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1. Prospects for Fundamental Physics with LISA

Author

Barausse, Enrico, Berti, Emanuele, Hertog, Thomas, Hughes, Scott A., Jetzer, Philippe, Pani, Paolo, Sotiriou, Thomas P., Tamanini, Nicola, Witek, Helvi, Yagi, Kent, Yunes, Nicolas, Abdelsalhin, T., Achucarro, A., Aelst, K. V., Afshordi, N., Akcay, S., Annulli, L., Arun, K. G., Ayuso, I., Baibhav, V., Baker, T., Bantilan, H., Barreiro, T., Barrera-Hinojosa, C., Bartolo, N., Baumann, D., Belgacem, E., Bellini, E., Bellomo, N., Ben-Dayan, I., Bena, I., Benkel, R., Bergshoefs, E., Bernard, L., Bernuzzi, S., Bertacca, D., Besancon, M., Beutler, F., Beyer, F., Bhagwat, S., Bicak, J., Biondini, S., Bize, S., Blas, D., Boehmer, C., Boller, K., Bonga, B., Bonvin, C., Bosso, P., Bozzola, G., Brax, P., Breitbach, M., Brito, R., Bruni, M., Brügmann, B., Bulten, H., Buonanno, A., Burke, A. O., Burko, L. M., Burrage, C., Cabral, F., Calcagni, G., Caprini, C., Cárdenas-Avendaño, A., Celoria, M., Chatziioannou, K., Chernoff, D., Clough, K., Coates, A., Comelli, D., Compère, G., Croon, D., Cruces, D., Cusin, G., Dalang, C., Danielsson, U., Das, S., Datta, S., de Boer, J., De Luca, V., De Rham, C., Desjacques, V., Destounis, K., Di Filippo, F., Dima, A., Dimastrogiovanni, E., Dolan, S., Doneva, D., Duque, F., Durrer, R., East, W., Easther, R., Elley, M., Ellis, J. R., Emparan, R., Ezquiaga, J. M., Fairbairn, M., Fairhurst, S., Farmer, H. F., Fasiello, M. R., Ferrari, V., Ferreira, P. G., Ficarra, G., Figueras, P., Fisenko, S., Foffa, S., Franchini, N., Franciolini, G., Fransen, K., Frauendiener, J., Frusciante, N., Fujita, R., Gair, J., Ganz, A., Garcia, P., Garcia-Bellido, J., Garriga, J., Geiger, R., Geng, C., Gergely, L. Á., Germani, C., Gerosa, D., Giddings, S. B., Gourgoulhon, E., Grandclement, P., Graziani, L., Gualtieri, L., Haggard, D., Haino, S., Halburd, R., Han, W. -B., Hawken, A. J., Hees, A., Heng, I. S., Hennig, J., Herdeiro, C., Hervik, S., Holten, J. v., Hoyle, C. J. D., Hu, Y., Hull, M., Ikeda, T., Isi, M., Jenkins, A., Julié, F., Kajfasz, E., Kalaghatgi, C., Kaloper, N., Kamionkowski, M., Karas, V., Kastha, S., Keresztes, Z., Kidder, L., Kimpson, T., Klein, A., Klioner, S., Kokkotas, K., Kolesova, H., Kolkowitz, S., Kopp, J., Koyama, K., Krishnendu, N. V., Kroon, J. A. V., Kunz, M., Lahav, O., Landragin, A., Lang, R. N., Poncin-Lafitte, C. Le, Lemos, J., Li, B., Liberati, S., Liguori, M., Lin, F., Liu, G., Lobo, F. S. N., Loll, R., Lombriser, L., Lovelace, G., Macedo, R. P., Madge, E., Maggio, E., Maggiore, M., Marassi, S., Marcoccia, P., Markakis, C., Martens, W., Martinovic, K., Martins, C. J. A. P., Maselli, A., Mastrogiovanni, S., Matarrese, S., Matas, A., Mavromatos, N. E., Mazumdar, A., Meerburg, P. D., Megias, E., Miller, J., Mimoso, J. P., Mittnacht, L., Montero, M. M., Moore, B., Martin-Moruno, P., Musco, I., Nakano, H., Nampalliwar, S., Nardini, G., Nielsen, A., Novák, J., Nunes, N. J., Okounkova, M., Oliveri, R., Oppizzi, F., Orlando, G., Oshita, N., Pappas, G., Paschalidis, V., Peiris, H., Peloso, M., Perkins, S., Pettorino, V., Pikovski, I., Pilo, L., Podolsky, J., Pontzen, A., Prabhat, S., Pratten, G., Prokopec, T., Prouza, M., Qi, H., Raccanelli, A., Rajantie, A., Randall, L., Raposo, G., Raymond, V., Renaux-Petel, S., Ricciardone, A., Riotto, A., Robson, T., Roest, D., Rollo, R., Rosofsky, S., Ruan, J. J., Rubiera-García, D., Ruiz, M., Rusu, M., Sabatie, F., Sago, N., Sakellariadou, M., Saltas, I. D., Sberna, L., Sathyaprakash, B., Scheel, M., Schmidt, P., Schutz, B., Schwaller, P., Shao, L., Shapiro, S. L., Shoemaker, D., Silva, A. d., Simpson, C., Sopuerta, C. F., Spallicci, A., Stefanek, B. A., Stein, L., Stergioulas, N., Stott, M., Sutton, P., Svarc, R., Tagoshi, H., Tahamtan, T., Takeda, H., Tanaka, T., Tantilian, G., Tasinato, G., Tattersall, O., Teukolsky, S., Tiec, A. L., Theureau, G., Trodden, M., Tolley, A., Toubiana, A., Traykova, D., Tsokaros, A., Unal, C., Unnikrishnan, C. S., Vagenas, E. C., Valageas, P., Vallisneri, M., Brand, J. Van den, Broeck, C. Van den, van de Meent, M., Vanhove, P., Varma, V., Veitch, J., Vercnocke, B., Verde, L., Vernieri, D., Vernizzi, F., Vicente, R., Vidotto, F., Visser, M., Vlah, Z., Vretinaris, S., Völkel, S., Wang, Q., Wang, Yu-Tong, Werner, M. C., Westernacher, J., Weygaert, R. v. d., Wiltshire, D., Wiseman, T., Wolf, P., Wu, K., Yamada, K., Yang, H., Yi, L., Yue, X., Yvon, D., Zilhão, M., Zimmerman, A., and Zumalacarregui, M.

