Plasma Instabilities of TeV Pair Beams Induced by Blazars
This thesis develops a new theory combining the beam-plasma instability and IGMF in one picture. Recently, it was observed that the expected cascade emission of gamma rays in the TeV range from some distant blazars is not seen in their spectra. The underlying physical processes are well known, and a...
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| Materyal Türü: | Elektronik Ekitap |
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Cham :
Springer Nature Switzerland : Imprint: Springer,
2025.
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| Edisyon: | 1st ed. 2025. |
| Seri Bilgileri: | Springer Theses, Recognizing Outstanding Ph.D. Research,
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| Konular: | |
| Online Erişim: | https://doi.org/10.1007/978-3-031-98568-3 |
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| 100 | 1 | |a Alawashra, Mahmoud S. A. |e author. |4 aut |4 http://id.loc.gov/vocabulary/relators/aut | |
| 245 | 1 | 0 | |a Plasma Instabilities of TeV Pair Beams Induced by Blazars |h [electronic resource] / |c by Mahmoud S. A. Alawashra. |
| 250 | |a 1st ed. 2025. | ||
| 264 | 1 | |a Cham : |b Springer Nature Switzerland : |b Imprint: Springer, |c 2025. | |
| 300 | |a 1 online resource (XXIII, 118 p. 35 illus.). |b 34 illus. in color. | ||
| 336 | |a text |b txt |2 rdacontent | ||
| 337 | |a computer |b c |2 rdamedia | ||
| 338 | |a online resource |b cr |2 rdacarrier | ||
| 341 | 0 | |b PDF/UA-1 |2 onix | |
| 341 | 0 | |b Table of contents navigation |2 onix | |
| 341 | 0 | |b Single logical reading order |2 onix | |
| 341 | 0 | |b Short alternative textual descriptions |2 onix | |
| 341 | 0 | |b Use of color is not sole means of conveying information |2 onix | |
| 341 | 0 | |b Use of high contrast between text and background color |2 onix | |
| 341 | 0 | |b Next / Previous structural navigation |2 onix | |
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| 347 | |a text file |b PDF |2 rda | ||
| 490 | 1 | |a Springer Theses, Recognizing Outstanding Ph.D. Research, |x 2190-5061 | |
| 505 | 0 | |a Introduction -- Observational Context -- Exploring the Foundations of Beam-Plasma Instability -- IGMF impact on the Beam-Plasma Instability -- Fokker-Planck Diffusion Simulation of the Instability Feedback -- Conclusions and Outlook. | |
| 520 | |a This thesis develops a new theory combining the beam-plasma instability and IGMF in one picture. Recently, it was observed that the expected cascade emission of gamma rays in the TeV range from some distant blazars is not seen in their spectra. The underlying physical processes are well known, and a failure of the model predictions would shake the foundations of modern physics unless a credible explanation for this failure is found. One could argue that a femto-Gauss strong magnetic field in the cosmic voids would disperse the cascade emission, although the question remains as to how this magnetic field was generated. Mahmoud Alawashra provides us with a carefully crafted assessment of a second possibility, namely, energy loss due to plasma instabilities in the cosmic voids. His first point is: what if there is a weak magnetic field? It might not dilute the cascade emission but suppress the beam-plasma instabilities, ruling out an intermediate range of magnetic field amplitudes where neither scenario works. Mahmoud’s study is the first in the literature to combine instability and IGMF in one picture. Authors then investigated the nonlinear feedback of the instability and finds it in a quasi-steady state where the energy loss of the cascades is weak. The whole study is simply outstanding and combines analytical skills with numerical ability. | ||
| 532 | 8 | |a Accessibility summary: This PDF has been created in accordance with the PDF/UA-1 standard to enhance accessibility, including screen reader support, described non-text content (images, graphs), bookmarks for easy navigation, keyboard-friendly links and forms and searchable, selectable text. We recognize the importance of accessibility, and we welcome queries about accessibility for any of our products. If you have a question or an access need, please get in touch with us at accessibilitysupport@springernature.com. Please note that a more accessible version of this eBook is available as ePub. | |
| 532 | 8 | |a No reading system accessibility options actively disabled | |
| 532 | 8 | |a Publisher contact for further accessibility information: accessibilitysupport@springernature.com | |
| 588 | |a Print version record. | ||
| 650 | 0 | |a Plasma astrophysics. | |
| 650 | 0 | |a Cosmology. | |
| 650 | 0 | |a Particles (Nuclear physics). | |
| 650 | 1 | 4 | |a Astrophysical Plasma. |
| 650 | 2 | 4 | |a Cosmology. |
| 650 | 2 | 4 | |a Particle Physics. |
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| 856 | 4 | 0 | |u https://doi.org/10.1007/978-3-031-98568-3 |
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| 950 | |a Focus Bundle Physics and Astronomy (SpringerNature-85420) | ||