Probing Gamma-Ray Burst VHE Emission with the Southern Wide-Field-of-View Gamma-Ray Observatory
Recent observations have confirmed that Gamma-Ray Burst (GRB) afterglows produce Very High-Energy radiation (VHE, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>E</mi><mo>></mo...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
|
| Series: | Galaxies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4434/9/4/98 |
| _version_ | 1797504448152469504 |
|---|---|
| author | Giovanni La Mura Ulisses Barres de Almeida Ruben Conceição Alessandro De Angelis Francesco Longo Mário Pimenta Bernardo Tomé Davide Miceli |
| author_facet | Giovanni La Mura Ulisses Barres de Almeida Ruben Conceição Alessandro De Angelis Francesco Longo Mário Pimenta Bernardo Tomé Davide Miceli |
| author_sort | Giovanni La Mura |
| collection | DOAJ |
| description | Recent observations have confirmed that Gamma-Ray Burst (GRB) afterglows produce Very High-Energy radiation (VHE, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>E</mi><mo>></mo><mn>100</mn><mspace width="0.166667em"></mspace></mrow></semantics></math></inline-formula>GeV). This highly anticipated discovery opens new scenarios in the interpretation of GRBs and in their role as probes of Extragalactic Background Light (EBL) and Lorentz Invariance Violation (LIV). However, some fundamental questions about the actual nature of VHE emission in GRBs and its evolution during the burst are still unsolved. These questions will be difficult to address, even with future imaging Cherenkov telescopes, such as the Cherenkov Telescope Array (CTA). Here we investigate the prospects of gamma-ray sky monitoring with Extensive Air Showers arrays (EAS) to address these problems. We discuss the theoretical aspects connected with VHE radiation emission and the implications that its temporal evolution properties have on the interpretation of GRBs. By revisiting the high-energy properties of some <i>Fermi</i>-LAT detected GRBs, we estimate the typical fluxes expected in the VHE band and compare them with a range of foreseeable instrument performances, based on the Southern Wide Field-of-view Gamma-ray Observatory concept (SWGO). We focus our analysis on how different instrument capabilities affect the chances to explore the burst onset and early evolution in VHE, providing invaluable complementary information with respect to Cherenkov telescope observations. We show that under the assumption of conditions already observed in historical events, the next-generation ground monitoring detectors can actually contribute to answer several key questions. |
| first_indexed | 2024-03-10T04:04:42Z |
| format | Article |
| id | doaj.art-d447065b3a414ebbb60c78cb583ae835 |
| institution | Directory Open Access Journal |
| issn | 2075-4434 |
| language | English |
| last_indexed | 2024-03-10T04:04:42Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Galaxies |
| spelling | doaj.art-d447065b3a414ebbb60c78cb583ae8352023-11-23T08:26:10ZengMDPI AGGalaxies2075-44342021-11-01949810.3390/galaxies9040098Probing Gamma-Ray Burst VHE Emission with the Southern Wide-Field-of-View Gamma-Ray ObservatoryGiovanni La Mura0Ulisses Barres de Almeida1Ruben Conceição2Alessandro De Angelis3Francesco Longo4Mário Pimenta5Bernardo Tomé6Davide Miceli7Laboratório de Instrumentação e Física Experimental de Partículas (LIP), Av. Prof. Gama Pinto 2, 1649-003 Lisboa, PortugalBrazilian Center for Physics Research (CBPF), Rua Dr. Xavier Sigaud 150, Rio de Janeiro 22290-180, BrazilLaboratório de Instrumentação e Física Experimental de Partículas (LIP), Av. Prof. Gama Pinto 2, 1649-003 Lisboa, PortugalDipartimento di Fisica e Astronomia—Università di Padova, Via Marzolo 8, 35131 Padova, ItalyIFPU—Institute for Fundamental Physics of the Universe, Via Beirut 2, 34014 Trieste, ItalyLaboratório de Instrumentação e Física Experimental de Partículas (LIP), Av. Prof. Gama Pinto 2, 1649-003 Lisboa, PortugalLaboratório de Instrumentação e Física Experimental de Partículas (LIP), Av. Prof. Gama Pinto 2, 1649-003 Lisboa, PortugalLaboratoire d’Annecy de Physique des Particules (LAPP), CNRS-IN2P3, 9 Chemin de Bellevue—BP 110, 74941 Annecy, FranceRecent observations have confirmed that Gamma-Ray Burst (GRB) afterglows produce Very High-Energy radiation (VHE, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>E</mi><mo>></mo><mn>100</mn><mspace width="0.166667em"></mspace></mrow></semantics></math></inline-formula>GeV). This highly anticipated discovery opens new scenarios in the interpretation of GRBs and in their role as probes of Extragalactic Background Light (EBL) and Lorentz Invariance Violation (LIV). However, some fundamental questions about the actual nature of VHE emission in GRBs and its evolution during the burst are still unsolved. These questions will be difficult to address, even with future imaging Cherenkov telescopes, such as the Cherenkov Telescope Array (CTA). Here we investigate the prospects of gamma-ray sky monitoring with Extensive Air Showers arrays (EAS) to address these problems. We discuss the theoretical aspects connected with VHE radiation emission and the implications that its temporal evolution properties have on the interpretation of GRBs. By revisiting the high-energy properties of some <i>Fermi</i>-LAT detected GRBs, we estimate the typical fluxes expected in the VHE band and compare them with a range of foreseeable instrument performances, based on the Southern Wide Field-of-view Gamma-ray Observatory concept (SWGO). We focus our analysis on how different instrument capabilities affect the chances to explore the burst onset and early evolution in VHE, providing invaluable complementary information with respect to Cherenkov telescope observations. We show that under the assumption of conditions already observed in historical events, the next-generation ground monitoring detectors can actually contribute to answer several key questions.https://www.mdpi.com/2075-4434/9/4/98instrumentation—detectorsgamma rays: generalgamma-ray bursts: general |
| spellingShingle | Giovanni La Mura Ulisses Barres de Almeida Ruben Conceição Alessandro De Angelis Francesco Longo Mário Pimenta Bernardo Tomé Davide Miceli Probing Gamma-Ray Burst VHE Emission with the Southern Wide-Field-of-View Gamma-Ray Observatory Galaxies instrumentation—detectors gamma rays: general gamma-ray bursts: general |
| title | Probing Gamma-Ray Burst VHE Emission with the Southern Wide-Field-of-View Gamma-Ray Observatory |
| title_full | Probing Gamma-Ray Burst VHE Emission with the Southern Wide-Field-of-View Gamma-Ray Observatory |
| title_fullStr | Probing Gamma-Ray Burst VHE Emission with the Southern Wide-Field-of-View Gamma-Ray Observatory |
| title_full_unstemmed | Probing Gamma-Ray Burst VHE Emission with the Southern Wide-Field-of-View Gamma-Ray Observatory |
| title_short | Probing Gamma-Ray Burst VHE Emission with the Southern Wide-Field-of-View Gamma-Ray Observatory |
| title_sort | probing gamma ray burst vhe emission with the southern wide field of view gamma ray observatory |
| topic | instrumentation—detectors gamma rays: general gamma-ray bursts: general |
| url | https://www.mdpi.com/2075-4434/9/4/98 |
| work_keys_str_mv | AT giovannilamura probinggammarayburstvheemissionwiththesouthernwidefieldofviewgammarayobservatory AT ulissesbarresdealmeida probinggammarayburstvheemissionwiththesouthernwidefieldofviewgammarayobservatory AT rubenconceicao probinggammarayburstvheemissionwiththesouthernwidefieldofviewgammarayobservatory AT alessandrodeangelis probinggammarayburstvheemissionwiththesouthernwidefieldofviewgammarayobservatory AT francescolongo probinggammarayburstvheemissionwiththesouthernwidefieldofviewgammarayobservatory AT mariopimenta probinggammarayburstvheemissionwiththesouthernwidefieldofviewgammarayobservatory AT bernardotome probinggammarayburstvheemissionwiththesouthernwidefieldofviewgammarayobservatory AT davidemiceli probinggammarayburstvheemissionwiththesouthernwidefieldofviewgammarayobservatory |