The LHAASO PeVatron Bright Sky: What We Learned
The recent detection of 12 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-ray galactic sources well above <inline-formula><math xm...
| المؤلفون الرئيسيون: | , |
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| التنسيق: | مقال |
| اللغة: | English |
| منشور في: |
MDPI AG
2023-05-01
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| سلاسل: | Applied Sciences |
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| الوصول للمادة أونلاين: | https://www.mdpi.com/2076-3417/13/11/6433 |
| _version_ | 1827739763434586112 |
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| author | Martina Cardillo Andrea Giuliani |
| author_facet | Martina Cardillo Andrea Giuliani |
| author_sort | Martina Cardillo |
| collection | DOAJ |
| description | The recent detection of 12 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-ray galactic sources well above <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>E</mi><mo>></mo><mn>100</mn></mrow></semantics></math></inline-formula> TeV by the LHAASO observatory has been a breakthrough in the context of the search for the origin of cosmic rays (CR). Although most of these sources remain unidentified, they are often spatially correlated with leptonic accelerators, such as pulsar and pulsar wind nebulae (PWNe). This dramatically affects the paradigm for which a <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-ray detection at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>E</mi><mo>></mo><mn>100</mn></mrow></semantics></math></inline-formula> TeV implies the presence of a hadronic accelerator of PeV particles (PeVatron). Moreover, the LHAASO results support the idea that sources other than the standard candidates, supernova remnants, can accelerate galactic CRs. In this context, the good angular resolution of future Cherenkov telescopes, such as the ASTRI Mini-Array and CTA, and the higher sensitivity of future neutrino detectors, such as KM3NeT and IceCube-Gen2, will be of crucial importance. In this brief review, we want to summarize the efforts made up to now, from both theoretical and experimental points of view, to fully understand the LHAASO results in the context of the CR acceleration issue. |
| first_indexed | 2024-03-11T03:12:42Z |
| format | Article |
| id | doaj.art-a714ef1c8cbb4477b7cacf520df4ab9d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T03:12:42Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-a714ef1c8cbb4477b7cacf520df4ab9d2023-11-18T07:32:04ZengMDPI AGApplied Sciences2076-34172023-05-011311643310.3390/app13116433The LHAASO PeVatron Bright Sky: What We LearnedMartina Cardillo0Andrea Giuliani1INAF—Istituto di Astrofisica e Planetologia Spaziali, Via del Fosso del Cavaliere 100, 00133 Rome, ItalyINAF—Istituto di Astrofisica Spaziale e Fisica Cosmica, Via Alfonso Corti 12, 20133 Milan, ItalyThe recent detection of 12 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-ray galactic sources well above <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>E</mi><mo>></mo><mn>100</mn></mrow></semantics></math></inline-formula> TeV by the LHAASO observatory has been a breakthrough in the context of the search for the origin of cosmic rays (CR). Although most of these sources remain unidentified, they are often spatially correlated with leptonic accelerators, such as pulsar and pulsar wind nebulae (PWNe). This dramatically affects the paradigm for which a <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-ray detection at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>E</mi><mo>></mo><mn>100</mn></mrow></semantics></math></inline-formula> TeV implies the presence of a hadronic accelerator of PeV particles (PeVatron). Moreover, the LHAASO results support the idea that sources other than the standard candidates, supernova remnants, can accelerate galactic CRs. In this context, the good angular resolution of future Cherenkov telescopes, such as the ASTRI Mini-Array and CTA, and the higher sensitivity of future neutrino detectors, such as KM3NeT and IceCube-Gen2, will be of crucial importance. In this brief review, we want to summarize the efforts made up to now, from both theoretical and experimental points of view, to fully understand the LHAASO results in the context of the CR acceleration issue.https://www.mdpi.com/2076-3417/13/11/6433very high energyPeVatronsgalactic cosmic raysCherenkov telescopes |
| spellingShingle | Martina Cardillo Andrea Giuliani The LHAASO PeVatron Bright Sky: What We Learned Applied Sciences very high energy PeVatrons galactic cosmic rays Cherenkov telescopes |
| title | The LHAASO PeVatron Bright Sky: What We Learned |
| title_full | The LHAASO PeVatron Bright Sky: What We Learned |
| title_fullStr | The LHAASO PeVatron Bright Sky: What We Learned |
| title_full_unstemmed | The LHAASO PeVatron Bright Sky: What We Learned |
| title_short | The LHAASO PeVatron Bright Sky: What We Learned |
| title_sort | lhaaso pevatron bright sky what we learned |
| topic | very high energy PeVatrons galactic cosmic rays Cherenkov telescopes |
| url | https://www.mdpi.com/2076-3417/13/11/6433 |
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