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Gamma ray emitting globular clusters: Possible contribution from relativistic jets of intermediate mass black holes
Institution:1. College of Science, China Three Gorges University, Yichang 443002, China;2. Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China;3. Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China;1. Moscow Institute of Physics and Technology, Dolgoprudnyy, Moscow region 141700, Russia;3. Keldysh Institute of Applied Mathematics RAS, Miusskaya sq., 4, Moscow 125047, Russia;4. Department of Astronomy, Cornell University, Ithaca, NY 14853, United States;5. Department of Physics, Cornell University, Ithaca, NY 14853, United States;6. Department of Applied and Eng. Physics, Cornell University, Ithaca, NY 14853, United States;1. Departament de Física Aplicada, Universitat Politècnica de Catalunya, c/Esteve Terrades 5, 08860 Castelldefels, Spain;2. Institut d’Estudis Espacials de Catalunya, c/Gran Capità 2–4, Edif. Nexus 201, 08034 Barcelona, Spain;3. Department of Physics, Technion – Israel Institute of Technology, Haifa 32000, Israel;4. Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata–IALP-CONICET, Paseo del Bosque s/n, 1900 La Plata, Argentina;5. Institut de Ciències de l’Espai–CSIC, Campus UAB, Facultat de Ciències, Torre C5 – parell – 2a planta 08193 Bellaterra, Spain
Abstract:We developed a method that allows us to estimate the high energy gamma ray luminosity of intermediate mass black holes (IMBH) located in the central regions of globular clusters. Our calculations are based on the relation between the relativistic jet kinetic power and the luminosity of the gamma ray radiation that is produced by the jet itself. The power of a relativistic jet is determined via the Blandford–Znajek mechanism. Our calculations show that the contribution of the central IMBH in gamma ray luminosity is comparable with the contribution of the population of millisecond pulsars.
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