%0 Generic %1 granato2014early %A Granato, Gian Luigi %A Ragone-Figueroa, Cinthia %A Dominguez-Tenreiro, Rosa %A Obreja, Aura %A Borgani, Stefano %A De Lucia, Gabriella %A Murante, Giuseppe %D 2014 %K clusters formation galaxy radiative transfer %T The early phases of galaxy clusters formation in IR: coupling hydrodynamical simulations with GRASIL3D %U http://arxiv.org/abs/1412.6105 %X We compute and study the infrared and sub-mm properties of high redshift (z>1) simulated clusters and proto-clusters, by coupling the results of a large set of hydro-dynamical zoom-in simulations including active galactic nuclei (AGN) feedback (Ragone-Figueroa et al. 2013), with the recently developed radiative transfer code GRASIL3D (Dominguez-Tenreiro et al. 2014), which accounts for the effect of dust reprocessing in an arbitrary geometry, and we customized for the present purpose. While this field is in its infancy from the observational point of view, a rapid development is expected in the near future, thanks to observations performed in the far IR and sub-mm bands. Notably, we find that in this spectral regime our prediction are little affected by the assumption required by this post-processing, and the emission is mostly powered by star formation rather than accretion onto super massive black hole (SMBH). The comparison with the little observational information available so far, highlights that the simulated cluster regions never attain the impressive star formation rates suggested by these observations. This problem becomes more intriguing taking into account that the brightest cluster galaxies (BCGs) in the same simulations turns out to be too massive (Ragone-Figueroa et al. 2013). It seems that the interplay between the feedback schemes and the starformation model should be revised, possibly incorporating a positive feedback mode.

@misc{granato2014early, abstract = {We compute and study the infrared and sub-mm properties of high redshift (z>1) simulated clusters and proto-clusters, by coupling the results of a large set of hydro-dynamical zoom-in simulations including active galactic nuclei (AGN) feedback (Ragone-Figueroa et al. 2013), with the recently developed radiative transfer code GRASIL3D (Dominguez-Tenreiro et al. 2014), which accounts for the effect of dust reprocessing in an arbitrary geometry, and we customized for the present purpose. While this field is in its infancy from the observational point of view, a rapid development is expected in the near future, thanks to observations performed in the far IR and sub-mm bands. Notably, we find that in this spectral regime our prediction are little affected by the assumption required by this post-processing, and the emission is mostly powered by star formation rather than accretion onto super massive black hole (SMBH). The comparison with the little observational information available so far, highlights that the simulated cluster regions never attain the impressive star formation rates suggested by these observations. This problem becomes more intriguing taking into account that the brightest cluster galaxies (BCGs) in the same simulations turns out to be too massive (Ragone-Figueroa et al. 2013). It seems that the interplay between the feedback schemes and the starformation model should be revised, possibly incorporating a positive feedback mode.}, added-at = {2014-12-22T07:13:34.000+0100}, author = {Granato, Gian Luigi and Ragone-Figueroa, Cinthia and Dominguez-Tenreiro, Rosa and Obreja, Aura and Borgani, Stefano and De Lucia, Gabriella and Murante, Giuseppe}, biburl = {https://www.bibsonomy.org/bibtex/283440d8067f1d07f7d8b566f927c6cf7/miki}, description = {[1412.6105] The early phases of galaxy clusters formation in IR: coupling hydrodynamical simulations with GRASIL3D}, interhash = {65ec9b4933a6b938b81c024d2cebde1f}, intrahash = {83440d8067f1d07f7d8b566f927c6cf7}, keywords = {clusters formation galaxy radiative transfer}, note = {cite arxiv:1412.6105Comment: 12 pages, 10 figures, submitted to MNRAS}, timestamp = {2014-12-22T07:13:34.000+0100}, title = {The early phases of galaxy clusters formation in IR: coupling hydrodynamical simulations with GRASIL3D}, url = {http://arxiv.org/abs/1412.6105}, year = 2014 }