Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View
Here, we demonstrate that polarization properties show a wide diversity depending on viewing angles. To simulate images of a supermassive black hole and surrounding plasma, we performed a full-polarimetric general relativistic radiative transfer based on three-dimensional general relativistic magnet...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
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Multidisciplinary Digital Publishing Institute
2022
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| Online Access: | https://hdl.handle.net/1721.1/145996 |
| _version_ | 1811076229412945920 |
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| author | Tsunetoe, Yuh Mineshige, Shin Kawashima, Tomohisa Ohsuga, Ken Akiyama, Kazunori Takahashi, Hiroyuki R. |
| author2 | Haystack Observatory |
| author_facet | Haystack Observatory Tsunetoe, Yuh Mineshige, Shin Kawashima, Tomohisa Ohsuga, Ken Akiyama, Kazunori Takahashi, Hiroyuki R. |
| author_sort | Tsunetoe, Yuh |
| collection | MIT |
| description | Here, we demonstrate that polarization properties show a wide diversity depending on viewing angles. To simulate images of a supermassive black hole and surrounding plasma, we performed a full-polarimetric general relativistic radiative transfer based on three-dimensional general relativistic magnetohydrodynamics models with moderate magnetic strengths. Under an assumption of a hot-jet and cold-disk in the electron temperature prescription, we confirmed a typical scenario where polarized synchrotron emissions from the funnel jet experience Faraday rotation and conversion in the equatorial disk. Further, we found that linear polarization vectors are inevitably depolarized for edge-on-like observers, whereas a portion of vectors survive and reach the observers in face-on-like cases. We also found that circular polarization components have persistent signs in the face-on cases, and changing signs in the edge-on cases. It is confirmed that these features are smoothly connected via intermediate viewing-angle cases. These results are due to Faraday rotation/conversion for different viewing angles, and suggest that a combination of linear and circular polarimetry can give a constraint on the inclination between the observer and black hole’s (and/or disk’s) rotating-axis and plasma properties in the jet–disk structure. These can also lead to a more statistical and unified interpretation for a diversity of emissions from active galactic nuclei. |
| first_indexed | 2024-09-23T10:18:19Z |
| format | Article |
| id | mit-1721.1/145996 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T10:18:19Z |
| publishDate | 2022 |
| publisher | Multidisciplinary Digital Publishing Institute |
| record_format | dspace |
| spelling | mit-1721.1/1459962023-02-15T21:28:55Z Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View Tsunetoe, Yuh Mineshige, Shin Kawashima, Tomohisa Ohsuga, Ken Akiyama, Kazunori Takahashi, Hiroyuki R. Haystack Observatory Here, we demonstrate that polarization properties show a wide diversity depending on viewing angles. To simulate images of a supermassive black hole and surrounding plasma, we performed a full-polarimetric general relativistic radiative transfer based on three-dimensional general relativistic magnetohydrodynamics models with moderate magnetic strengths. Under an assumption of a hot-jet and cold-disk in the electron temperature prescription, we confirmed a typical scenario where polarized synchrotron emissions from the funnel jet experience Faraday rotation and conversion in the equatorial disk. Further, we found that linear polarization vectors are inevitably depolarized for edge-on-like observers, whereas a portion of vectors survive and reach the observers in face-on-like cases. We also found that circular polarization components have persistent signs in the face-on cases, and changing signs in the edge-on cases. It is confirmed that these features are smoothly connected via intermediate viewing-angle cases. These results are due to Faraday rotation/conversion for different viewing angles, and suggest that a combination of linear and circular polarimetry can give a constraint on the inclination between the observer and black hole’s (and/or disk’s) rotating-axis and plasma properties in the jet–disk structure. These can also lead to a more statistical and unified interpretation for a diversity of emissions from active galactic nuclei. 2022-10-26T17:37:33Z 2022-10-26T17:37:33Z 2022-10-21 2022-10-26T11:08:01Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/145996 Galaxies 10 (5): 103 (2022) PUBLISHER_CC http://dx.doi.org/10.3390/galaxies10050103 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ application/pdf Multidisciplinary Digital Publishing Institute Multidisciplinary Digital Publishing Institute |
| spellingShingle | Tsunetoe, Yuh Mineshige, Shin Kawashima, Tomohisa Ohsuga, Ken Akiyama, Kazunori Takahashi, Hiroyuki R. Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View |
| title | Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View |
| title_full | Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View |
| title_fullStr | Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View |
| title_full_unstemmed | Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View |
| title_short | Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View |
| title_sort | diverse polarimetric features of agn jets from various viewing angles towards a unified view |
| url | https://hdl.handle.net/1721.1/145996 |
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