EXPLORING THE IMPACT OF ENVIRONMENTAL PROCESSES ON CLUSTERS AND GROUPS OF GALAXIES

• Grant number: 12/13381-0
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Effective date (Start): November 01, 2012
• Effective date (End): March 31, 2017
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
• Principal Investigator: Claudia Lucia Mendes de Oliveira
• Grantee: Jonathan David Hernández Fernández
• Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 11/51680-6 - Exploring the universe: from the galaxies formation to Earth-like planets with the Giant Magellan Telescope, AP.ESP
• Associated scholarship(s): 15/25984-9 - H-alpha study of GALEX star-forming compact groups, BE.EP.PD

Abstract

Clusters and groups of galaxies provide the best scenario to study the influence of the envi-ronment on galaxy evolution and formation.Fossil groups seem to be the missing link between the massive galaxy clusters and the poorgalaxy groups. The scenario of formation traditionally proposed for the brightest galaxy of thesesystems is currently under debate. We propose a ultraviolet-optical probe of the brightest galaxiesof fossil groups in the course of the last billion years in order to quantify the actual impact ofmergers in the formation of the representative galaxy of these groups.Galaxies in clusters and groups are under the influence a plethora of environmental processeswhich arises as an unresolved puzzle. We propose a study of the environmental impact on galaxyproperties in a sample of galaxy clusters in the Local Universe. This sample is covering a widerange of a number of environmental conditions and galaxy and cluster properties/observables.This will help to disentangle and clarify the specific importance of each environmentalmechanism in modulating the galaxy properties.

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)

HERNANDEZ-FERNANDEZ, JONATHAN D.; HAINES, C. P.; DIAFERIO, A.; IGLESIAS-PARAMO, J.; MENDES DE OLIVEIRA, C.; VILCHEZ, J. M.. Star formation activity and gas stripping in the Cluster Projected Phase-Space (CPPS). Monthly Notices of the Royal Astronomical Society, v. 438, n. 3, p. 2186-2200, MAR 2014. (12/13381-0, 06/56213-9)

HERNANDEZ-FERNANDEZ, JONATHAN D.; MENDES DE OLIVEIRA, C.. Star-forming compact groups (SFCGs): an ultraviolet search for a local sample. Monthly Notices of the Royal Astronomical Society, v. 453, n. 2, p. 1965-1980, OCT 21 2015. (12/13381-0, 06/56213-9)

KEHRIG, C.; VILCHEZ, J. M.; PEREZ-MONTERO, E.; IGLESIAS-PARAMO, J.; HERNANDEZ-FERNANDEZ, J. D.; DUARTE PUERTAS, S.; BRINCHMANN, J.; DURRET, F.; KUNTH, D.. Spatially resolved integral field spectroscopy of the ionized gas in IZw18. Monthly Notices of the Royal Astronomical Society, v. 459, n. 3, p. 2992-3004, JUL 1 2016. (12/13381-0)