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http://hdl.handle.net/20.500.12386/31456
Titolo: | Star formation rate in simulated clusters | Autori: | RASIA, ELENA Bassini, L. Valentini, M. BIFFI, VERONICA BORGANI, STEFANO Dolag, K. GRANATO, Gian Luigi MURANTE, Giuseppe RAGAGNIN, ANTONIO Ragone-Figueroa, C. TAFFONI, Giuliano TORNATORE, Luca |
Data pubblicazione: | 2020 | Rivista: | MEMORIE DELLA SOCIETA ASTRONOMICA ITALIANA | Numero: | 91 | Da pagina:: | 332 | Abstract: | The star formation rate (SFR) of simulated galaxy clusters is compared to recent observational studies at z=0 and z∼2. In particular, we analyze a set of zoom-in cosmological hydrodynamical simulations centered on twelve clusters and carried out with the GADGET-3 TreePM/SPH code. We find that simulated central galaxies produce an excess of stars at z=0, however at z∼2 simulations under-predict the normalization of the relation SFR-stellar mass of star forming galaxies by a factor of about 3 and are unable to reproduce the observed starburst population. We conclude that the adopted sub-grid model for star formation (Springel & Hernquist 2003), introduced to reproduce the self-regulated evolution of quiescent galaxies, is not suitable to describe violent events like high-redshift starbursts, independently of the choice of the parameters for the star formation and active-galactic-nuclei models. A more extensive analysis is present in Bassini et al. (2020). | URI: | http://hdl.handle.net/20.500.12386/31456 | URL: | http://sait.oat.ts.astro.it/MSAIt9103-0420/index.html | ISSN: | 0037-8720 | Bibcode ADS: | 2020MmSAI..91..332R | Fulltext: | open |
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