Probing the properties of stellar populations in galaxies with environment and redshift using large-scale surveys

• Grant number: 08/57331-0
• Support type: Scholarships in Brazil - Post-Doctorate
• Effective date (Start): March 01, 2009
• Effective date (End): February 28, 2013
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
• Principal researcher: Claudia Lucia Mendes de Oliveira
• Grantee: Robert Neil Proctor
• Home Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 06/56213-9 - New physics from space: formation and evolution of structures in the universe, AP.TEM

Abstract

The primary aim of the project will be to use high S/N galaxy spectra from 3 of the world largest astronomical surveys to produce a database of Stellar population parameters (e.g. age, metallicity, star-formation rate). The applicant's innovative analysis techniques will allow the measurement of the key properties of > 100,00 galaxies out to a red shift of Z ~ 1 (~ half the age of the universe), wish unprecedented accuracy. This benchmark database will be based on thru recent surveys; the 6 degree field galaxy survey (6dFGS), the sdss and the Galaxy and Mass Assembly Survey (GAMA). These surveys overlap on the sky, permitting direct inter-comparison of the results for individual galaxies from each survey, thus providing insight into the surveys' systematics. Their differing features (e.g. selection criteria, sky and redshift coverage, etc.) result in each survey being well suited to address differing specific issues (i.e. trends with galaxy environment, mass and redshift). The proposed research will therefore provide data on a record breaking number of galaxies and will allow the applicant to address outstanding issues in theories of galaxy evolution. (AU)

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)

PROCTOR, ROBERT N.; DE OLIVEIRA, CLAUDIA MENDES; DUPKE, RENATO; DE OLIVEIRA, RAIMUNDO LOPES; CYPRIANO, EDUARDO S.; MILLER, ERIC D.; RYKOFF, ELI. On the mass-to-light ratios of fossil groups. Are they simply dark clusters?. Monthly Notices of the Royal Astronomical Society, v. 418, n. 3, p. 2054-2073, DEC 2011. (10/08341-3, 09/07154-8, 08/57331-0, 09/06295-7)

PROCTOR, ROBERT N.; DE OLIVEIRA, CLAUDIA MENDES; EIGENTHALER, PAUL. Spatially resolved stellar population parameters in the BCGs of two fossil groups. Monthly Notices of the Royal Astronomical Society, v. 439, n. 3, p. 2281-2290, APR 2014. (06/56213-9, 08/57331-0)