Subjects
General Relativity and Quantum Cosmology
Abstract

In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental physics. Given the very broad range of topics that might be relevant to LISA, we present here a sample of what we view as particularly promising directions, based in part on the current research interests of the LISA scientific community in the area of fundamental physics. We organize these directions through a "science-first" approach that allows us to classify how LISA data can inform theoretical physics in a variety of areas. For each of these theoretical physics classes, we identify the sources that are currently expected to provide the principal contribution to our knowledge, and the areas that need further development. The classification presented here should not be thought of as cast in stone, but rather as a fluid framework that is amenable to change with the flow of new insights in theoretical physics., Comment: 22 pages, 1 figure, to appear in General Relativity and Gravitation

Published
2020
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2. Non-linear dynamics of spinning bosonic stars: formation and stability

Author

Sanchis-Gual, N., Di Giovanni, F., Zilhão, M., Herdeiro, C., Cerdá-Durán, P., Font, J. A., and Radu, E.

Subjects
General Relativity and Quantum Cosmology, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Theory
Abstract

We perform numerical evolutions of the fully non-linear Einstein-(complex, massive)Klein-Gordon and Einstein-(complex)Proca systems, to assess the formation and stability of spinning bosonic stars. In the scalar/vector case these are known as boson/Proca stars. Firstly, we consider the formation scenario. Starting with constraint-obeying initial data, describing a dilute, axisymmetric cloud of spinning scalar/Proca field, gravitational collapse towards a spinning star occurs, via gravitational cooling. In the scalar case the formation is transient, even for a non-perturbed initial cloud; a non-axisymmetric instability always develops ejecting all the angular momentum from the scalar star. In the Proca case, by contrast, no instability is observed and the evolutions are compatible with the formation of a spinning Proca star. Secondly, we address the stability of an existing star, a stationary solution of the field equations. In the scalar case, a non-axisymmetric perturbation develops collapsing the star to a spinning black hole. No such instability is found in the Proca case, where the star survives large amplitude perturbations; moreover, some excited Proca stars decay to, and remain as, fundamental states. Our analysis suggests bosonic stars have different stability properties in the scalar/vector case, which we tentatively relate to their toroidal/spheroidal morphology. A parallelism with instabilities of spinning fluid stars is briefly discussed., Comment: 5+3 pages, 4+1 figures; movies of the numerical simulations reported can be found in http://gravitation.web.ua.pt/node/1740

Published
2019
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3. Mass inflation in a D dimensional Reissner-Nordstrom black hole: a hierarchy of particle accelerators ?

Author

Avelino, P. P., Hamilton, A. J. S., Herdeiro, C. A. R., and Zilhao, M.

Subjects
General Relativity and Quantum Cosmology, High Energy Physics - Theory
Abstract

We study the geometry inside the event horizon of perturbed D dimensional Reissner-Nordstrom-(A)dS type black holes showing that, similarly to the four dimensional case, mass inflation also occurs for D>4. First, using the homogeneous approximation, we show that an increase of the number of spatial dimensions contributes to a steeper variation of the metric coefficients with the areal radius and that the phenomenon is insensitive to the cosmological constant in leading order. Then, using the code reported in arXiv:0904.2669 [gr-qc] adapted to D dimensions, we perform fully non-linear numerical simulations. We perturb the black hole with a compact pulse adapting the pulse amplitude such that the relative variation of the black hole mass is the same in all dimensions, and determine how the black hole interior evolves under the perturbation. We qualitatively confirm that the phenomenon is similar to four dimensions as well as the behaviour observed in the homogeneous approximation. We speculate about the formation of black holes inside black holes triggered by mass inflation, and about possible consequences of this scenario., Comment: 8 pages, 6 figures

Published
2011
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5. New horizons for fundamental physics with LISA

