Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Alfredo Herrera-Aguilar"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 6, Pp 1-14 (2024)
Abstract Motivated by recent achievements of a full general relativistic method in estimating the mass-to-distance ratio of supermassive black holes hosted at the core of active galactic nuclei, we introduce the new concept redshift rapidity in order
Externí odkaz:
https://doaj.org/article/0470080a83854d9aa8fcc22df9595e5f
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 5, Pp 1-10 (2024)
Abstract In this paper, we employ a general relativistic formalism and develop new theoretical tools that allow us to analytically express the mass and electric charge of the Reissner–Nordström black hole as well as its distance to a distant obser
Externí odkaz:
https://doaj.org/article/dd9766af66ec426f9ae8ae395f0b60b5
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 3, Pp 1-10 (2024)
Abstract In this work, we obtain an expression for the total observational frequency shift of photons emitted by massive geodesic particles circularly orbiting a black hole in a general spherically symmetric background. Our general relations are pres
Externí odkaz:
https://doaj.org/article/f4b2f672d7c4457dbf01ce4d0637c04c
Autor:
Alfredo Herrera-Aguilar, Jhony A. Herrera-Mendoza, Daniel F. Higuita-Borja, Julio A. Méndez-Zavaleta, Carlos Eduardo Romero-Figueroa
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 4, Pp 1-21 (2023)
Abstract We investigate novel exact solutions to an Einstein–Maxwell theory non-minimally coupled to a self-interacting dilaton-like scalar. Extending the results of Herrera-Aguilar et al. (Phys. Rev. D 103(12):124025, 2021. arXiv:2012.13412 [hep-t
Externí odkaz:
https://doaj.org/article/dc885d9795ec487785773f469ecf9cc7
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 10, Pp 1-9 (2021)
Abstract We present a spinning black hole solution in d dimensions with a maximal number of rotation parameters in the context of the Einstein–Maxwell-Dilaton theory. An interesting feature of such a solution is that it accommodates Lifshitz black
Externí odkaz:
https://doaj.org/article/c67fb1a35d6d492590198ae8db199d9c
Autor:
Pablo Torne, Kuo Liu, Ralph P. Eatough, Jompoj Wongphechauxsorn, James M. Cordes, Gregory Desvignes, Mariafelicia De Laurentis, Michael Kramer, Scott M. Ransom, Shami Chatterjee, Robert Wharton, Ramesh Karuppusamy, Lindy Blackburn, Michael Janssen, Chi-kwan Chan, Geoffrey, B. Crew, Lynn D. Matthews, Ciriaco Goddi, Helge Rottmann, Jan Wagner, Salvador Sánchez, Ignacio Ruiz, Federico Abbate, Geoffrey C. Bower, Juan J. Salamanca, Arturo I. Gómez-Ruiz, Alfredo Herrera-Aguilar, Wu Jiang, Ru-Sen Lu, Ue-Li Pen, Alexander W. Raymond, Lijing Shao, Zhiqiang Shen, Gabriel Paubert, Miguel Sanchez-Portal, Carsten Kramer, Manuel Castillo, Santiago Navarro, David John, Karl-Friedrich Schuster, Michael D. Johnson, Kazi L. J. Rygl, Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, Keiichi Asada, Rebecca Azulay, Uwe Bach, Anne-Kathrin Baczko, David Ball, Mislav Baloković, John Barrett, Michi Bauböck, Bradford A. Benson, Dan Bintley, Raymond Blundell, Katherine L. Bouman, Hope Boyce, Michael Bremer, Christiaan D. Brinkerink, Roger Brissenden, Silke Britzen, Avery E. Broderick, Dominique Broguiere, Thomas Bronzwaer, Sandra Bustamante, Do-Young Byun, John E. Carlstrom, Chiara Ceccobello, Andrew Chael, Dominic O. Chang, Koushik Chatterjee, Ming-Tang Chen, Yongjun Chen, Xiaopeng Cheng, Ilje Cho, Pierre Christian, Nicholas S. Conroy, John E. Conway, Thomas M. Crawford, Alejandro Cruz-Osorio, Yuzhu Cui, Rohan Dahale, Jordy Davelaar, Roger Deane, Jessica Dempsey, Jason Dexter, Vedant Dhruv, Sheperd S. Doeleman, Sean Dougal, Sergio A. Dzib, Razieh Emami, Heino Falcke, Joseph Farah, Vincent L. Fish, Ed Fomalont, H. Alyson Ford, Marianna Foschi, Raquel Fraga-Encinas, William T. Freeman, Per Friberg, Christian M. Fromm, Antonio Fuentes, Peter Galison, Charles F. Gammie, Roberto García, Olivier Gentaz, Boris Georgiev, Roman Gold, José L. Gómez, Minfeng Gu, Mark Gurwell, Kazuhiro Hada, Daryl Haggard, Kari Haworth, Michael H. Hecht, Ronald Hesper, Dirk Heumann, Luis C. Ho, Paul Ho, Mareki Honma, Chih-Wei L. Huang, Lei Huang, David H. Hughes, Shiro Ikeda, C. M. Violette Impellizzeri, Makoto Inoue, Sara Issaoun, David J. James, Buell T. Jannuzi, Britton Jeter, Alejandra Jiménez-Rosales, Svetlana Jorstad, Abhishek V. Joshi, Taehyun Jung, Mansour Karami, Tomohisa Kawashima, Garrett K. Keating, Mark Kettenis, Dong-Jin Kim, Jae-Young Kim, Jongsoo