic infrared radiation fields
Abstract
The γ-ray spectrum of 3C 279 during 1991 June exhibited a near perfect power law between 50 MeV and over 5 GeV with a differential spectral index of -(2.02 +/- 0.07). If extrapolated, the γ-ray spectrum of 3C 279 should be easily detectable with first generation air Cerenkov detectors operating above ~ 0.3 TeV, provided there is no intergalactic absorption. However, by using model-dependent lower and upper limits for the extragalactic infrared background radiation field, we predict a sharp cutoff of the 3C 279 spectrum between ~0.1 and ~1 TeV. The sensitivity of present air Cerenkov detectors is good enough to measure such a cutoff, which would provide the first opportunity to obtain a measurement of, or at least a severe constraint on the extragalactic background infrared radiation field.
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Cited by
Franceschini, A., Rodighiero, G., & Vaccari, M. (2008) · Astronomy & Astrophysics · doi:10.1051/0004-6361:200809691 · Cited by 911
Detection of TeV photons from the active galaxy Markarian 421
Punch, M., Akerlof, C. W., Cawley, M. F., Chantell, M., Fegan, D. J., Fennell, S., Gaidos, J. A., Hagan, J., Hillas, A. M., Jiang, Y., et al. (1992) · Nature · doi:10.1038/358477a0 · Cited by 772
Amelino-Camelia, G., & Piran, T. (2001) · Physical Review D · doi:10.1103/physrevd.64.036005 · Cited by 375
Stecker, F. W., Malkan, M. A., & Scully, S. T. (2006) · The Astrophysical Journal · doi:10.1086/506188 · Cited by 351
Self-citationCosmic physics: the high energy frontier
Stecker, F. W. (2003) · Journal of Physics G: Nuclear and Particle Physics · doi:10.1088/0954-3899/29/10/201 · Cited by 48
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Metadata
- Authors
- Stecker, F. W., de Jager, O. C., & Salamon, M. H.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1992-05
- Volume
- 390
- Pages
- L49
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2160991424
- Cited by
- 433
- References
- 0
- FWCI
- 8.66
- Type
- journal article
- Language
- en
- Open access
- closed
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- Stecker, F. W., de Jager, O. C., & Salamon, M. H. (1992). TeV gamma rays from 3C 279 - A possible probe of origin and intergalactic infrared radiation fields. The Astrophysical Journal. https://doi.org/10.1086/186369
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