Author

K. G. Arun, Enis Belgacem, Robert Benkel, Laura Bernard, Emanuele Berti, Gianfranco Bertone, Marc Besancon, Diego Blas, Christian G. Böhmer, Richard Brito, Gianluca Calcagni, Alejandro Cardenas-Avendaño, Katy Clough, Marco Crisostomi, Valerio De Luca, Daniela Doneva, Stephanie Escoffier, José María Ezquiaga, Pedro G. Ferreira, Pierre Fleury, Stefano Foffa, Gabriele Franciolini, Noemi Frusciante, Juan García-Bellido, Carlos Herdeiro, Thomas Hertog, Tanja Hinderer, Philippe Jetzer, Lucas Lombriser, Elisa Maggio, Michele Maggiore, Michele Mancarella, Andrea Maselli, Sourabh Nampalliwar, David Nichols, Maria Okounkova, Paolo Pani, Vasileios Paschalidis, Alvise Raccanelli, Lisa Randall, Sébastien Renaux-Petel, Antonio Riotto, Milton Ruiz, Alexander Saffer, Mairi Sakellariadou, Ippocratis D. Saltas, B. S. Sathyaprakash, Lijing Shao, Carlos F. Sopuerta, Thomas P. Sotiriou, Nikolaos Stergioulas, Nicola Tamanini, Filippo Vernizzi, Helvi Witek, Kinwah Wu, Kent Yagi, Stoytcho Yazadjiev, Nicolás Yunes, Miguel Zilhão, Niayesh Afshordi, Marie-Christine Angonin, Vishal Baibhav, Enrico Barausse, Tiago Barreiro, Nicola Bartolo, Nicola Bellomo, Ido Ben-Dayan, Eric A. Bergshoeff, Sebastiano Bernuzzi, Daniele Bertacca, Swetha Bhagwat, Béatrice Bonga, Lior M. Burko, Geoffrey Compére, Giulia Cusin, Antonio da Silva, Saurya Das, Claudia de Rham, Kyriakos Destounis, Ema Dimastrogiovanni, Francisco Duque, Richard Easther, Hontas Farmer, Matteo Fasiello, Stanislav Fisenko, Kwinten Fransen, Jörg Frauendiener, Jonathan Gair, László Árpád Gergely, Davide Gerosa, Leonardo Gualtieri, Wen-Biao Han, Aurelien Hees, Thomas Helfer, Jörg Hennig, Alexander C. Jenkins, Eric Kajfasz, Nemanja Kaloper, Vladimír Karas, Bradley J. Kavanagh, Sergei A. Klioner, Savvas M. Koushiappas, Macarena Lagos, Christophe Le Poncin-Lafitte, Francisco S. N. Lobo, Charalampos Markakis, Prado Martín-Moruno, C. J. A. P. Martins, Sabino Matarrese, Daniel R. Mayerson, José P. Mimoso, Johannes Noller, Nelson J. Nunes, Roberto Oliveri, Giorgio Orlando, George Pappas, Igor Pikovski, Luigi Pilo, Jiří Podolský, Geraint Pratten, Tomislav Prokopec, Hong Qi, Saeed Rastgoo, Angelo Ricciardone, Rocco Rollo, Diego Rubiera-Garcia, Olga Sergijenko, Stuart Shapiro, Deirdre Shoemaker, Alessandro Spallicci, Oleksandr Stashko, Leo C. Stein, Gianmassimo Tasinato, Andrew J. Tolley, Elias C. Vagenas, Stefan Vandoren, Daniele Vernieri, Rodrigo Vicente, Toby Wiseman, Valery I. Zhdanov, Miguel Zumalacárregui, UAM. Departamento de Física Teórica, Arun, K, Belgacem, E, Benkel, R, Bernard, L, Berti, E, Bertone, G, Besancon, M, Blas, D, Bohmer, C, Brito, R, Calcagni, G, Cardenas-Avendano, A, Clough, K, Crisostomi, M, De Luca, V, Doneva, D, Escoffier, S, Ezquiaga, J, Ferreira, P, Fleury, P, Foffa, S, Franciolini, G, Frusciante, N, Garcia-Bellido, J, Herdeiro, C, Hertog, T, Hinderer, T, Jetzer, P, Lombriser, L, Maggio, E, Maggiore, M, Mancarella, M, Maselli, A, Nampalliwar, S, Nichols, D, Okounkova, M, Pani, P, Paschalidis, V, Raccanelli, A, Randall, L, Renaux-Petel, S, Riotto, A, Ruiz, M, Saffer, A, Sakellariadou, M, Saltas, I, Sathyaprakash, B, Shao, L, Sopuerta, C, Sotiriou, T, Stergioulas, N, Tamanini, N, Vernizzi, F, Witek, H, Wu, K, Yagi, K, Yazadjiev, S, Yunes, N, Zilhao, M, Afshordi, N, Angonin, M, Baibhav, V, Barausse, E, Barreiro, T, Bartolo, N, Bellomo, N, Ben-Dayan, I, Bergshoeff, E, Bernuzzi, S, Bertacca, D, Bhagwat, S, Bonga, B, Burko, L, Compere, G, Cusin, G, da Silva, A, Das, S, de Rham, C, Destounis, K, Dimastrogiovanni, E, Duque, F, Easther, R, Farmer, H, Fasiello, M, Fisenko, S, Fransen, K, Frauendiener, J, Gair, J, Gergely, L, Gerosa, D, Gualtieri, L, Han, W, Hees, A, Helfer, T, Hennig, J, Jenkins, A, Kajfasz, E, Kaloper, N, Karas, V, Kavanagh, B, Klioner, S, Koushiappas, S, Lagos, M, Poncin-Lafitte, C, Lobo, F, Markakis, C, Martin-Moruno, P, Martins, C, Matarrese, S, Mayerson, D, Mimoso, J, Noller, J, Nunes, N, Oliveri, R, Orlando, G, Pappas, G, Pikovski, I, Pilo, L, Podolsky, J, Pratten, G, Prokopec, T, Qi, H, Rastgoo, S, Ricciardone, A, Rollo, R, Rubiera-Garcia, D, Sergijenko, O, Shapiro, S, Shoemaker, D, Spallicci, A, Stashko, O, Stein, L, Tasinato, G, Tolley, A, Vagenas, E, Vandoren, S, Vernieri, D, Vicente, R, Wiseman, T, Zhdanov, V, Zumalacarregui, M, Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Département