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- W2083127557 abstract "The broad-line region (BLR) of flat-spectrum radio quasars (FSRQs) could have a flat geometrical structure to allow GeV gamma-ray photons escape, to produce the observed gamma-ray flares with short timescales. In this paper, we collect the quasi-simultaneous spectral energy distributions (SEDs) of the FSRQ 3C 454.3 obtained by the multi-wavelength campaigns spanning from 2007 July to 2011 January, and use a model with the flat structure BLR, the accretion disc and the dust torus to explain the SEDs of gamma-ray outbursts. We obtain the following results: (i) The jet is almost in equipartition between magnetic and particle energy densities during the outbursts; (ii) When the emitting region locates inside the cavity of the BLR, the covering factor $f_{rm BLR}$ of the BLR is very small; as the emitting region goes into the BLR structure, $f_{rm BLR}$ increases. (iii) The aperture angle $alpha$ describing the BLR structure is about $45^{circ}$; (iv) The central black hole (BH) mass is about $5times 10^{8}$,$M_{odot}$ rather than $4.4times 10^{9}$,$M_{odot}$." @default.
- W2083127557 created "2016-06-24" @default.
- W2083127557 creator A5000168358 @default.
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- W2083127557 date "2014-10-01" @default.
- W2083127557 modified "2023-10-17" @default.
- W2083127557 title "Modeling the spectral energy distribution of 3C 454.3 in a “flat” broad-line region scenario" @default.
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- W2083127557 doi "https://doi.org/10.1093/pasj/psu067" @default.
- W2083127557 hasPublicationYear "2014" @default.
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