The Nine Lives of Cosmic Rays in Galaxies

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The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

Cosmic-ray propagation with DRAGON2: I. numerical solver and astrophysical ingredients (2016, methodology): “In the wake of the plethora of novel experimental achievements described above, a parallel effort on the CR-transport modelling in the Galaxy is needed [25].”
Photodissociation and photoionisation of atoms and molecules of astrophysical interest (2017, background): “The value of ζH2 is uncertain due to the unknown origin and flux of cosmic rays and its energy spectrum, as well as the attenuation due to matter and magnetic fields (Dalgarno 2006; Grenier et al. 2015).”
Cool outflows in galaxies and their implications (2020, background): “In star-forming galaxies like the Milky Way, first-order Fermi shock accelerated particles in supernova remnants are the dominant source of cosmic rays (CRs; e.g., Grenier et al. 2015; Bykov et al. 2018).”
DEVELOPMENT OF THE MODEL OF GALACTIC INTERSTELLAR EMISSION FOR STANDARD POINT-SOURCE ANALYSIS OF FERMI LARGE AREA TELESCOPE DATA (2016, methodology): “…the measured emissivity spectrum compares well, within ∼10%, with previous measurements obtained with the same TS in specific regions of the local ISM where there is minimal confusion along the lines of sight and where higherresolution ISM data were used (see Figure 4 of Grenier et al. 2015).”