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Extreme phenomena of the Galactic Center and indirect searches of dark matter with gamma rays

Grant number: 19/14893-3
Support Opportunities:Research Grants - Young Investigators Grants
Duration: December 01, 2019 - November 30, 2024
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal Investigator:Aion da Escóssia Melo Viana
Grantee:Aion da Escóssia Melo Viana
Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated scholarship(s):23/15494-0 - Optimization of Indirect Dark Matter Searches with Ground-based Gamma-Ray Observatories, BP.DR
23/12705-0 - Searching for the Origin of Neutrinos Coming from the Galactic Plane, BP.IC
22/01962-0 - Searching for heavy dark matter with gamma-rays, BP.MS
+ associated scholarships 22/04119-1 - Non-thermal gamma-ray emission in the Galactic Center region, BP.MS
22/04510-2 - High-energy astrophysics of the the Galactic Center region in gamma-rays, BP.MS
21/07183-0 - Searching for dark matter in dwarf galaxies with the Fermi Large area telescope, BP.IC
21/09744-9 - Indirect dark matter searches with current and future gamma-ray telescopes, BP.MS
21/03532-0 - Radiative model reconstruction of gamma-rays sources in the Galactic Center region, BP.IC
21/02027-0 - Study of the Galactic Center region and searches for dark matter signals with gamma-rays, BP.DD
21/00131-4 - Searching for dark matter with gamma-rays, BP.IC
20/00667-9 - Extreme phenomena of the Galactic Center and indirect searches of dark matter with gamma rays, BP.JP - associated scholarships


Astrophysical observations of high-energy gamma-rays play a crucial role in the exploration of non-thermal phenomena in the Universe in their most extreme and violent forms. It can also provide unique information about exotic Particle Physics phenomena beyond the Standard Model. For instance, an intense gamma-ray production might be expected from the annihilation of non-baryonic dark matter in dense environments. Among all the high-energy environments of our Galaxy, the Galactic Center region is definitely the richest. It harbors a large amount of non-thermal emitters, including the closest supermassive black hole, multiple supernova remnants and pulsar wind nebulae, and it is expected to be the brightest source of gamma-rays from dark matter annihilation in the sky by several orders of magnitude. The present research project proposes the creation of group at IFSC-USP that will introduce a yet inexistent aspect of very-high-energy Astrophysics in Brazil: analysis of real Cherenkov gamma-ray data with the potential of high-impact discoveries in the fields of dark matter searches and the Galactic Center astrophysics. The main activity of the group will be the analysis of the data collected by the H.E.S.S. telescope and the Fermi-LAT space telescope. H.E.S.S. is one of the leading Cherenkov telescopes in activity and only de-facto precursor to CTA in the southern hemisphere. It is currently undertaking an ambitious program of Key Science Projects to be achieved before CTA starts its operation, including a long-term survey of the Galactic Center region. This application opens the possibility for IFSC-USP to be the first Institution in South America to participate in the H.E.S.S. Collaboration as an associate member, and to take a leading role in its main analysis projects. (AU)

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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)
KHERLAKIAN, MARIA; VIANA, AION; DE SOUZA, VITOR. Uncertainties in measuring the dark matter signal from Milky Way satellites using Cherenkov telescopes. Journal of Cosmology and Astroparticle Physics, v. N/A, n. 3, p. 16-pg., . (18/25793-7, 21/01089-1, 19/14893-3)

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