Kim, Junhan Kim, Motoki Kino, Jun Yi Koay, Prashant Kocherlakota, Yutaro Kofuji, Shoko Koyama, Thomas P. Krichbaum, Cheng-Yu Kuo, Noemi La Bella, Tod R. Lauer, Daeyoung Lee, Sang-Sung Lee, Po Kin Leung, Aviad Levis, Zhiyuan Li, Rocco Lico, Greg Lindahl, Michael Lindqvist, Mikhail Lisakov, Jun Liu, Elisabetta Liuzzo, Wen-Ping Lo, Andrei P. Lobanov, Laurent Loinard, Colin J. Lonsdale, Nicholas R. MacDonald, Jirong Mao, Nicola Marchili, Sera Markoff, Daniel P. Marrone, Alan P. Marscher, Iván Martí-Vidal, Satoki Matsushita, Lia Medeiros, Karl M. Menten, Daniel Michalik, Izumi Mizuno, Yosuke Mizuno, James M. Moran, Kotaro Moriyama, Monika Moscibrodzka, Cornelia Müller, Hendrik Müller, Alejandro Mus, Gibwa Musoke, Ioannis Myserlis, Andrew Nadolski, Hiroshi Nagai, Neil M. Nagar, Masanori Nakamura, Ramesh Narayan, Gopal Narayanan, Iniyan Natarajan, Antonios Nathanail, Joey Neilsen, Roberto Neri, Chunchong Ni, Aristeidis Noutsos, Michael A. Nowak, Junghwan Oh, Hiroki Okino, Héctor Olivares, Gisela N. Ortiz-León, Tomoaki Oyama, Feryal Özel, Daniel C. M. Palumbo, Georgios Filippos Paraschos, Jongho Park, Harriet Parsons, Nimesh Patel, Dominic W. Pesce, Vincent Piétu, Richard Plambeck, Aleksandar PopStefanija, Oliver Porth, Felix M. Pötzl, Ben Prather, Jorge A. Preciado-López, Dimitrios Psaltis, Hung-Yi Pu, Venkatessh Ramakrishnan, Ramprasad Rao, Mark G. Rawlings, Luciano Rezzolla, Angelo Ricarte, Bart Ripperda, Freek Roelofs, Alan Rogers, Eduardo Ros, Cristina Romero-Cañizales, Arash Roshanineshat, Alan L. Roy, Chet Ruszczyk, David Sánchez-Argüelles, Mahito Sasada, Kaushik Satapathy, Tuomas Savolainen, F. Peter Schloerb, Jonathan Schonfeld, Des Small, Bong Won Sohn, Jason SooHoo, Kamal Souccar, He Sun, Alexandra J. Tetarenko, Paul Tiede, Remo P. J. Tilanus, Michael Titus, Teresa Toscano, Efthalia Traianou, Tyler Trent, Sascha Trippe, Matthew Turk, Ilse van Bemmel, Huib Jan van Langevelde, Daniel R. van Rossum, Jesse Vos, Derek Ward-Thompson, John Wardle, Jonathan Weintroub, Norbert Wex, Maciek Wielgus, Kaj Wiik, Gunther Witzel, Michael F. Wondrak, George N. Wong, Qingwen Wu, Nitika Yadlapalli, Paul Yamaguchi, Aristomenis Yfantis, Doosoo Yoon, André Young, Ken Young, Ziri Younsi, Wei Yu, Feng Yuan, Ye-Fei Yuan, J. Anton Zensus, Shuo Zhang, Guang-Yao Zhao, Shan-Shan Zhao
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 1, p 14 (2023)
In 2017 the Event Horizon Telescope (EHT) observed the supermassive black hole at the center of the Milky Way, Sagittarius A* (Sgr A*), at a frequency of 228.1 GHz ( λ = 1.3 mm). The fundamental physics tests that even a single pulsar orbiting Sgr A
Externí odkaz:
https://doaj.org/article/82aa55060d3b414c82a616211660779a
We extract the Hubble law by the frequency-shift considerations of test particles revolving the Kerr black hole in asymptotically de Sitter spacetime. To this end, we take into account massive geodesic particles circularly orbiting the Kerr-de Sitter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8c3187a656e2a2d50b6171858f437be
Autor:
Jhony A. Herrera-Mendoza, Daniel F. Higuita-Borja, Julio A. Méndez-Zavaleta, Alfredo Herrera-Aguilar, Felipe Pérez-Rodríguez
Publikováno v:
Physical Review
We construct a type-II holographic superconductor from an anisotropic rotating background metric. We study the effects of the magnetic field on the vortex structure, including continuous deformations both from triangular to square lattices or vice ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c967963aabde89dc24ffc233695f443
http://arxiv.org/abs/2208.05988
http://arxiv.org/abs/2208.05988
Publikováno v:
Astronomische Nachrichten. 342:198-204
We derive closed formulas for the mass and spin parameters of a Kerr black hole in terms of a minimal quantity of observational data: the red-/blue-shifts of photons emitted by massive particles (stars) moving on geodesics around the black hole and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac54cd2142b1ca9a1063fc275de317c4
https://doi.org/10.1002/asna.202113904
https://doi.org/10.1002/asna.202113904
Autor:
Roberto Cartas-Fuentevilla, Manuel de la Cruz, Alfredo Herrera-Aguilar, Jhony A. Herrera-Mendoza, Daniel F. Higuita-Borja
Publikováno v:
INSPIRE-HEP
By starting from a Perelman entropy functional and considering the Ricci-DeTurck flow equations we analyze the behaviour of Einstein-Hilbert and Einstein-Proca theories with Lifshitz geometry as functions of a flow parameter. In the former case, we f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::524fe67f2445d6754f123293c04a7d6f