de Physique des Particules (ex SPP) (DPhP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique Théorique [Palaiseau] (CPHT), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des deux Infinis de Toulouse (L2IT), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Systèmes de Référence Temps Espace (SYRTE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique et chimie de l'environnement (LPCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), LISA, Arun, K. G., Belgacem, Eni, Benkel, Robert, Bernard, Laura, Berti, Emanuele, Bertone, Gianfranco, Besancon, Marc, Blas, Diego, B??hmer, Christian G., Brito, Richard, Calcagni, Gianluca, Cardenas-Avenda??o, Alejandro, Clough, Katy, Crisostomi, Marco, De Luca, Valerio, Doneva, Daniela, Escoffier, Stephanie, Mar??a Ezquiaga, Jos??, Ferreira, Pedro G., Fleury, Pierre, Foffa, Stefano, Franciolini, Gabriele, Frusciante, Noemi, Garc??a-Bellido, Juan, Herdeiro, Carlo, Hertog, Thoma, Hinderer, Tanja, Jetzer, Philippe, Lombriser, Luca, Maggio, Elisa, Maggiore, Michele, Mancarella, Michele, Maselli, Andrea, Nampalliwar, Sourabh, Nichols, David, Okounkova, Maria, Pani, Paolo, Paschalidis, Vasileio, Raccanelli, Alvise, Randall, Lisa, Renaux-Petel, S??bastien, Riotto, Antonio, Ruiz, Milton, Saffer, Alexander, Sakellariadou, Mairi, Saltas, Ippocratis D., Sathyaprakash, B. S., Shao, Lijing, Sopuerta, Carlos F., Sotiriou, Thomas P., Stergioulas, Nikolao, Tamanini, Nicola, Vernizzi, Filippo, Witek, Helvi, Wu, Kinwah, Yagi, Kent, Yazadjiev, Stoytcho, Yunes, Nicol??, Zilh??o, Miguel, Afshordi, Niayesh, Angonin, Marie-Christine, Baibhav, Vishal, Barausse, Enrico, Barreiro, Tiago, Bartolo, Nicola, Bellomo, Nicola, Ben-Dayan, Ido, Bergshoeff, Eric A., Bernuzzi, Sebastiano, Bertacca, Daniele, Bhagwat, Swetha, Bonga, B??atrice, Burko, Lior M., Comp??re, Geoffrey, Cusin, Giulia, da Silva, Antonio, Das, Saurya, de Rham, Claudia, Destounis, Kyriako, Dimastrogiovanni, Ema, Duque, Francisco, Easther, Richard, Farmer, Honta, Fasiello, Matteo, Fisenko, Stanislav, Fransen, Kwinten, Frauendiener, J??rg, Gair, Jonathan, rp??d Gergely, L??szl??, Gerosa, Davide, Gualtieri, Leonardo, Han, Wen-Biao, Hees, Aurelien, Helfer, Thoma, Hennig, J??rg, Jenkins, Alexander C., Kajfasz, Eric, Kaloper, Nemanja, Karas, Vladim??r, Kavanagh, Bradley J., Klioner, Sergei A., Koushiappas, Savvas M., Lagos, Macarena, Le Poncin-Lafitte, Christophe, Lobo, Francisco S. N., Markakis, Charalampo, Mart??n-Moruno, Prado, Martins, C. J. A. P., Matarrese, Sabino, Mayerson, Daniel R., Mimoso, Jos?? P., Noller, Johanne, Nunes, Nelson J., Oliveri, Roberto, Orlando, Giorgio, Pappas, George, Pikovski, Igor, Pilo, Luigi, Podolsk??, Ji????, Pratten, Geraint, Prokopec, Tomislav, Qi, Hong, Rastgoo, Saeed, Ricciardone, Angelo, Rollo, Rocco, Rubiera-Garcia, Diego, Sergijenko, Olga, Shapiro, Stuart, Shoemaker, Deirdre, Spallicci, Alessandro, Stashko, Oleksandr, Stein, Leo C., Tasinato, Gianmassimo, Tolley, Andrew J., Vagenas, Elias C., Vandoren, Stefan, Vernieri, Daniele, Vicente, Rodrigo, Wiseman, Toby, Zhdanov, Valery I., Zumalac??rregui, Miguel, National Science Foundation (US), National Aeronautics and Space Administration (US), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Generalitat de Catalunya, European Research Council, European Commission, Fundação para a Ciência e a Tecnologia (Portugal), Ministero dell'Istruzione, dell'Università e della Ricerca, Fundación 'la Caixa', Czech Science Foundation, Science and Technology Facilities Council (UK), GRAPPA (ITFA, IoP, FNWI), and Astroparticle Physics (IHEF, IoP, FNWI)

Subjects
Astrofísica, PROTOPLANET MIGRATION, Física-Modelos matemáticos, Physics and Astronomy (miscellaneous), gr-qc, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), GRAVITATIONAL-WAVES, horizon, Fundamental physic, General Relativity and Quantum Cosmology, Physics, Particles & Fields, Gravitational waves, LIGO (Observatory), Tests of general relativity, Settore FIS/05 - Astronomia e Astrofisica, DARK-MATTER, Física matemática, KOZAI MECHANISM, High Energy Physics, GENERAL-RELATIVITY, Fundamental physics, LISA, PRIMORDIAL BLACK-HOLES, Science & Technology, General Relativity and Cosmology, 83CXX, Physics, gravitation: interaction, gravitational radiation, Física, Compact, QUANTUM-GRAVITY, Physical Sciences, Astronomia, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], fundamental physics, gravitational waves, test of general relativity, MODIFIED GRAVITY, Gravitational wave, MULTIPOLE MOMENTS, HUBBLE CONSTANT
Abstract

K. G. Arun et al., The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitational interaction is both strong and dynamical. In this white paper, the Fundamental Physics Working Group of the LISA Consortium summarizes the current topics in fundamental physics where LISA observations of gravitational waves can be expected to provide key input. We provide the briefest of reviews to then delineate avenues for future research directions and to discuss connections between this working group, other working groups and the consortium work package teams. These connections must be developed for LISA to live up to its science potential in these areas., E. Berti is supported by NSF Grants No. PHY-1912550 and AST-2006538, NASA ATP Grants No. 17-ATP17-0225 and 19-ATP19-0051, NSF-XSEDE Grant No. PHY-090003, and NSF Grant PHY-20043. D. Blas is supported by a ‘Ayuda Beatriz Galindo Senior’ from the Spanish ‘Ministerio de Universidades’, grant BG20/00228. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. The research leading of to these results has received funding from the Spanish Ministry of Science and Innovation (PID2020-115845GB-I00/AEI/10.13039/501100011033). K. Clough is supported by funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 693024). A. Cárdenas-Avendaño acknowledges funding from the Fundación Universitaria Konrad Lorenz (Project 5INV1) and from Will and Kacie Snellings. M. Crisostomi and E. Barausse are supported by the European Union’s H2020 ERC Consolidator Grant “GRavity from Astrophysical to Microscopic Scales” (Grant No. GRAMS-815673). P. Fleury received the support of a fellowship from “la Caixa” Foundation (ID 100010434). The fellowship code is LCF/BQ/PI19/11690018. C. Herdeiro thanks the support of the Center for Research and Development in Mathematics and Applications (CIDMA) through the Portuguese Foundation for Science and Technology (FCT - Fundação para a Ciência e a Tecnologia), references UIDB/04106/2020 and UIDP/04106/2020, the projects PTDC/FIS-OUT/28407/2017, CERN/FIS-PAR/0027/2019, PTDC/FIS-AST/3041/2020 and the European Union’s Horizon 2020 research and innovation (RISE) programme H2020-MSCA-RISE-2017 Grant No. FunFiCO-777740. P. Pani and E. Maggio acknowledge financial support provided under the European Union’s H2020 ERC, Starting Grant agreement no. DarkGRA–757480, and under the MIUR PRIN and FARE programmes (GW-NEXT, CUP: B84I20000100001), and support from the Amaldi Research Center funded by the MIUR program “Dipartimento di Eccellenza” (CUP: B81I18001170001). N.Frusciante was supported by Fundação para a Ciência e a Tecnologia (FCT) through the research grants UIDB/04434/2020, UIDP/04434/2020, PTDC/FIS-OUT/29048/2017, CERN/FIS-PAR/0037/2019, the FCT project “CosmoTests—Cosmological tests of gravity theories beyond General Relativity” with ref. number CEECIND/00017/2018 and the FCT project “BEYLA –BEYond LAmbda” with ref. number PTDC/FIS-AST/0054/2021. L.Lombriser was supported by a Swiss National Science Foundation Professorship grant (No. 170547). S.N. acknowledges support from the Alexander von Humboldt Foundation. D.N. acknowledges support from the NSF Grant No. PHY-2011784. R.B. acknowledges financial support from FCT – Fundação para a Ciência e a Tecnologia, I.P., under the Scientific Employment Stimulus - Individual Call - 2020.00470.CEECIND. V. Paschalidis acknowledges support from NSF Grant PHY-1912619 and NASA Grant 80NSSC20K1542 to the University of Arizona. B.S.S. is supported by NSF grants No. AST-2006384 and PHY-2012083. C.F.S. is supported by contracts ESP2017-90084-P and PID2019-106515GB-I00/AEI/10.13039/501100011033 (Spanish Ministry of Science and Innovation) and 2017-SGR-1469 (AGAUR, Generalitat de Catalunya). T. P. S. acknowledges partial support from the STFC Consolidated Grant No. ST/P000703/1. M. Ruiz acknowledges support from NASA Grant 80NSSC17K0070 to the University of Illinois at Urbana-Champaign. I.D. Saltas is supported by the Czech Science Foundation GAČR, Grant No. 21-16583M. N. Stergioulas is supported by the ESA Prodex grant PEA:4000132310 “LISA Stochastic Signals Analysis Pipeline”. F.V. acknowledges partial support from CNES. K.Y. acknowledges support from NSF Grant PHY-1806776, NASA Grant 80NSSC20K0523, a Sloan Foundation Research Fellowship and the Owens Family Foundation. K.Y. would like to also acknowledge support by the COST Action GWverse CA16104 and JSPS KAKENHI Grants No. JP17H06358. N. Yunes acknowledges support from NASA Grants No. NNX16AB98G, 80NSSC17M0041 and 80NSSC18K1352, NSF Award No. 1759615, and the Simons Foundation through MPS Award Number 896696. D.D. acknowledge financial support via an Emmy Noether Research Group funded by the German Research Foundation (DFG) under grant no. DO 1771/1-1.

