Noémie Globus

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I am a Chancellor's Postdoctoral Fellow at the University of California, Santa Cruz. ​I am part of the UCSC Astrobiology Initiative. I am currently a member of the Telescope Array Collaboration and a visiting scientist at RIKEN (ABBL) in Japan. I am also part of the Simons Collaboration on Extreme Electrodynamics of Compact Sources (SCEECS).

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I conduct interdisciplinary research on the role of cosmic radiation in the emergence of life, involving knowledge from different fields. While biologists have not yet reached a consensus on the definition of life,   homochirality - the specific molecular handedness of biomolecules -  is a phenomenon only produced by life. The goal of my research is to understand if spin-polarized cosmic radiation can act as a chiral evolutionary pressure. I am performing experiments to understand chiral selective light-biopolymers interactions and experiments with spin-polarized muons to test this idea.

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My other topics of interest are High Energy Astrophysics and Multimessenger Astrophysics. I study the formation of relativistic jets around spinning black holes, and build theoretical models to interpret the observations of M87 radio galaxy - from the region close to the black hole where the recent EHT observations are key to understand the physics at play in jet formation, to hundreds of light-years away from the galaxy's core, where the profile of the jet provides insight into the collimation mechanisms.

 

I also investigate the origin of ultra-high energy cosmic rays, UHECRs, the most energetic particles in the Universe. I developed codes to calculate the acceleration of cosmic ray nuclei at mildly relativistic shocks associated with relativistic jets, their propagation in Galactic and extragalactic magnetic fields to predict anisotropies, and the fluxes of secondary neutrinos and gamma-rays expected from various types of sources to make predictions for future neutrino facilities.

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