Constraints on black-hole charges with the 2017 EHT observations of M87

Our understanding of strong gravity near supermassive compact objects has recently improved thanks to the measurements made by the Event Horizon Telescope (EHT). We use here the M87* shadow size to infer constraints on the physical charges of a large variety of nonrotating or rotating black holes. F...

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Veröffentlicht in:	Physical review. D 2021-05, Vol.103 (10)
Hauptverfasser:	Rezzolla, Luciano, Kramer, Michael, Alberdi, Antxon, Azulay, Rebecca, Baczko, Anne-Kathrin, Benson, Bradford A., Blackburn, Lindy, Blundell, Raymond, Boland, Wilfred, Bouman, Katherine L., Boyce, Hope, Bremer, Michael, Brinkerink, Christiaan D., Bronzwaer, Thomas, Carlstrom, John E., Chael, Andrew, Chan, Chi-kwan, Chatterjee, Shami, Chatterjee, Koushik, Chen, Ming-Tang, Chen, Yongjun, Chesler, Paul M., Christian, Pierre, Cruz-Osorio, Alejandro, De Laurentis, Mariafelicia, Deane, Roger, Dempsey, Jessica, Desvignes, Gregory, Farah, Joseph, Fish, Vincent L., Fraga-Encinas, Raquel, Fuentes, Antonio, García, Roberto, Gentaz, Olivier, Goddi, Ciriaco, Gold, Roman, Gu, Minfeng, Haggard, Daryl, Huang, Lei, Ikeda, Shiro, Jannuzi, Buell T., Janssen, Michael, Jeter, Britton, Jiang, Wu, Jimenez-Rosales, Alejandra, Jung, Taehyun, Karuppusamy, Ramesh, Kim, Dong-Jin, Koyama, Shoko, Kuo, Cheng-Yu, Levis, Aviad, Lindqvist, Michael, Lico, Rocco, Lindahl, Greg, Liu, Kuo, Liuzzo, Elisabetta, Lo, Wen-Ping, Lonsdale, Colin, Marchili, Nicola, Menten, Karl M., Mizuno, Izumi, Mejías, Alejandro Mus, Nagar, Neil M., Neri, Roberto, Ni, Chunchong, Noutsos, Aristeidis, Okino, Hiroki, Oyama, Tomoaki, Özel, Feryal, Palumbo, Daniel C. M., Patel, Nimesh, Pesce, Dominic W., Plambeck, Richard, Porth, Oliver, Prather, Ben, Ramakrishnan, Venkatessh, Ripperda, Bart, Rogers, Alan, Ros, Eduardo, Roshanineshat, Arash, Ruszczyk, Chet, Rygl, Kazi L. J., Sánchez-Arguelles, David, Savolainen, Tuomas, Shen, Zhiqiang, Small, Des, Tiede, Paul, Tilanus, Remo P. J., Torne, Pablo, Trippe, Sascha, van Langevelde, Huib Jan, Ward-Thompson, Derek, Wardle, John, Wex, Norbert, Wielgus, Maciek, Wu, Qingwen, Yuan, Feng, Yuan, Ye-Fei, Zhao, Shan-Shan, EHT Collaboration
Format:	Artikel
Sprache:	eng
Schlagworte:	Accretion disk & black-hole plasma Alternative gravity theories ASTRONOMY AND ASTROPHYSICS Classical black holes Electromagnetic radiation astronomy Experimental studies of gravity Galaxies General relativity Radio, microwave, & sub-mm astronomy
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Zusammenfassung:	Our understanding of strong gravity near supermassive compact objects has recently improved thanks to the measurements made by the Event Horizon Telescope (EHT). We use here the M87* shadow size to infer constraints on the physical charges of a large variety of nonrotating or rotating black holes. For example, we show that the quality of the measurements is already sufficient to rule out that M87* is a highly charged dilaton black hole. Similarly, when considering black holes with two physical and independent charges, we are able to exclude considerable regions of the space of parameters for the doubly-charged dilaton and the Sen black holes.
ISSN:	2470-0010 2470-0029