Published
2022

6. Testing general relativity with present and future astrophysical observations

Author

Flávio S. Coelho, Helvi Witek, Pablo Laguna, Enrico Barausse, C.P. Burgess, Juan Carlos Degollado, Burkhard Kleihaus, João G. Rosa, Hans A. Winther, Ryuichi Fujita, Richard O'Shaughnessy, S. Mirshekari, Emanuele Berti, Hirotada Okawa, Carlos A. R. Herdeiro, Tyson Littenberg, Ulrich Sperhake, Jutta Kunz, Tjonnie G. F. Li, Hector O. Silva, Saeed Kamali, James Healy, Ryan N. Lang, Paolo Pani, Daniela D. Doneva, Paulo C. C. Freire, Brett Bolen, Caixia Gao, Justin Alsing, Norbert Wex, Kostas D. Kokkotas, Michael Horbatsch, Sarah Caudill, Pedro G. Ferreira, Leo C. Stein, Vitor Cardoso, Laleh Sadeghian, Antoine Klein, Leonardo Gualtieri, Eugen Radu, Antonio De Felice, Kent Yagi, Miguel Zilhão, Davide Gerosa, Liang Chen, Marco O. P. Sampaio, Hajime Sotani, Chris Van Den Broeck, Mir Emad Aghili, Andrew Matas, Bangalore Suryanarayana Sathyaprakash, Luca Bombelli, Tessa Baker, Berti, E, Barausse, E, Cardoso, V, Gualtieri, L, Pani, P, Sperhake, U, Stein, L, Wex, N, Yagi, K, Baker, T, Burgess, C, Coelho, F, Doneva, D, De Felice, A, Ferreira, P, Freire, P, Healy, J, Herdeiro, C, Horbatsch, M, Kleihaus, B, Klein, A, Kokkotas, K, Kunz, J, Laguna, P, Lang, R, Li, T, Littenberg, T, Matas, A, Mirshekari, S, Okawa, H, Radu, E, O'Shaughnessy, R, Sathyaprakash, B, Van den Broeck, C, Winther, H, Witek, H, Aghili, M, Alsing, J, Bolen, B, Bombelli, L, Caudill, S, Chen, L, Degollado, J, Fujita, R, Gao, C, Gerosa, D, Kamali, S, Silva, H, Rosa, J, Sadeghian, L, Sampaio, M, Sotani, H, Zilhao, M, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)

Subjects
High Energy Physics - Theory, Gravity (chemistry), General Relativity, Physics and Astronomy (miscellaneous), General relativity, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, 04.80.Cc, Binary pulsar, General Relativity and Quantum Cosmology, neutron stars, Theoretical physics, symbols.namesake, High Energy Physics - Phenomenology (hep-ph), Gravitational field, general relativity, compact binaries, Einstein, black holes, gravitational waves, general relativity, relativistic astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Spacetime, 04.30.Tv, Gravitational wave, Black holes, gravitational waves, 04.40.Dg, 04.80.Nn, 3. Good health, 04.20.-q, 04.70.-s, Neutron star, High Energy Physics - Phenomenology, High Energy Physics - Theory (hep-th), [SDU]Sciences of the Universe [physics], symbols, Astrophysics - High Energy Astrophysical Phenomena, Gravitation
Abstract

