1.

Record Nr.

UNINA9910616400303321

Autore

Müller Ana Laura

Titolo

Acceleration and Propagation of Cosmic Rays in High-Metallicity Astrophysical Environments / / by Ana Laura Müller

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2022

ISBN

9783031103063

9783031103056

Edizione

[1st ed. 2022.]

Descrizione fisica

1 online resource (141 pages)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5061

Disciplina

539.7223

Soggetti

Astrophysics

Astronomy - Observations

Plasma astrophysics

Particles (Nuclear physics)

Astronomy, Observations and Techniques

Astrophysical Plasma

Particle Physics

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Introduction -- Astrophysical Context -- Physics for High-Energy Astrophysics -- Superwinds of Starbursts: Large-Scale Processes -- Superwinds of Starbursts: Small-Scale Processes.

Sommario/riassunto

This thesis addresses the feasibility of the production of ultra-high-energy cosmic rays in starburst galaxies and active galactic nuclei. These astrophysical objects were theoretically proposed as candidate sources a long time ago. Nevertheless, the interest in them has been recently renewed due to the observational data collected by the Pierre Auger Observatory and the Telescope Array. In this work, a comprehensive review of the current status of the research on cosmic rays accelerators is provided, along with a summary of the principal concepts needed to connect these relativistic particles with electromagnetic and neutrino observations in the multi-messenger era. On one hand, the hypothesis of accelerating particles with energies



above 10¹⁸ eV in starburst superwinds is carefully revisited, taking into account the constraints imposed by the most recent electromagnetic observations. On the other hand, an alternative new model for the gamma emission of the nearby active galaxy NGC 1068 is presented. The implications of the results of these studies are discussed in terms of the contemporary observatories and prospects for future experiments are offered.