Unveiling the impact of cosmic rays on the disc sizes and outflows from dwarf scales to galaxy groups

Bieri, Rebekka, Pakmor, Rüdiger, van de Voort, Freeke ORCID: https://orcid.org/0000-0002-6301-638X, Talbot, Rosie Y, Werhahn, Maria, Pfrommer, Christoph and Springel, Volker 2026. Unveiling the impact of cosmic rays on the disc sizes and outflows from dwarf scales to galaxy groups. Monthly Notices of the Royal Astronomical Society 547 (2) , stag216. 10.1093/mnras/stag216

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Abstract

Cosmic rays (CRs) are a non-thermal energy component in the interstellar and circumgalactic medium (CGM) that provide an additional feedback channel beyond thermal and kinetic feedback from stars and AGN. They influence galaxy evolution by altering gas properties, regulating star formation, and shaping galactic outflows. We investigate these effects using cosmological zoom-in simulations, which incorporate CR transport and feedback on top of the Auriga model.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Publisher:	Oxford University Press (OUP)
ISSN:	0035-8711
Date of First Compliant Deposit:	9 February 2026
Last Modified:	01 Apr 2026 14:30
URI:	https://orca.cardiff.ac.uk/id/eprint/184539

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