First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization

doi:10.3847/2041-8213/acff70

CORC > 云南天文台 > 中国科学院云南天文台 > 中国科学院天体结构与演化重点实验室

	First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization
	Akiyama, Kazunori 2,3,4; Alberdi, Antxon 5; Alef, Walter 6; Algaba, Juan Carlos 7; Anantua, Richard 4,8,9; Asada, Keiichi 10; Azulay, Rebecca 6,11,12; Bach, Uwe 6; Baczko, Anne-Kathrin 6,13; Ball, David 14
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2023-11-01
卷号	957 期号:2
ISSN号	2041-8205
DOI	10.3847/2041-8213/acff70
产权排序	第103完成单位
文献子类	Article
英文摘要	Event Horizon Telescope (EHT) observations have revealed a bright ring of emission around the supermassive black hole at the center of the M87 galaxy. EHT images in linear polarization have further identified a coherent spiral pattern around the black hole, produced from ordered magnetic fields threading the emitting plasma. Here we present the first analysis of circular polarization using EHT data, acquired in 2017, which can potentially provide additional insights into the magnetic fields and plasma composition near the black hole. Interferometric closure quantities provide convincing evidence for the presence of circularly polarized emission on event-horizon scales. We produce images of the circular polarization using both traditional and newly developed methods. All methods find a moderate level of resolved circular polarization across the image (divided by v divided by > < 3.7%), consistent with the low image-integrated circular polarization fraction measured by the Atacama Large Millimeter/submillimeter Array (divided by v(int)divided by < 1%). Despite this broad agreement, the methods show substantial variation in the morphology of the circularly polarized emission, indicating that our conclusions are strongly dependent on the imaging assumptions because of the limited baseline coverage, uncertain telescope gain calibration, and weakly polarized signal. We include this upper limit in an updated comparison to general relativistic magnetohydrodynamic simulation models. This analysis reinforces the previously reported preference for magnetically arrested accretion flow models. We find that most simulations naturally produce a low level of circular polarization consistent with our upper limit and that Faraday conversion is likely the dominant production mechanism for circular polarization at 230 GHz in M87*.
学科主题	天文学
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目	Academia Sinica; the Academy of Finland[274477]; the Academy of Finland[284495]; the Academy of Finland[312496]; the Academy of Finland[315721]; Agencia Nacional de Investigacion y Desarrollo (ANID), Chile[NCN19_058 (TITANs)]; Fondecyt[1221421]; BASAL[FB210003]; Alexander von Humboldt Stiftung; Alfred P. Sloan Research Fellowship; Allegro; European ALMA Regional Centre node in the Netherlands; NL astronomy research network NOVA; astronomy institutes of the University of Amsterdam; Leiden University,; Radboud University; ALMA North America Development Fund; Astrophysics and High Energy Physics program by MCIN - European Union NextGenerationEU[PRTR-C17I1]; John Templeton Foundation; Gordon and Betty Moore Foundation; Brinson Foundation; la Caixa Foundation[100010434]; la Caixa Foundation[LCF/BQ/DI22/11940027]; la Caixa Foundation[LCF/BQ/DI22/11940030]; China Scholarship Council; China Postdoctoral Science Foundation[2020M671266]; China Postdoctoral Science Foundation[2022M712084]; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[U0004-246083]; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[U0004-259839]; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[F0003-272050]; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[M0037-279006]; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[F0003-281692]; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[104497]; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[275201]; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[263356]; Colfuturo Scholarship; Consejeria de Economia, Conocimiento, Empresas y Universidad of the Junta de Andalucia[P18-FR-1769]; Consejo Superior de Investigaciones Cientificas[2019AEP112]; Delaney Family via the Delaney Family John A. Wheeler Chair at Perimeter Institute; Direccion General de Asuntos del Personal Academico-Universidad Nacional Autonoma de Mexico (DGAPA-UNAM)[IN112417]; Direccion General de Asuntos del Personal Academico-Universidad Nacional Autonoma de Mexico (DGAPA-UNAM)[IN112820]; Dutch Organization for Scientific Research (NWO)[639.043.513]; Dutch Organization for Scientific Research (NWO)[OCENW.KLEIN.113]; Dutch Black Hole Consortium of the research program the National Science Agenda[NWA 1292.19.202]; Dutch National Supercomputers, Cartesius and Snellius[2021.013]; Academia Sinica Institute of Astronomy and Astrophysics; National Astronomical Observatory of Japan; Center for Astronomical Mega-Science; Chinese Academy of Sciences; Korea Astronomy and Space Science Institute; European Research Council (ERC)[730562]; European Research Council (ERC)[101018682]; Horizon ERC[101040021]; Generalitat Valenciana[APOSTD/2018/177]; Generalitat Valenciana[ASFAE/2022/018]; GenT Program[CIDEGENT/2018/021]; European Research Council[884631]; FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[2021/01183-8]; Istituto Nazionale di Fisica Nucleare (INFN) sezione di Napoli, iniziative specifiche TEONGRAV; International Max Planck Research School for Astronomy and Astrophysics at the Universities of Bonn and Cologne[FR 4069/2-1]; Simons Foundation; Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT)[JPMXP1020200109]; Japan Society for the Promotion of Science (JSPS)[JP17J08829]
WOS关键词	RELATIVISTIC MAGNETOHYDRODYNAMIC SIMULATIONS ; MAGNETICALLY ARRESTED ACCRETION ; ACTIVE GALACTIC NUCLEI ; SGR A-ASTERISK ; BLACK-HOLE ; GRMHD SIMULATIONS ; POLARIMETRIC IMAGES ; FLOWS ; JETS ; EMISSION
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001105906200001
资助机构	Academia Sinica ; the Academy of Finland[274477, 284495, 312496, 315721] ; Agencia Nacional de Investigacion y Desarrollo (ANID), Chile[NCN19_058 (TITANs)] ; Fondecyt[1221421] ; BASAL[FB210003] ; Alexander von Humboldt Stiftung ; Alfred P. Sloan Research Fellowship ; Allegro ; European ALMA Regional Centre node in the Netherlands ; NL astronomy research network NOVA ; astronomy institutes of the University of Amsterdam ; Leiden University, ; Radboud University ; ALMA North America Development Fund ; Astrophysics and High Energy Physics program by MCIN - European Union NextGenerationEU[PRTR-C17I1] ; John Templeton Foundation ; Gordon and Betty Moore Foundation ; Brinson Foundation ; la Caixa Foundation[100010434, LCF/BQ/DI22/11940027, LCF/BQ/DI22/11940030] ; China Scholarship Council ; China Postdoctoral Science Foundation[2020M671266, 2022M712084] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[U0004-246083, U0004-259839, F0003-272050, M0037-279006, F0003-281692, 104497, 275201, 263356] ; Colfuturo Scholarship ; Consejeria de Economia, Conocimiento, Empresas y Universidad of the Junta de Andalucia[P18-FR-1769] ; Consejo Superior de Investigaciones Cientificas[2019AEP112] ; Delaney Family via the Delaney Family John A. Wheeler Chair at Perimeter Institute ; Direccion General de Asuntos del Personal Academico-Universidad Nacional Autonoma de Mexico (DGAPA-UNAM)[IN112417, IN112820] ; Dutch Organization for Scientific Research (NWO)[639.043.513, OCENW.KLEIN.113] ; Dutch Black Hole Consortium of the research program the National Science Agenda[NWA 1292.19.202] ; Dutch National Supercomputers, Cartesius and Snellius[2021.013] ; Academia Sinica Institute of Astronomy and Astrophysics ; National Astronomical Observatory of Japan ; Center for Astronomical Mega-Science ; Chinese Academy of Sciences ; Korea Astronomy and Space Science Institute ; European Research Council (ERC)[730562, 101018682] ; Horizon ERC[101040021] ; Generalitat Valenciana[APOSTD/2018/177, ASFAE/2022/018] ; GenT Program[CIDEGENT/2018/021] ; European Research Council[884631] ; FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[2021/01183-8] ; Istituto Nazionale di Fisica Nucleare (INFN) sezione di Napoli, iniziative specifiche TEONGRAV ; International Max Planck Research School for Astronomy and Astrophysics at the Universities of Bonn and Cologne[FR 4069/2-1] ; Simons Foundation ; Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT)[JPMXP1020200109] ; Japan Society for the Promotion of Science (JSPS)[JP17J08829]
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26485]
专题	云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.JILA and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309, USA; 2.Massachusetts Institute of Technology Haystack Observatory, 99 Millstone Road, Westford, MA 01886, USA; 3.National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; 4.Black Hole Initiative at Harvard University, 20 Garden Street, Cambridge, MA 02138, USA; 5.Instituto de Astrofísica de Andalucía-CSIC, Glorieta de la Astronomía s/n, E-18008 Granada, Spain; 6.Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; 7.Department of Physics, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia; 8.Center for Astrophysics \| Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; 9.Department of Physics & Astronomy, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA; 10.Institute of Astronomy and Astrophysics, Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan, R.O.C.;
推荐引用方式 GB/T 7714	Akiyama, Kazunori,Alberdi, Antxon,Alef, Walter,et al. First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization[J]. ASTROPHYSICAL JOURNAL LETTERS,2023,957(2).
APA	Akiyama, Kazunori.,Alberdi, Antxon.,Alef, Walter.,Algaba, Juan Carlos.,Anantua, Richard.,...&Zhao, Shan-Shan.(2023).First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization.ASTROPHYSICAL JOURNAL LETTERS,957(2).
MLA	Akiyama, Kazunori,et al."First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization".ASTROPHYSICAL JOURNAL LETTERS 957.2(2023).