L I P

Laboratório de Instrumentação e Física Experimental de Partículas

L I P

L I P [PARTICLES AND TECHNOLOGY]

LATTES

R&D for a Gamma Observatory in the Southern Hemisphere


// Cosmic rays

Raios cósmicos

Present and planned large field-of-view (FoV) gamma-ray observatories are installed in the Northern Hemisphere, missing, in particular, the galactic center, and have energy thresholds above 0.5 TeV. The goal of the LATTES group is to participate in the design, prototyping and construction of a a ground array able to monitor the Southern gamma-ray sky above 100 GeV, bringing to ground the wide field-of-view and large duty cycle observations characteristic of satellites, with comparable sensitivity and a cost one order of magnitude lower. Such an instrument will be a powerful time-variance explorer filling an empty space in the global multi-messenger network of gravitational waves, electromagnetic telescopes in different wavelengths, and neutrino observatories. It will be able to issue pointing alerts to the large next-generation imaging atmospheric Cherenkov telescope array, CTA, being largely complementary to such observatories. It will collect abundant and highly relevant data and play a fundamental role in the search for emissions from extended regions, as the Fermi bubbles or dark matter annihilation regions.

A proof-of-concept design based on a compact air shower array of hybrid detector units composed by small water Cherenkov detectors (WCD) and resistive plate chambers (RPC) was developed in 2016-17 and published at the beginning of 2018. A proposal submitted to FCT was approved in May 2018 and provides support to the project activities for three years. We are currently working in a new layout concept, with a central core of WCDs equipped with RPC muon hodoscopes surrounded by a large number of WCDs. This layout will allow to cover a considerably larger area, thus increasing the sensitivity of the observatory.

Recently, several groups in the world that are developing similar projects started exchanging ideas and expertise, and for the first time general meetings on a future wide FoV gamma-ray detector for the southern hemisphere were organised. In a meeting held in Lisbon in May 2019 the decision was taken to create an international collaboration for R&D on such an observatory. The new collaboration joins different groups and communities that were already involved in R&D in this field, coming both from currently running experiments and from new R&D projects. The collaboration agreement is expected to be signed by July 1st by a minimum of four countries.

Group webpage at LIP


// Research Area
Física Experimental de Partículas com aceleradores
Contacts
Group Leader:  
Mário Pimenta


pimenta@lip.pt


 


  • Muon identification in a compact single-layered water Cherenkov detector and gamma/hadron discrimination using Machine Learning techniques
  • Author(s):  R. Conceição, B. S. González, A. Guillén, M. Pimenta and B. Tomé
  • Submission:  2021-01-22, Acceptance:  , Publication:  2021-05-13
  • Reference:  Eur. Phys. J. C 81, 542 (2021)   View publication

  • The Southern Wide-Field Gamma-Ray Observatory (SWGO): A Next-Generation Ground-Based Survey Instrument for VHE Gamma-Ray Astronomy
  • Author(s):  P. Abreu et al. (SWGO Collaboration)
  • Submission:  , Acceptance:  , Publication:  2021-05-13
  • Reference:     View publication

  • New methods to reconstruct Xmax and the energy of gamma-ray air showers with high accuracy in large wide-field observatories
  • Author(s):  R. Conceição, L. Peres, M. Pimenta, B. Tomé
  • Submission:  2020-10-25, Acceptance:  2020-12-31, Publication:  2021-01-25
  • Reference:  Eur. Phys. J. C 81, 80 (2021)  

  • Detection of very-high-energy gamma-ray transients with monitoring facilities
  • Author(s):  G La Mura, G Chiaro, R Conceição, A De Angelis, M Pimenta, B Tomé
  • Submission:  2020-01-13, Acceptance:  2020-07-17, Publication:  2020-08-13
  • Reference:   Monthly Notices of the Royal Astronomical Society, Volume 497, Issue 3, September 2020, Pages 3142–314  

View all the group publications


  • ANTS
  •  Anger camera-type detector simulation and experimental data processing tools.
  •     website


View all the group publications



Adriano Henriques
Lisboa
Collaborator

Alberto Blanco
Coimbra
Researcher

Alberto Guillén
Lisboa
Visitor

Alessandro de Angelis
Lisboa
Researcher

Bernardo Tomé
Lisboa
Researcher

Borja González
Lisboa
PhD student

Catarina Espírito Santo
Lisboa
Researcher

Fernando Barão
Lisboa
Researcher

Giovanni La Mura
Lisboa
Researcher

José Carlos Nogueira
Lisboa
Technician

Lucio Gibilisco
Lisboa
PhD student

Luís Lopes
Coimbra
Technician

Luís Mendes
Lisboa
Technician

Mário Pimenta
Lisboa
Researcher

Miguel Ferreira
Lisboa
Technician

Paulo Fonte
Coimbra
Researcher

Pedro Abreu
Lisboa
Researcher

Pedro Assis
Lisboa
Researcher

Pedro Brogueira
Lisboa
Collaborator

Ruben Conceição
Lisboa
Researcher


  • SWGO: the wide-field gamma-ray observatory at the Southern hemisphere
  • Code:  PTDC/FIS-PAR/4300/2020
  • Dates :  2021-05-15 :  2024-05-14
  • Funding:  249,585.00 €  

View all the group publications

 
 

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Laboratório de Instrumentação e Física Experimental de Partículas   LIP.PT

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