| Texto completo | |
| Autor(es): |
Tueros, Matias
;
GRAND Collaboration
;
Riccobene, G
;
Biagi, S
;
Capone, A
;
Distefano, C
;
Piattelli, P
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | 8TH INTERNATIONAL CONFERENCE ON ACOUSTIC AND RADIO EEV NEUTRINO DETECTION ACTIVITIES (ARENA 2018); v. 216, p. 6-pg., 2019-01-01. |
| Resumo | |
The Giant Radio Array for Neutrino Detection (GRAND) aims to answer one of the most pressing open questions in astrophysics: what is the origin of ultra-high-energy cosmic rays (UHECRs)?. It will do so indirectly: UHECRs make secondary UHE neutrinos which encode information about the properties of UHECRs and their sources. GRAND is designed to discover UHE neutrinos even under pessimistic predictions of their flux, reaching a sensitivity of 6x10(-9)GeV.cm(-2).s(-1).sr(-1) around 10(9)GeV. It will do so by using 20 sub-arrays of 10 000 radio antennas forming a total detector area of 200 000 km(2), making it the largest air-shower detector ever built. With this sensitivity, GRAND will discover cosmogenic neutrinos in 3 years of operation, even in disfavorable scenarios. Because of its subdegree angular resolution, GRAND will also search for point sources of UHE neutrinos, both steady and transient. Moreover, GRAND will be a valuable instrument for astronomy and cosmology, allowing for the discovery and follow-up of large numbers of radio transients - fast radio bursts, giant radio pulses - and studies of the epoch of reionization. In this contribution we will present briefly some of the science goals, detection strategy, construction plans and current status of the GRAND project. (AU) | |
| Processo FAPESP: | 15/15735-1 - Investigação da composição dos raios cósmicos de ultra alta energia utilizando a técnica de detecção por rádio |
| Beneficiário: | Washington Rodrigues de Carvalho Junior |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |