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Identification of bright ultra-metal-poor stars from Multi-Band photometry and spectroscopic follow-up

Grant number: 18/21250-9
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): December 01, 2018
Effective date (End): November 30, 2022
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Stellar Astrophysics
Cooperation agreement: Netherlands Organisation for Scientific Research (NWO)
Principal researcher:Silvia Cristina Fernandes Rossi
Grantee:Hélio Dotto Perottoni
Home Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:15/50374-0 - Mosaic: the multi-object spectrograph for the ESO Extremely Large Telescope, AP.TEM

Abstract

The main goal of this project is to find UltraMetal-Poor Stars in the photometric surveys forfuture statistical studies. With the advent of SDSS, SkyMapper, Pan-STARRS, DES, LSST andJPAS (in two-three years time scale), etc, there is a large archival source for developing newtechniques (e.g. artificial neural network) for finding low-metallicity stars. The identifiedobjects will ultimately be subject to high-resolution spectroscopic follow-up. The Posdocwill be highly involved with large survey datasets and is expected to contribute inthe effort to make the selected candidates available to the international community. Inaddition, we anticipate a BEPE proposal after the first two years, with the goal of workingwith international collaborators on this project.

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Scientific publications (9)
(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)
SANTOS-SILVA, T.; PEROTTONI, H. D.; ALMEIDA-FERNANDES, F.; GREGORIO-HETEM, J.; JATENCO-PEREIRA, V; MENDES DE OLIVEIRA, C.; MONTMERLE, T.; BICA, E.; BONATTO, C.; MONTEIRO, H.; DIAS, W. S.; BARBOSA, C. E.; FERNANDES, B.; GALLI, P. A. B.; BORGES FERNANDES, M.; KANAAN, A.; RIBEIRO, T.; SCHOENELL, W. Canis Major OB1 stellar group contents revealed by Gaia. Monthly Notices of the Royal Astronomical Society, v. 508, n. 1, p. 1033-1055, NOV 2021. Web of Science Citations: 0.
LIMBERG, GUILHERME; SANTUCCI, RAFAEL M.; ROSSI, SILVIA; QUEIROZ, ANNA B. A.; CHIAPPINI, CRISTINA; SOUZA, STEFANO O.; PEROTTONI, HELIO D.; PEREZ-VILLEGAS, ANGELES; BARBOSA, FABRICIA O. Abundance Patterns of alpha and Neutron-capture Elements in the Helmi Stream. Astrophysical Journal Letters, v. 913, n. 2 JUN 2021. Web of Science Citations: 0.
PLACCO, VINICIUS M.; ROEDERER, IAN U.; LEE, YOUNG SUN; ALMEIDA-FERNANDES, FELIPE; HERPICH, FABIO R.; PEROTTONI, HELIO D.; SCHOENELL, WILLIAM; RIBEIRO, TIAGO; KANAAN, ANTONIO. SPLUS J210428.01-004934.2: An Ultra Metal-poor Star Identified from Narrowband Photometry. Astrophysical Journal Letters, v. 912, n. 2 MAY 10 2021. Web of Science Citations: 0.
PEROTTONI, HELIO D.; AMARANTE, JOAO A. S.; LIMBERG, GUILHERME; ROCHA-PINTO, HELIO J.; ROSSI, SILVIA; ANDERS, FRIEDRICH; BORBOLATO, LAIS. Searching for Extragalactic Exoplanetary Systems: The Curious Case of BD+20 2457. Astrophysical Journal Letters, v. 913, n. 1 MAY 2021. Web of Science Citations: 0.
LIMBERG, GUILHERME; SANTUCCI, RAFAEL M.; ROSSI, SILVIA; SHANK, DEREK; PLACCO, VINICIUS M.; BEERS, TIMOTHY C.; SCHLAUFMAN, KEVIN C.; CASEY, ANDREW R.; PEROTTONI, HELIO D.; LEE, YOUNG SUN. Targeting Bright Metal-poor Stars in the Disk and Halo Systems of the Galaxy. ASTROPHYSICAL JOURNAL, v. 913, n. 1 MAY 2021. Web of Science Citations: 0.
WHITTEN, DEVIN D.; PLACCO, VINICIUS M.; BEERS, TIMOTHY C.; AN, DEOKKEUN; LEE, YOUNG SUN; ALMEIDA-FERNANDES, FELIPE; HERPICH, FABIO R.; DAFLON, SIMONE; BARBOSA, CARLOS E.; PEROTTONI, HELIO D.; ROSSI, SILVIA; TISSERA, PATRICIA B.; YOON, JINMI; YOUAKIM, KRIS; SCHOENELL, WILLIAM; RIBEIRO, TIAGO; KANAAN, ANTONIO. The Photometric Metallicity and Carbon Distributions of the Milky Way's Halo and Solar Neighborhood from S-PLUS Observations of SDSS Stripe 82. ASTROPHYSICAL JOURNAL, v. 912, n. 2 MAY 2021. Web of Science Citations: 1.
GREGORIO-HETEM, J.; NAVARETE, F.; HETEM, A.; SANTOS-SILVA, T.; GALLI, P. A. B.; FERNANDES, B.; MONTMERLE, T.; JATENCO-PEREIRA, V; FERNANDES, M. BORGES; PEROTTONI, H. D.; SCHOENELL, W.; RIBEIRO, T.; KANAAN, A. Searching for Active Low-mass Stars in the CMa Star-forming Region: Multi-band Photometry with T80S. ASTRONOMICAL JOURNAL, v. 161, n. 3 MAR 2021. Web of Science Citations: 0.
LIMBERG, GUILHERME; ROSSI, SILVIA; BEERS, TIMOTHY C.; PEROTTONI, HELIO D.; PEREZ-VILLEGAS, ANGELES; SANTUCCI, RAFAEL M.; ABUCHAIM, YURI; PLACCO, VINICIUS M.; LEE, YOUNG SUN; CHRISTLIEB, NORBERT; NORRIS, JOHN E.; BESSELL, MICHAEL S.; RYAN, SEAN G.; WILHELM, RONALD; RHEE, JAEHYON; FREBEL, ANNA. Dynamically Tagged Groups of Very Metal-poor Halo Stars from the HK and Hamburg/ESO Surveys. ASTROPHYSICAL JOURNAL, v. 907, n. 1 JAN 2021. Web of Science Citations: 2.
SALES SILVA, J. V.; PEROTTONI, H. D.; CUNHA, K.; ROCHA-PINTO, H. J.; ALMEIDA-FERNANDES, F.; SOUTO, DIOGO; MAJEWSKI, S. R. Triangulum?Andromeda Overdensity: a Region with a Complex Stellar Population. ASTROPHYSICAL JOURNAL, v. 886, n. 2 DEC 1 2019. Web of Science Citations: 0.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.