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| HAL : hal-00728760, version 1 |
| Code Bibliographique ADS : 2012JPhCS.355a2035N |
| DOI : 10.1088/1742-6596/355/1/012035 |
| Fiche détaillée |  Récupérer au format |
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| International Workshop on Beamed and Unbeamed Gamma-Rays from Galaxies, Muonio : Finlande (2011) |
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| Unbeamed γ-rays from low luminosity AGNs |
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| A. NiedźwieckiF. XieV. Beckmann1 |
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| (03/2012) |
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| Proton-proton collisions in two-temperature accretion flows may lead to substantial γ-ray emission through neutral pion production and decay. We present preliminary results of our study of such a hadronic γ-ray emission. We find that radiatively inefficient flows around rapidly rotating black holes can produce the MeV/GeV luminosities up to ~ 1044 erg s-1. The hot-flow model predictions for the hadronic and the Comptonization components can put interesting constraints on the properties of the source of high-energy radiation in AGNs. As an example, we compare our model with X/γ-ray observations of Centaurus A and we find that the model with a maximally rotating black hole strongly overpredicts the γ-ray flux. |
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| 1 : | APC - AstroParticule et Cosmologie |
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| APC - AHE |
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| Domaine | : | Physique/Astrophysique/Cosmologie et astrophysique extra-galactique Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique |
| hal-00728760, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00728760 | |
| oai:hal.archives-ouvertes.fr:hal-00728760 | |
| Contributeur : Volker Beckmann | |
| Soumis le : Jeudi 6 Septembre 2012, 15:34:53 | |
| Dernière modification le : Mardi 11 Septembre 2012, 23:13:48 | |
