Feedback reshapes the baryon distribution within haloes, in halo outskirts, and beyond

• Verfasst von: Ayromlou, Mohammadreza [VerfasserIn]
• Verfasst von: Nelson, Dylan [VerfasserIn]
• Verfasst von: Pillepich, Annalisa [VerfasserIn]
• Titel: Feedback reshapes the baryon distribution within haloes, in halo outskirts, and beyond
• Titelzusatz: the closure radius from dwarfs to massive clusters
• Verf.angabe: Mohammadreza Ayromlou, Dylan Nelson and Annalisa Pillepich
• E-Jahr: 2023
• Jahr: October 2023
• Umfang: 20 S.
• Illustrationen: Illustrationen
• Fussnoten: Online veröffentlicht am 8. Juli 2023 ; Gesehen am 14.12.2023
• Titel Quelle: Enthalten in: Royal Astronomical SocietyMonthly notices of the Royal Astronomical Society
• Ort Quelle: Oxford : Oxford Univ. Press, 1827
• Jahr Quelle: 2023
• Band/Heft Quelle: 524(2023), 4 vom: Okt., Seite 5391-5410
• ISSN Quelle: 1365-2966
• DOI: doi:10.1093/mnras/stad2046
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1859504027

Abstract

We explore three sets of cosmological hydrodynamical simulations, IllustrisTNG (TNG50, TNG100, and TNG300), EAGLE, and SIMBA, to investigate the physical processes impacting the distribution of baryons in and around haloes across an unprecedented mass range of 10 ^8 < M200c/M < 1015, from the halo centre out to scales as large as R200c. We demonstrate that baryonic feedback mechanisms significantly redistribute gas, lowering the baryon fractions inside haloes while simultaneously accumulating this material outside the virial radius. ...