Fermi-detection of gamma-ray Emissions from the Hot Coronae of Radio-quiet Active Galactic Nuclei

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dc.contributor.authorCollaboration, The Fermi-LAT
dc.contributor.authorWang, Jian-Min
dc.contributor.authorLi, Jian
dc.contributor.authorLiu, Jun-Rong
dc.contributor.authorRani, Bindu
dc.date.accessioned2025-04-01T14:55:09Z
dc.date.available2025-04-01T14:55:09Z
dc.date.issued2025-02-26
dc.description.abstractRelativistic jets around supermassive black holes (SMBHs) are well-known powerful γ-ray emitters. In absence of the jets in radio-quiet active galactic nuclei (AGNs), how the SMBHs work in γ-ray bands is still unknown despite of great observational efforts made in the last 3 decades. Considering the previous efforts, we carefully select an AGN sample composed of 37 nearby Seyfert galaxies with ultra-hard X-rays for the goals of γ-ray detections by excluding all potential contamination in this band.
dc.description.sponsorshipThe Fermi-LAT Collaboration acknowledges support for LAT development, operation and data analysis from NASA and DOE (United States), CEA/Irfu and IN2P3/CNRS (France), ASI and INFN (Italy), MEXT, KEK, and JAXA (Japan), and the K.A. Wallenberg Foundation, the Swedish Research Council and the National Space Board (Sweden). Science analysis support in the operations phase from INAF (Italy) and CNES (France) is also gratefully acknowledged. This work performed in part under DOE Contract DE-AC02-76SF00515. Useful discussions are acknowledged with P. Du, Y.-R. Li, Y.-J. Chen and Y.-L. Wang from IHEP AGN Group. We thank the support from NSFC(-12333003, -12273038, -11991050, -11991054), from the National Key R&D Program of China (2020YFC2201400, 2021YFA1600404).
dc.description.urihttp://arxiv.org/abs/2502.19189
dc.format.extent25 pages
dc.genrejournal articles
dc.genrepreprints
dc.identifierdoi:10.13016/m2vapv-rlcb
dc.identifier.urihttps://doi.org/10.48550/arXiv.2502.19189
dc.identifier.urihttp://hdl.handle.net/11603/37865
dc.language.isoen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rightsPublic Domain
dc.rights.urihttps://creativecommons.org/publicdomain/mark/1.0/
dc.subjectAstrophysics - Astrophysics of Galaxies
dc.subjectAstrophysics - High Energy Astrophysical Phenomena
dc.titleFermi-detection of gamma-ray Emissions from the Hot Coronae of Radio-quiet Active Galactic Nuclei
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0001-5711-084X

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