{ "id": "2501.11381", "version": "v1", "published": "2025-01-20T10:19:13.000Z", "updated": "2025-01-20T10:19:13.000Z", "title": "Revisiting the Fundamental Planes of Black Hole Activity for Strong Jet Sources", "authors": [ "Qing-Chen. Long", "Ai-Jun. Dong", "Qin-Jun. Zhi", "Lun-Hua. Shuang" ], "categories": [ "astro-ph.HE" ], "abstract": "Whether the X-ray emissions of strong jet sources originate from disk+coronas or jets is still controversial. In this work, we constructed a strong jet sample containing 50 flat-spectrum radio quasars (FSRQs), 51 low-synchrotron-peaked BL BLacs (LBLs) and 18 intermediate-synchrotron-peaked BL BLacs (IBLs) to explore the origin of X-ray emissions. Generally, blazars are the typical radio-loud active galactic nucleus (RL-AGNs) with a powerful jet towards the observer, causing their broadband emissions to be boosted. By considering the Doppler boosting effect, we obtain the intrinsic radio--X-ray correlation and the Fundamental Plane of black hole activity (FP) for the strong jet sources: the intrinsic radio--X-ray correlation is $L_{\\rm{R,int}}\\propto L_{\\rm{X,int}}^{1.04}$, which favor the jet-dominate mode, the intrinsic FP is $\\log L_{\\rm{R,int}}=(1.07\\pm0.06)\\log L_{\\rm{X,int}}-(0.22\\pm0.10)\\log M_{\\rm{BH}}-(3.77\\pm2.11)$, which can be interpreted by the hybrid mode of Jet+SSD. Our results suggest that the X-ray emissions of strong jet sources are dominated by the jets, but there may also be a small contribution from the disk. In addition, the radio--X-ray correlation and FP of strong jet sources have not a significant dependence on the Eddington-ratio.", "revisions": [ { "version": "v1", "updated": "2025-01-20T10:19:13.000Z" } ], "analyses": { "keywords": [ "black hole activity", "fundamental plane", "radio-loud active galactic nucleus", "x-ray emissions", "intrinsic radio-x-ray correlation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }