The origin of X-ray emission in 3CRR sources: Hints from mid-infrared Spitzer observations Article Swipe
Shuang‐Liang Li
,
Minfeng Gu
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1051/0004-6361/202141301
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1051/0004-6361/202141301
Aims. Whether X-ray emission in radio-loud (RL) active galactic nuclei (AGNs) originates from disk coronae or jets is still under debate. For example, the positive relationships in radio-quiet AGNs (such as the optical to X-ray spectral index α OX and Eddington ration λ O as well as the X-ray photon index Γ and λ O ) are not detected in RLAGNs. We intend to further investigate this issue in this work. Methods. A sample of 27 luminous sources (including 16 quasars and 11 high-excitation radio galaxies) was selected from the 3CRR catalog to reinvestigate the origin of X-ray emission in RLAGNs, where the X-ray and mid-infrared fluxes are observed by Chandra/XMM-Newton and Spitzer , respectively. Results. It is found for the first time that there is a significant relationship between the mid-infrared to X-ray spectral index α IX and λ IR for whole sample, while there is no relationship between α OX and λ O in quasars. There are strong positive relationships between both L R − L X and L UV − L X panels, which can be well fitted by the disk-corona model. However, there is no significant relationship between Γ and λ IR . The possible reason is related to the effects of the large-scale magnetic field in RLAGNs. Conclusions. We suggest that the X-ray emission in high-excitation RLAGNs originates from a disk-corona system.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1051/0004-6361/202141301
- https://www.aanda.org/articles/aa/pdf/2021/10/aa41301-21.pdf
- OA Status
- bronze
- Cited By
- 4
- References
- 93
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3210633319
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3210633319Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1051/0004-6361/202141301Digital Object Identifier
- Title
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The origin of X-ray emission in 3CRR sources: Hints from mid-infrared Spitzer observationsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2021Year of publication
- Publication date
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2021-07-30Full publication date if available
- Authors
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Shuang‐Liang Li, Minfeng GuList of authors in order
- Landing page
-
https://doi.org/10.1051/0004-6361/202141301Publisher landing page
- PDF URL
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https://www.aanda.org/articles/aa/pdf/2021/10/aa41301-21.pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
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bronzeOpen access status per OpenAlex
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https://www.aanda.org/articles/aa/pdf/2021/10/aa41301-21.pdfDirect OA link when available
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Physics, Astrophysics, Lambda, Active galactic nucleus, Infrared, Spectral index, Quasar, Corona (planetary geology), X-ray, Galaxy, Spectral line, Astronomy, Optics, Astrobiology, VenusTop concepts (fields/topics) attached by OpenAlex
- Cited by
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4Total citation count in OpenAlex
- Citations by year (recent)
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2025: 1, 2024: 1, 2023: 1, 2022: 1Per-year citation counts (last 5 years)
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93Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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