{"title":"带痕量异常的半经典引力中旋转黑洞的观测特征* * 部分受国家自然科学基金资助(12275004, 12205013, 11873044)。MG 还得到 \"中央高校基本科研业务费\"(2021NTST13)的资助。","authors":"Zhenyu Zhang, Yehui Hou, Minyong Guo","doi":"10.1088/1674-1137/ad432b","DOIUrl":null,"url":null,"abstract":"In a recent work by Fernandes [Phys. Rev. D 108(6), L061502 (2023)], an exact stationary and axisymmetric solution was discovered in semiclassical gravity with type-A trace anomaly. This was identified as a quantum-corrected version of the Kerr black hole. In this study, we explore the observational signatures of this black hole solution. Our investigation reveals that prograde and retrograde light rings exist, whose radii increase monotonically with the coupling parameter <italic toggle=\"yes\">α</italic>. When <italic toggle=\"yes\">α</italic> is negative, the shadow area for the quantum-corrected black hole is smaller than that of the Kerr black hole, whereas when <italic toggle=\"yes\">α</italic> is positive, the area is larger. For a near-extremal black hole, its high-spin feature (the NHEKline) is found to be highly susceptible to disruption by <italic toggle=\"yes\">α</italic>. Furthermore, we discuss the images of the quantum-corrected black hole in the presence of a thin accretion disk and compare them to those of the Kerr black hole. Our study highlights the importance of near-horizon emission sources in detecting the effects of quantum corrections by black hole images.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"18 1","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Observational signatures of rotating black holes in the semiclassical gravity with trace anomaly* * Partly Supported by the National Natural Science Foundation of China (12275004, 12205013, 11873044). MG is also endorsed by ”the Fundamental Research Funds for the Central Universities” (2021NTST13)\",\"authors\":\"Zhenyu Zhang, Yehui Hou, Minyong Guo\",\"doi\":\"10.1088/1674-1137/ad432b\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In a recent work by Fernandes [Phys. Rev. D 108(6), L061502 (2023)], an exact stationary and axisymmetric solution was discovered in semiclassical gravity with type-A trace anomaly. This was identified as a quantum-corrected version of the Kerr black hole. In this study, we explore the observational signatures of this black hole solution. Our investigation reveals that prograde and retrograde light rings exist, whose radii increase monotonically with the coupling parameter <italic toggle=\\\"yes\\\">α</italic>. When <italic toggle=\\\"yes\\\">α</italic> is negative, the shadow area for the quantum-corrected black hole is smaller than that of the Kerr black hole, whereas when <italic toggle=\\\"yes\\\">α</italic> is positive, the area is larger. For a near-extremal black hole, its high-spin feature (the NHEKline) is found to be highly susceptible to disruption by <italic toggle=\\\"yes\\\">α</italic>. Furthermore, we discuss the images of the quantum-corrected black hole in the presence of a thin accretion disk and compare them to those of the Kerr black hole. Our study highlights the importance of near-horizon emission sources in detecting the effects of quantum corrections by black hole images.\",\"PeriodicalId\":10250,\"journal\":{\"name\":\"中国物理C\",\"volume\":\"18 1\",\"pages\":\"\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2024-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"中国物理C\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1088/1674-1137/ad432b\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"PHYSICS, NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"中国物理C","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1674-1137/ad432b","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
引用次数: 0
摘要
费尔南德斯(Fernandes)最近的一项研究[Phys. Rev. D 108(6), L061502 (2023)]发现,在具有A型痕量异常的半经典引力中,存在一个精确的静止和轴对称解。它被认定为量子修正版的克尔黑洞。在这项研究中,我们探索了这种黑洞方案的观测特征。当α为负值时,量子校正黑洞的阴影面积小于克尔黑洞,而当α为正值时,阴影面积则更大。对于近极值黑洞,我们发现它的高自旋特征(NHEKline)极易受到 α 的干扰。此外,我们还讨论了存在薄吸积盘时量子校正黑洞的图像,并将其与克尔黑洞的图像进行了比较。我们的研究强调了近地平线发射源在通过黑洞图像探测量子修正效应方面的重要性。
Observational signatures of rotating black holes in the semiclassical gravity with trace anomaly* * Partly Supported by the National Natural Science Foundation of China (12275004, 12205013, 11873044). MG is also endorsed by ”the Fundamental Research Funds for the Central Universities” (2021NTST13)
In a recent work by Fernandes [Phys. Rev. D 108(6), L061502 (2023)], an exact stationary and axisymmetric solution was discovered in semiclassical gravity with type-A trace anomaly. This was identified as a quantum-corrected version of the Kerr black hole. In this study, we explore the observational signatures of this black hole solution. Our investigation reveals that prograde and retrograde light rings exist, whose radii increase monotonically with the coupling parameter α. When α is negative, the shadow area for the quantum-corrected black hole is smaller than that of the Kerr black hole, whereas when α is positive, the area is larger. For a near-extremal black hole, its high-spin feature (the NHEKline) is found to be highly susceptible to disruption by α. Furthermore, we discuss the images of the quantum-corrected black hole in the presence of a thin accretion disk and compare them to those of the Kerr black hole. Our study highlights the importance of near-horizon emission sources in detecting the effects of quantum corrections by black hole images.
期刊介绍:
Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of:
Particle physics;
Nuclear physics;
Particle and nuclear astrophysics;
Cosmology;
Accelerator physics.
The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication.
The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal.
The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.