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Galactic evolution in clusters

Grant number: 15/13141-7
Support type:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): November 01, 2015
Effective date (End): December 31, 2018
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
Principal researcher:Gastão Cesar Bierrenbach Lima Neto
Grantee:Rafael Ruggiero
Home Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:12/00800-4 - The 3-D universe: astrophysics with large galaxy surveys, AP.TEM
Associated scholarship(s):16/19586-3 - Galactic evolution in clusters with zoom cosmological simulations, BE.EP.DD


The aim of this PhD work is to analyze quantitatively the environmental effects of clusters in galaxies, emphasizing the ram-pressure acting on the cold gas in galaxies as they move in clusters and the feedback from active galactic nuclei. These effects have an impact on galaxy stellar evolution, contribute to the metal enrichment of the intracluster medium and keep intracluster gas hot in the cluster core. A theoretical and numerical approach will be taken, using hydrodynamic N-body simulations where physical processes that affect the gas are also taken into account such as, for example, star formation, supernova explosions and chemical enrichment. From the observational point of view, we will analyse the spectral properties of cluster galaxies using information from wide and narrow bands in the optical/IR. For this, it will be used the SDSS survey data and J-PAS (as soon as it is available). (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RUGGIERO, RAFAEL; TEYSSIER, ROMAIN; LIMA NETO, GASTAO B.; PERRET, VALENTIN. Free-floating molecular clumps and gas mixing: hydrodynamic aftermaths of the intracluster-interstellar medium interaction. Monthly Notices of the Royal Astronomical Society, v. 480, n. 2, p. 2191-2199, OCT 2018. Web of Science Citations: 0.
RUGGIERO, RAFAEL; LIMA NETO, GASTAO B. The fate of the gaseous discs of galaxies that fall into clusters. Monthly Notices of the Royal Astronomical Society, v. 468, n. 4, p. 4107-4115, JUL 2017. Web of Science Citations: 13.

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