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arXiv 2403.09088astro-ph.HEastro-ph.GA
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基于黑洞自旋质量能量的耀变体基本平面

The fundamental plane of blazars based on the black hole spin-mass energy

Xu Zhang, Dingrong Xiong, Quangui Gao, Guiqin Yang, Fangwu Lu, Weiwei Na, Longhua Qin

AI总结:

本研究基于91个耀变体的X射线、射电光度和黑洞质量数据,发现喷流与吸积相关,并引入黑洞自旋质量能量作为新变量,构建了相关性更优的基本平面,强调自旋在耀变体研究中的重要性。

摘要:

我们研究了91个耀变体的基本平面,其中包括具有已知X射线光度($L_{R}$)、射电光度($L_X$)和黑洞质量测量值($M$)的平谱射电类星体(FSRQs)和BL Lac天体,以反映耀变体中喷流与吸积之间的关系。耀变体的基本平面为log$L_{R}$=${0.273}_{+0.059}^{-0.059}$log$L_X$+${0.695}_{+0.191}^{-0.191}$log$M$+${25.457}_{+2.728}^{-2.728}$,在考虑波束因子效应后为log$L_{R}$=${0.190}_{+0.049}^{-0.049}$log$L_X$+${0.475}_{+0.157}^{-0.157}$log$M$+${28.568}_{+2.245}^{-2.245}$。我们的结果表明耀变体的喷流与吸积存在联系。我们将黑洞自旋能量设为新变量来修正黑洞质量,并探讨黑洞自旋对基本关系的影响。我们发现耀变体的基本平面受到黑洞自旋的影响,这与先前对活动星系核(AGNs)的研究类似。我们进一步检验了一个基于黑洞自旋质量能量($M_{spin}$)的新基本平面。新基本平面(log$L_{R}$=${0.332}_{+0.081}^{-0.081}$log$L_X$+${0.502}_{+0.091}^{-0.091}$log$M_{spin}$+${22.606}_{+3.346}^{-3.346}$,R平方=0.575)表明,与$M$相比,$M_{spin}$在耀变体基本平面中具有更好的相关系数。这些结果支持黑洞自旋应被视为研究耀变体基本平面的重要因素。这些发现可能进一步加深我们对耀变体中Blandford-Znajek过程的理解。

英文摘要:

We examine the fundamental plane of 91 Blazars which include FSRQs and BL Lacs with known X-ray luminosity ($L_{R}$), radio luminosity ($L_X$), and black hole mass measurements ($M$) to reflect the relationship between jet and accretion for blazars. The fundamental plane of Blazars are log$L_{R}$=${0.273}_{+0.059}^{-0.059}$log$L_X$+${0.695}_{+0.191}^{-0.191}$log$M$+${25.457}_{+2.728}^{-2.728}$ and log$L_{R}$=${0.190}_{+0.049}^{-0.049}$log$L_X$+${0.475}_{+0.157}^{-0.157}$log$M$+${28.568}_{+2.245}^{-2.245}$ after considering the effect of beam factor. Our results suggest that the jet of blazars has connection with accretion. We set the black hole spin energy as a new variable to correct the black hole mass and explore the effect of black hole spin on the fundamental relationship. We find that the fundamental plane of Blazars is effected by the black hole spin, which is similar to the previous work for AGNs. We additionally examine a new fundamental plane which is based on the black hole spin-mass energy ($M_{spin}$). The new fundamental plane (log$L_{R}$=${0.332}_{+0.081}^{-0.081}$log$L_X$+${0.502}_{+0.091}^{-0.091}$log$M_{spin}$+${22.606}_{+3.346}^{-3.346}$ with R-Square=0.575) shows that $M_{spin}$ has a better correlation coefficient comparing to the $M$ for fundamental plane of Blazars. These results support that the black hole spin should be considered as a important factor for the study of fundamental plane for Blazars. And these may further our understanding of the Blandford-Znajek process in blazars.

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