| Grant number: | 24/02487-9 |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| Start date: | June 01, 2024 |
| End date: | May 31, 2025 |
| Field of knowledge: | Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics |
| Principal Investigator: | Angela Cristina Krabbe |
| Grantee: | Gabriele da Silva Ilha |
| Supervisor: | Vincenzo Mainieri |
| Host Institution: | Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil |
| Institution abroad: | European Southern Observatory - Headquarters, Germany |
| Associated to the scholarship: | 22/11799-9 - UNVEILING THE NATURE OF RED GEYSER GALAXIES, BP.PD |
Abstract We will characterize and quantify the properties of ionized outflows in the nuclear region of Red Geysers using high-resolution IFS data from GMOS, which includes determining the mass outflow rate and kinetic power. Additionally, we aim to investigate the gas ionization mechanism in the nuclear regions of Red Geysers using diagnostic diagrams like the BPT and WHAN. Using different calibrations, we will estimate the oxygen abundance in the gas phase and analyze its relation to other galaxy properties. This study is significant for understanding the role of AGN feedback in the evolution of Red Geyser galaxies, which represent a substantial fraction of massive quiescent galaxies. Investigating the properties of ionized outflows, gas ionization mechanisms, and chemical abundances of Red Geysers will contribute to our understanding of the interplay between AGN activity and star formation quenching. The results can provide valuable insights into the efficiency of AGN feedback in low-luminosity AGN and its impact on the broader context of galaxy evolution. In parallel with the study of Red Geysers, investigations into high-luminosity AGNs, such as Quasars, which are essential for understanding galaxy evolution, will be performed. Simulations have shown that outflows from AGNs have an impact on the properties of Lya nebulae around high-redshift quasars. These outflows reduce the optical depths of HI and dust in the host galaxy, which helps Lya photons escape from the galactic nucleus. This leads to more extended Lya nebulae in Quasars with outflows. To test the dependence of the Lya nebulae size with the outflow power, it's necessary to characterize the AGN-driven outflow properties in a sample of Quasars with Lya nebulae. The outflow properties can be obtained by mapping [OIII] 5007 with IFS from ERIS for Quasars at high redshift (z~2-3). | |
| News published in Agência FAPESP Newsletter about the scholarship: | |
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