不同尺度黑洞天体的吸积-喷流耦合研究

IF 2.5 4区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS Universe Pub Date : 2024-08-22 DOI:10.3390/universe10080335
Zhou Yang, Qing-Chen Long, Wei-Jia Yang, Ai-Jun Dong
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引用次数: 0

摘要

黑洞活动的基面是研究吸积和喷流的重要工具。然而,我们发现在2-10 keV能段,AGN和XRB的SED是不同的,用2-10 keV的X射线光度来研究基面似乎并不合适。在这项工作中,我们用活动星系核和黑洞双星的黑体辐射峰值附近的光度来代替 2-10 keV 的光度。我们用2500 A˚光度作为AGN的黑体辐射峰值光度,用1 keV光度作为XRB的黑体辐射峰值光度,重新探索黑洞活动的基本平面。我们收集了一些黑洞双星和活动星系核的样本,其光度接近黑体辐射的峰值光度,并研究了射电光度(LR)、黑体辐射峰值光度(Lpeak)和黑洞质量(MBH)之间的基本平面。我们发现,AGN和XRB的射电光度-峰值光度相关系数分别为L5GHz/LEdd∝(L2500A˚/LEdd)1.55和L5GHz/LEdd∝(L1keV/LEdd)1.在辐射效率样本中,AGN 和 XRB 分别为 L5GHz/LEdd∝(L2500A˚/LEdd)0.55 和 L5GHz/LEdd∝(L1keV/LEdd)1.53;在辐射效率样本中,AGN 和 XRB 分别为 L5GHz/LEdd∝(L2500A˚/LEdd)0.48 和 L5GHz/LEdd∝(L1keV/LEdd)0.53。根据射电峰值相关性的相似性,我们进一步提出了射电光度、黑体辐射峰值光度和黑洞质量的基本平面,即辐射效率:logL5GHz=1.57-0.01+0.01logLpeak-0.32-0.16+0.16logMBH-27.73-0.34+0.34,散度为σR = 0.48 dex;辐射效率低:logL5GHz=0.45-0.01+0.01logLpeak+0.91-0.10+0.12logMBH+12.58-0.38+0.38,散度为σR = 0.63 dex。我们的结果与之前关于辐射效率高和辐射效率低的黑洞活动基面的研究结果相似。不过,我们的结果显示出较小的散度,因此当使用相同的黑体辐射部分(即黑体辐射的峰值光度)时,基本面变得更紧密一些。
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A Study of the Accretion–Jet Coupling of Black Hole Objects at Different Scales
The fundamental plane of black hole activity is a very important tool to study accretion and jets. However, we found that the SEDs of AGNs and XRBs are different in the 2–10 keV energy band, and it seems inappropriate to use 2–10 keV X-ray luminosities to study the fundamental plane. In this work, we use the luminosity near the peak of the blackbody radiation of the active galactic nuclei and black hole binaries to replace the 2–10 keV luminosity. We re-explore the fundamental plane of black hole activity by using the 2500 A˚ luminosity as the peak luminosity of the blackbody radiation of AGNs and 1 keV luminosity as the peak luminosity of the blackbody radiation of XRBs. We compile samples of black hole binaries and active galactic nuclei with luminosity near the peak luminosity of blackbody radiation and study the fundamental plane between radio luminosity (LR), the peak luminosity of blackbody radiation (Lpeak), and black hole mass (MBH). We find that the radio–peak luminosity correlations are L5GHz/LEdd∝(L2500A˚/LEdd)1.55 and L5GHz/LEdd∝(L1keV/LEdd)1.53 for AGN and XRB, respectively, in the radiatively efficient sample, and L5GHz/LEdd∝(L2500A˚/LEdd)0.48 and L5GHz/LEdd∝(L1keV/LEdd)0.53 in the radiatively inefficient sample, respectively. Based on the similarities in radio–peak correlations, we further propose a fundamental plane in radio luminosity, the peak luminosity of blackbody radiation, and black hole mass, which is radiatively efficient: logL5GHz=1.57−0.01+0.01logLpeak−0.32−0.16+0.16logMBH−27.73−0.34+0.34 with a scatter of σR = 0.48 dex, and radiatively inefficient: logL5GHz=0.45−0.01+0.01logLpeak+0.91−0.10+0.12logMBH+12.58−0.38+0.38 with a scatter of σR = 0.63 dex. Our results are similar to those of previous studies on the fundamental plane for radiatively efficient and radiatively inefficient black hole activity. However, our results exhibit a smaller scatter, so when using the same part of blackbody radiation (i.e., the peak luminosity of the blackbody radiation), the fundamental plane becomes a little bit tighter.
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来源期刊
Universe
Universe Physics and Astronomy-General Physics and Astronomy
CiteScore
4.30
自引率
17.20%
发文量
562
审稿时长
24.38 days
期刊介绍: Universe (ISSN 2218-1997) is an international peer-reviewed open access journal focused on fundamental principles in physics. It publishes reviews, research papers, communications, conference reports and short notes. Our aim is to encourage scientists to publish their research results in as much detail as possible. There is no restriction on the length of the papers.
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