One century after its formulation, Einstein's general relativity has made remarkable predictions and turned out to be compatible with all experimental tests. Most of these tests probe the theory in the weak-field regime, and there are theoretical and experimental reasons to believe that general relativity should be modified when gravitational fields are strong and spacetime curvature is large. The best astrophysical laboratories to probe strong-field gravity are black holes and neutron stars, whether isolated or in binary systems. We review the motivations to consider extensions of general relativity. We present a (necessarily incomplete) catalog of modified theories of gravity for which strong-field predictions have been computed and contrasted to Einstein's theory, and we summarize our current understanding of the structure and dynamics of compact objects in these theories. We discuss current bounds on modified gravity from binary pulsar and cosmological observations, and we highlight the potential of future gravitational wave measurements to inform us on the behavior of gravity in the strong-field regime., 188 pages, 46 figures, 6 tables, 903 references. Matches version published in Classical and Quantum Gravity. Supplementary data files available at http://www.phy.olemiss.edu/~berti/research/ and http://centra.tecnico.ulisboa.pt/network/grit/files/

Published
2015

7. Black holes, gravitational waves and fundamental physics: a roadmap

Author

Leor Barack, Vitor Cardoso, Samaya Nissanke, Thomas P Sotiriou, Abbas Askar, Chris Belczynski, Gianfranco Bertone, Edi Bon, Diego Blas, Richard Brito, Tomasz Bulik, Clare Burrage, Christian T Byrnes, Chiara Caprini, Masha Chernyakova, Piotr Chruściel, Monica Colpi, Valeria Ferrari, Daniele Gaggero, Jonathan Gair, Juan García-Bellido, S F Hassan, Lavinia Heisenberg, Martin Hendry, Ik Siong Heng, Carlos Herdeiro, Tanja Hinderer, Assaf Horesh, Bradley J Kavanagh, Bence Kocsis, Michael Kramer, Alexandre Le Tiec, Chiara Mingarelli, Germano Nardini, Gijs Nelemans, Carlos Palenzuela, Paolo Pani, Albino Perego, Edward K Porter, Elena M Rossi, Patricia Schmidt, Alberto Sesana, Ulrich Sperhake, Antonio Stamerra, Leo C Stein, Nicola Tamanini, Thomas M Tauris, L Arturo Urena-López, Frederic Vincent, Marta Volonteri, Barry Wardell, Norbert Wex, Kent Yagi, Tiziano Abdelsalhin, Miguel Ángel Aloy, Pau Amaro-Seoane, Lorenzo Annulli, Manuel Arca-Sedda, Ibrahima Bah, Enrico Barausse, Elvis Barakovic, Robert Benkel, Charles L Bennett, Laura Bernard, Sebastiano Bernuzzi, Christopher P L Berry, Emanuele Berti, Miguel Bezares, Jose Juan Blanco-Pillado, Jose Luis Blázquez-Salcedo, Matteo Bonetti, Mateja Bošković, Zeljka Bosnjak, Katja Bricman, Bernd Brügmann, Pedro R Capelo, Sante Carloni, Pablo Cerdá-Durán, Christos Charmousis, Sylvain Chaty, Aurora Clerici, Andrew Coates, Marta Colleoni, Lucas G Collodel, Geoffrey Compère, William Cook, Isabel Cordero-Carrión, Miguel Correia, Álvaro de la Cruz-Dombriz, Viktor G Czinner, Kyriakos Destounis, Kostas Dialektopoulos, Daniela Doneva, Massimo Dotti, Amelia Drew, Christopher Eckner, James Edholm, Roberto Emparan, Recai Erdem, Miguel Ferreira, Pedro G Ferreira, Andrew Finch, Jose A Font, Nicola Franchini, Kwinten Fransen, Dmitry Gal’tsov, Apratim Ganguly, Davide Gerosa, Kostas Glampedakis, Andreja Gomboc, Ariel Goobar, Leonardo Gualtieri, Eduardo Guendelman, Francesco Haardt, Troels Harmark, Filip Hejda, Thomas Hertog, Seth Hopper, Sascha Husa, Nada Ihanec, Taishi Ikeda, Amruta Jaodand, Philippe Jetzer, Xisco Jimenez-Forteza, Marc Kamionkowski, David E Kaplan, Stelios Kazantzidis, Masashi Kimura, Shiho Kobayashi, Kostas Kokkotas, Julian Krolik, Jutta Kunz, Claus Lämmerzahl, Paul Lasky, José P S Lemos, Jackson Levi Said, Stefano Liberati, Jorge Lopes, Raimon Luna, Yin-Zhe Ma, Elisa Maggio, Alberto Mangiagli, Marina Martinez Montero, Andrea Maselli, Lucio Mayer, Anupam