Neutral hydrogen in galaxy clusters: impact of AGN feedback and implications for intensity mapping

dc.creatorVillaescusa-Navarro, Francisco
dc.creatorPlanelles, Susana
dc.creatorBorgani, Stefano
dc.creatorViel, Matteo
dc.creatorRasia, Elena
dc.creatorMurante, Giuseppe
dc.creatorDolag, Klaus
dc.creatorSteinborn, Lisa K.
dc.creatorBiffi, Veronica
dc.creatorBeck, Alexander M.
dc.creatorRagone Figueroa, Cinthia Judith
dc.date2016-03-11
dc.date.accessioned2023-08-31T00:07:59Z
dc.date.available2023-08-31T00:07:59Z
dc.identifierhttp://hdl.handle.net/11336/183148
dc.identifierVillaescusa-Navarro, Francisco; Planelles, Susana; Borgani, Stefano; Viel, Matteo; Rasia, Elena; et al.; Neutral hydrogen in galaxy clusters: impact of AGN feedback and implications for intensity mapping; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 456; 4; 11-3-2016; 3553-3570
dc.identifier0035-8711
dc.identifier1365-2966
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8543129
dc.descriptionBy means of zoom-in hydrodynamic simulations, we quantify the amount of neutral hydrogen (H i) hosted by groups and clusters of galaxies. Our simulations, which are based on an improved formulation of smoothed particle hydrodynamics, include radiative cooling, star formation, metal enrichment and supernova feedback, and can be split into two different groups, depending on whether feedback from active galactic nuclei (AGN) is turned on or off. Simulations are analysed to account for H I self-shielding and the presence of molecular hydrogen. We find that the mass in neutral hydrogen of dark matter haloes monotonically increases with the halo mass and can be well described by a power law of the form MH I(M, Z)∝ M3/4. Our results point out that AGN feedback reduces both the total halo mass and its H i mass, although it is more efficient in removing H i. We conclude that AGN feedback reduces the neutral hydrogen mass of a given halo by ~50 per cent, with a weak dependence on halo mass and redshift. The spatial distribution of neutral hydrogen within haloes is also affected by AGN feedback, whose effect is to decrease the fraction of H i that resides in the halo inner regions. By extrapolating our results to haloes not resolved in our simulations, we derive astrophysical implications from the measurements of ΩH I(Z): haloes with circular velocities larger than ~25 km s-1 are needed to host H i in order to reproduce observations. We find that only the model with AGN feedback is capable of reproducing the value of ΩHIbHI derived from available 21 cm intensity mapping observations.
dc.descriptionFil: Villaescusa-Navarro, Francisco. Istituto Nazionale di Astrofisica; Italia. Istituto Nazionale di Fisica Nucleare; Italia. Consiglio Nazionale delle Ricerche; Italia
dc.descriptionFil: Planelles, Susana. Universidad de Valencia; España. Università degli Studi di Trieste; Italia. Consiglio Nazionale delle Ricerche; Italia
dc.descriptionFil: Borgani, Stefano. Istituto Nazionale di Astrofisica; Italia. Istituto Nazionale di Fisica Nucleare; Italia. Università degli Studi di Trieste; Italia. Consiglio Nazionale delle Ricerche; Italia
dc.descriptionFil: Viel, Matteo. Istituto Nazionale di Astrofisica; Italia. Istituto Nazionale di Fisica Nucleare; Italia. Consiglio Nazionale delle Ricerche; Italia
dc.descriptionFil: Rasia, Elena. Istituto Nazionale di Astrofisica; Italia. University of Michigan; Estados Unidos. Consiglio Nazionale delle Ricerche; Italia
dc.descriptionFil: Murante, Giuseppe. Istituto Nazionale di Astrofisica; Italia. Consiglio Nazionale delle Ricerche; Italia
dc.descriptionFil: Dolag, Klaus. Universitäts-Sternwarte München; Alemania. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; Alemania
dc.descriptionFil: Steinborn, Lisa K.. Universitäts-Sternwarte München; Alemania
dc.descriptionFil: Biffi, Veronica. Istituto Nazionale di Astrofisica; Italia. Università degli Studi di Trieste; Italia. Consiglio Nazionale delle Ricerche; Italia
dc.descriptionFil: Beck, Alexander M.. Universitäts-Sternwarte München; Alemania
dc.descriptionFil: Ragone Figueroa, Cinthia Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherWiley Blackwell Publishing, Inc
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/456/4/3553/1032444
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stv2904
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1510.04277
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectCOSMOLOGY: MISCELLANEOUS
dc.subjectGALAXIES: CLUSTERS: GENERAL
dc.subjectMETHODS: NUMERICAL
dc.subjecthttps://purl.org/becyt/ford/1.3
dc.subjecthttps://purl.org/becyt/ford/1
dc.titleNeutral hydrogen in galaxy clusters: impact of AGN feedback and implications for intensity mapping
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


Este ítem pertenece a la siguiente institución