Stellar populations of galaxies in the Hydra cluster: an IFU-like approach

• Grant number: 19/01312-2
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: March 01, 2019
• End date: February 29, 2024
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
• Principal Investigator: Claudia Lucia Mendes de Oliveira
• Grantee: Lilianne Mariko Izuti Nakazono
• 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): 21/12744-0 - Assessing the importance of narrow-band filters in large-sky surveys, BE.EP.DD

Abstract

The Southern Photometric Local Universe Survey (S-PLUS) will allow a variety of scientific studies by observing an area of 8000 square degrees of the southern sky in 12 optical broad, medium and narrow bands. In this project, the student will determine the stellar populations of galaxies in the Hydra cluster, a work intended to demonstrate the IFU-like capability of the S-PLUS survey. The data are all in hands, reduced and calibrated, and the methods were already developed in our group. A possible extension of the work is to use IFU spectroscopy from archives to investigate several well-known problems in the study of stellar population abundances, such as (1) testing of different methods such as absorption-line strengths versus full spectral fitting; (2) investigate how to handle correlated variables; (3) investigate methods to avoid binning of the data in the IFU cubes; (4) ensure a robust treatment of emission lines and missing data points or outliers. One other possible extension is the study of star-formation rates in low-surface brightness galaxies found in the Hydra cluster. (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)

LIMA, E. V. R.; SODRE JR, L.; BOM, C. R.; TEIXEIRA, G. S. M.; NAKAZONO, L.; BUZZO, M. L.; QUEIROZ, C.; HERPICH, F. R.; NILO CASTELLON, J. L.; DANTAS, M. L. L.; et al. Photometric redshifts for the S-PLUS Survey: Is machine learning up to the task?. ASTRONOMY AND COMPUTING, v. 38, p. 15-pg., 2022-01-01. (19/06766-1, 09/54006-4, 14/10566-4, 15/11442-0, 19/10923-5, 19/01312-2, 18/09165-6, 18/21661-9)

NAKAZONO, L.; DE OLIVEIRA, C. MENDES; HIRATA, N. S. T.; JERAM, S.; QUEIROZ, C.; EIKENBERRY, STEPHEN S.; GONZALEZ, A. H.; ABRAMO, R.; OVERZIER, R.; ESPADOTO, M.; et al. On the discovery of stars, quasars, and galaxies in the Southern Hemisphere with S-PLUS DR2. Monthly Notices of the Royal Astronomical Society, v. 507, n. 4, p. 5847-5868, NOV 2021. (18/09165-6, 19/06766-1, 19/10923-5, 15/22308-2, 19/26492-3, 18/20977-2, 14/10566-4, 19/01312-2, 18/25671-9, 19/23388-0, 17/25835-9, 15/11442-0, 16/12331-0)

ALMEIDA-FERNANDES, F.; SAMPEDRO, L.; HERPICH, F. R.; MOLINO, A.; BARBOSA, C. E.; BUZZO, M. L.; OVERZIER, R. A.; DE LIMA, E. V. R.; NAKAZONO, L. M., I; OLIVEIRA SCHWARZ, G. B.; et al. Data Release 2 of S-PLUS: Accurate template-fitting based photometry covering similar to 1000 deg(2) in 12 optical filters. Monthly Notices of the Royal Astronomical Society, v. 511, n. 3, p. 29-pg., 2022-02-26. (09/54202-8, 16/12331-0, 19/01312-2, 18/09165-6, 19/10923-5, 19/26492-3, 20/00457-4, 19/23388-0, 14/10566-4, 18/20977-2, 19/11910-4, 19/26412-0, 11/51680-6, 18/21250-9, 17/18191-8)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

NAKAZONO, Lilianne Mariko Izuti. The search for quasars with the Southern Photometric Local Universe Survey (S-PLUS). 2024. Doctoral Thesis - Universidade de São Paulo (USP). Instituto Astronômico e Geofísico (IAG/SBD) São Paulo.