Spatially resolved polarization variation of the Crab Nebula
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866913791446351872 |
|---|---|
| author | Zuo, Chao Xie, Fei Ge, Mingyu Deng, Wei Liu, Kuan La Monaca, Fabio Di Marco, Alessandro Wei, Wenhao Chen, Wei |
| author_facet | Zuo, Chao Xie, Fei Ge, Mingyu Deng, Wei Liu, Kuan La Monaca, Fabio Di Marco, Alessandro Wei, Wenhao Chen, Wei |
| contents | We examined the spatially resolved polarization variations in the Crab Nebula over 2 yr, using observational data from the Imaging X-ray Polarimetry Explorer, and offer key insights into its magnetic field structures and evolution. The results show significant temporal changes in the polarization degree (PD) across three regions of interest in the 2-8 keV energy band. Regions (a) and (b), located in the northern and the southwestern parts of the study area, exhibit PD variations with significance levels greater than 4 sigma and 3 sigma , respectively. Region (c), located in the southwest,shows a notable decrease in PD with a significance greater than 5 sigma. However, no significant variation in the polarization angle was observed. Meanwhile, notable flux variations were detected, likely influenced by dynamic processes such as magnetized turbulence within the nebula. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_09550 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spatially resolved polarization variation of the Crab Nebula Zuo, Chao Xie, Fei Ge, Mingyu Deng, Wei Liu, Kuan La Monaca, Fabio Di Marco, Alessandro Wei, Wenhao Chen, Wei High Energy Astrophysical Phenomena We examined the spatially resolved polarization variations in the Crab Nebula over 2 yr, using observational data from the Imaging X-ray Polarimetry Explorer, and offer key insights into its magnetic field structures and evolution. The results show significant temporal changes in the polarization degree (PD) across three regions of interest in the 2-8 keV energy band. Regions (a) and (b), located in the northern and the southwestern parts of the study area, exhibit PD variations with significance levels greater than 4 sigma and 3 sigma , respectively. Region (c), located in the southwest,shows a notable decrease in PD with a significance greater than 5 sigma. However, no significant variation in the polarization angle was observed. Meanwhile, notable flux variations were detected, likely influenced by dynamic processes such as magnetized turbulence within the nebula. |
| title | Spatially resolved polarization variation of the Crab Nebula |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2504.09550 |