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- W2882140771 abstract "Markarian 421 is a high-peaked BL Lac object and it has undergone many strong outbursts since its discovery as a TeV source in 1992. Markarian 421 has been stud- ied intensively and was observed by various Cherenkov tele- scope arrays ever since. The outbursts of April 2004 observed by the Whipple telescope and of February 2010 by the HESS telescopes are explained well in this work by using the photohadronic model. To account for the attenuation of these high- energy gamma-rays by the extragalactic background light (EBL), we use template EBL models. The intrinsic spectrum of each epoch is different even though the high-energy protons have almost the same spectral index. We observe that this difference in intrinsic spectra is due to the change in the spectral index of the low-energy tail of the synchrotron self Compton (SSC) photons during different epochs of flaring. Our results show that the contemporaneous multiwavelength observations, particularly in the low-energy tail region of the SSC emission of the source, are important in explaining the flaring phenomenon." @default.
- W2882140771 created "2018-07-19" @default.
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- W2882140771 date "2018-07-01" @default.
- W2882140771 modified "2023-10-02" @default.
- W2882140771 title "The origin of multi-TeV flares from the nearest blazar Markarian 421" @default.
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- W2882140771 doi "https://doi.org/10.1140/epjc/s10052-018-6038-z" @default.
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