| Grant number: | 23/08726-2 |
| Support Opportunities: | Regular Research Grants |
| Start date: | February 01, 2024 |
| End date: | January 31, 2026 |
| Field of knowledge: | Physical Sciences and Mathematics - Astronomy - Stellar Astrophysics |
| Principal Investigator: | Jane Cristina Gregorio-Hetem |
| Grantee: | Jane Cristina Gregorio-Hetem |
| Host Institution: | Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil |
| Associated scholarship(s): | 24/23573-0 - Searching for substructures in Young Stellar Associations,
BP.IC 24/01288-2 - Identification of clumps of molecular gas and the diffuse emission from atomic gas, BP.TT |
Abstract
We intend to characterize the stellar population and investigate the conditions of the gas associated with open clusters, aiming to contribute to a better understanding of their dynamic evolution and the evolution of protoplanetary disks. The project is divided into three sub-projects, defined according to our observational data.(i) From multi-objects spectroscopy acquired with the telescope Gemini, we study the young stellar population in the Canis Major region, which shows an intriguing star formation history. We intend to investigate the effects of the interstellar medium, as well as the presence of ionizing sources, on the formation and evolution of star clusters.(ii) By using spectral synthesis, fitted to observed high resolution spectra, which are available on public data bases, we will study the physical and chemical characteristics of a T Tauri star that hosts a protoplanetary system.(iii) Based on photometric data from the SOAR telescope we investigate the circumstellar characteristics of the members of different star clusters, as well as the diffuse emission of the atomic gas, or the condensations presented by the molecular gas associated with the clusters. The images were obtained with the Spartan camera, at infrared band. We also use data from the SAMI (SOAR adaptive optics module imager) to evaluate [SII] and [OIII] diffuse emission and the degree of ionization of the atomic gas.We ask for financial support providing for the research team the computational resources capable to operate with big data volumes and high resolution graphics, for the image analysis. We also ask for a technical fellowship (level TT4) in order to involve in the team an expert in the methodology related to complex data analysis. (AU)
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