TeV Gamma-Ray Absorption and the Intergalactic Infrared Background
| dc.creator | Stecker, F. W. | |
| dc.date | 2000-10-01 | |
| dc.date | 2001-01-12 | |
| dc.date.accessioned | 2026-07-07T01:55:44Z | |
| dc.date.available | 2026-07-07T01:55:44Z | |
| dc.description | In this paper, I will take a synoptic approach to determining the intergalactic infrared radiation field (IIRF). This approach draws on both the multi-TeV gamma-ray observations and the infrared background observations and relates them via the semi-empirical modelling method of Malkan and Stecker. I discuss the evidence for an intergalactic infrared background obtained by an analysis of the HEGRA observations of the high energy gamma-ray spectrum of Mrk 501 and from constraints from Mrk 421 deduced from the Whipple air Cherenkov telescope results. I will show that this evidence is in accord with the predictions made by Malkan and Stecker for the intergalactic infrared spectral energy distribution produced by galaxies. The Malkan-Stecker predictions are also in excellent agreement with mid- and far infrared galaxy counts. However, there may be potential problems relating these predictions with the results of the analysis of COBE-DIRBE far infrared data. The gamma-ray and COBE-DIRBE observations may also need to be reconciled. I will discuss possible ways to resolve this situation including a partial nullification of the $γ$-ray absorption process which can hypothetically occur if Lorentz invariance is broken. | |
| dc.description | 15 latex pages with 5 eps figures and newpasp style file included, Invited Paper for Proc. IAU Symp. 204 "The Extragalactic Background and its Cosmological Implications", M. Harwit and M.G. Hauser, eds., Corrected FIG. 1 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0010015 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0010015 | |
| dc.identifier | IAU Symp. 204 (2001) 135 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/1760 | |
| dc.subject | Astrophysics | |
| dc.title | TeV Gamma-Ray Absorption and the Intergalactic Infrared Background | |
| dc.type | text |