The dependence of Polarization Degree of Blazars on particle energy distributions
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866910846416846848 |
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| author | Misra, Ranjeev Bora, Hritwik Gogoi, Rupjyoti |
| author_facet | Misra, Ranjeev Bora, Hritwik Gogoi, Rupjyoti |
| contents | We present a formalism to predict the Polarization Degree (PD) for synchrotron emission from particles having a specified energy distribution in the presence of an ordered and random magnetic field configuration. The broad band spectral energy distribution as well as the X-ray and optical PD data for Mrk 501 have been fitted using the formalism. As reported earlier, we find that for a broken power law particle energy distribution, the PD cannot be explained, unless it is assumed that the higher energy particles experience a higher ordered magnetic field compared to the lower energy ones. On the other hand, a log parabola particle energy distribution can explain the observed higher X-ray PD compared to the optical, even when all the particles experience the same magnetic configuration. We discuss the possibility of distinguishing the two scenarios using future observations. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2502_19379 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The dependence of Polarization Degree of Blazars on particle energy distributions Misra, Ranjeev Bora, Hritwik Gogoi, Rupjyoti High Energy Astrophysical Phenomena We present a formalism to predict the Polarization Degree (PD) for synchrotron emission from particles having a specified energy distribution in the presence of an ordered and random magnetic field configuration. The broad band spectral energy distribution as well as the X-ray and optical PD data for Mrk 501 have been fitted using the formalism. As reported earlier, we find that for a broken power law particle energy distribution, the PD cannot be explained, unless it is assumed that the higher energy particles experience a higher ordered magnetic field compared to the lower energy ones. On the other hand, a log parabola particle energy distribution can explain the observed higher X-ray PD compared to the optical, even when all the particles experience the same magnetic configuration. We discuss the possibility of distinguishing the two scenarios using future observations. |
| title | The dependence of Polarization Degree of Blazars on particle energy distributions |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2502.19379 |