Altas Energías

*EXTRAORDINARIO: notar lugar, día y hora*. "Are Blazars sources of High energy neutrinos?

by Dr. Sarira Sahu (Instituto de Ciencias Nucleares, UNAM)

Thursday, 9 May 2019 from to (Mexico/General)
at ICN-UNAM ( Salon de seminarios F-209, 2o nivel edificio F )
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Avenida Universidad No. 3000, Col. UNAM-C.U. Distrito Federal, C.P. 04510, México
Description
On 22nd of September 2017, the IceCube neutrino observatory 
detected a track-like neutrino event with energy ~ 290 TeV
(IceCube-170922A). This neutrino event 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 range at that very moment. Extensive 
follow-up observations from radio to TeV energy bands 
revealed that the blazar TXS 0506+056 was active during 
this period and enhanced emission in all these energy bands 
were observed, notably the GeV emission is found to be at 
high state as observed by Fermi-LAT. Also for the first time 
very high energy (VHE) gamma-rays above 100 GeV were observed 
by MAGIC telescopes from the same object. In the context of 
the photohadronic model I shall analyze this blazar to 
explain the high energy gamma-ray and the neutrino spectra.
Material:
Support Email: alexis@nucleares.unam.mx