Computer simulation reveals how “particle accelerators” in black holes produce cosmic rays – Jornal from USP

Computer simulation reveals how “particle accelerators” in black holes produce cosmic rays – Jornal from USP

Researchers now reconstruct the entire flux of radiation and neutrinos produced by very high-energy cosmic rays in active galaxies.

“In particular we are reproducing the flow observed in the active galaxy TXS 0506 + 056, also called Blazar”, reports the scientist. “This source galaxy became famous in 2018 with the discovery by the IceCube Observatory, located in Antarctica, and several gamma-ray observatories, of the simultaneous direct emission of neutrinos and gamma rays for the first time in an astrophysical source, which highlighted the presence of very high energy cosmic rays in relativistic jets “.

In addition to Professor Elisabete, the work saw the participation of IAG postdoctoral researchers Juan Carlo Rodriguez-Ramirez, Luis Kadowaki and Tania Medina-Torrejon, as well as Professor Grzegorz Kowal, of the School of Arts, Sciences and Humanities (EACH) of the USP. Also collaborating in the study were Yosuke Mizuno, of the Jiao Tong University of Shanghai, in China, of the Institut für Theoretische Physik, of the University of Goethe, in Germany, and Chandra Singh, of the University of Yunnan, in China.

More information: e-mail dalpino@iag.usp.br, with the teacher Elisabete de Gouveia Dal Pino