Dr. Sarira Sahu (ICN-UNAM). May 27, 2019. 13 h. Summary: "Blazars are Active Galactic Nuclei (AGN) viewed along the line of sight. It has been observed that multi-TeV emission from these objects are common phenomena, however, the mechanism is not yet well understood. Also the presence of extragalactic background light (EBL) attenuates the very high energy (VHE) gamma-rays coming to Earth. In this talk I shall review different emission mechanisms in blazars and discuss about the photohadronic process to explain the multi-TeV emission observed from many high energy blazars. On 22nd of September 2017, the IceCube neutrino observatory detected a neutrino event with energy ~ 290 TeV (IceCube- 170922A), which is spatially and temporally associated with TXS 0506+056, a blazar at a redshift of z = 0.3365 which was in a flaring state in the gamma-ray energy at that time. I shall discuss this result in the context of photohadronic model."
Fusión nuclear,Energía nuclear,Fuentes de energía alternativas,Física nuclear,
Dr. Sarira Sahu (ICN-UNAM). May 27, 2019. 13 h. Summary: "Blazars are Active Galactic Nuclei (AGN) viewed along the line of sight. It has been observed that multi-TeV emission from these objects are common phenomena, however, the mechanism is not yet well understood. Also the presence of extragalactic background light (EBL) attenuates the very high energy (VHE) gamma-rays coming to Earth. In this talk I shall review different emission mechanisms in blazars and discuss about the photohadronic process to explain the multi-TeV emission observed from many high energy blazars. On 22nd of September 2017, the IceCube neutrino observatory detected a neutrino event with energy ~ 290 TeV (IceCube- 170922A), which is spatially and temporally associated with TXS 0506+056, a blazar at a redshift of z = 0.3365 which was in a flaring state in the gamma-ray energy at that time. I shall discuss this result in the context of photohadronic model."
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