Mazumdar, Christopher Messenger, Brice Ménard, Masato Minamitsuji, Christopher J Moore, David Mota, Sourabh Nampalliwar, Andrea Nerozzi, David Nichols, Emil Nissimov, Martin Obergaulinger, Niels A Obers, Roberto Oliveri, George Pappas, Vedad Pasic, Hiranya Peiris, Tanja Petrushevska, Denis Pollney, Geraint Pratten, Nemanja Rakic, Istvan Racz, Miren Radia, Fethi M Ramazanoğlu, Antoni Ramos-Buades, Guilherme Raposo, Marek Rogatko, Roxana Rosca-Mead, Dorota Rosinska, Stephan Rosswog, Ester Ruiz-Morales, Mairi Sakellariadou, Nicolás Sanchis-Gual, Om Sharan Salafia, Anuradha Samajdar, Alicia Sintes, Majda Smole, Carlos Sopuerta, Rafael Souza-Lima, Marko Stalevski, Nikolaos Stergioulas, Chris Stevens, Tomas Tamfal, Alejandro Torres-Forné, Sergey Tsygankov, Kıvanç İ Ünlütürk, Rosa Valiante, Maarten van de Meent, José Velhinho, Yosef Verbin, Bert Vercnocke, Daniele Vernieri, Rodrigo Vicente, Vincenzo Vitagliano, Amanda Weltman, Bernard Whiting, Andrew Williamson, Helvi Witek, Aneta Wojnar, Kadri Yakut, Haopeng Yan, Stoycho Yazadjiev, Gabrijela Zaharijas, Miguel Zilhão, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut des Hautes Etudes Scientifiques (IHES), IHES, Laboratoire Univers et Théories (LUTH (UMR_8102)), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut des Hautes Études Scientifiques (IHES), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Barack, L., Cardoso, V., Nissanke, S., Sotiriou, T. P., Askar, A., Belczynski, C., Bertone, G., Bon, E., Blas, D., Brito, R., Bulik, T., Burrage, C., Byrnes, C. T., Caprini, C., Chernyakova, M., Chrusciel, P., Colpi, M., Ferrari, V., Gaggero, D., Gair, J., Garcia-Bellido, J., Hassan, S. F., Heisenberg, L., Hendry, M., Heng, I. S., Herdeiro, C., Hinderer, T., Horesh, A., Kavanagh, B. J., Kocsis, B., Kramer, M., Le Tiec, A., Mingarelli, C., Nardini, G., Nelemans, G., Palenzuela, C., Pani, P., Perego, A., Porter, E. K., Rossi, E. M., Schmidt, P., Sesana, A., Sperhake, U., Stamerra, A., Stein, L. C., Tamanini, N., Tauris, T. M., Urena-Lopez, L. A., Vincent, F., Volonteri, M., Wardell, B., Wex, N., Yagi, K., Abdelsalhin, T., Aloy, M. A., Amaro-Seoane, P., Annulli, L., Arca-Sedda, M., Bah, I., Barausse, E., Barakovic, E., Benkel, R., Bennett, C. L., Bernard, L., Bernuzzi, S., Berry, C. P. L., Berti, E., Bezares, M., Blanco-Pillado, J. J., Blazquez-Salcedo, J. L., Bonetti, M., Boskovic, M., Bosnjak, Z., Bricman, K., Brugmann, B., Capelo, P. R., Carloni, S., Cerda-Duran, P., Charmousis, C., Chaty, S., Clerici, A., Coates, A., Colleoni, M., Collodel, L. G., Compere, G., Cook, W., Cordero-Carrion, I., Correia, M., De La Cruz-Dombriz, A., Czinner, V. G., Destounis, K., Dialektopoulos, K., Doneva, D., Dotti, M., Drew, A., Eckner, C., Edholm, J., Emparan, R., Erdem, R., Ferreira, M., Ferreira, P. G., Finch, A., Font, J. A., Franchini, N., Fransen, K., Gal'Tsov, D., Ganguly, A., Gerosa, D., Glampedakis, K., Gomboc, A., Goobar, A., Gualtieri, L., Guendelman, E., Haardt, F., Harmark, T., Hejda, F., Hertog, T., Hopper, S., Husa, S., Ihanec, N., Ikeda, T., Jaodand, A., Jetzer, P., Jimenez-Forteza, X., Kamionkowski, M., Kaplan, D. E., Kazantzidis, S., Kimura, M., Kobayashi, S., Kokkotas, K., Krolik, J., Kunz, J., Lammerzahl, C., Lasky, P., Lemos, J. P. S., Levi Said, J., Liberati, S., Lopes, J., Luna, R., Ma, Y. -Z., Maggio, E., Mangiagli, A., Montero, M. M., Maselli, A., Mayer, L., Mazumdar, A., Messenger, C., Menard, B., Minamitsuji, M., Moore, C. J., Mota, D., Nampalliwar, S., Nerozzi, A., Nichols, D., Nissimov, E., Obergaulinger, M., Obers, N. A., Oliveri, R., Pappas, G., Pasic, V., Peiris, H., Petrushevska, T., Pollney, D., Pratten, G., Rakic, N., Racz, I., Radia, M., Ramazanoglu, F. M., Ramos-Buades, A., Raposo, G., Rogatko, M., Rosca-Mead, R., Rosinska, D., Rosswog, S., Ruiz-Morales, E., Sakellariadou, M., Sanchis-Gual, N., Sharan Salafia, O., Samajdar, A., Sintes, A., Smole, M., Sopuerta, C., Souza-Lima, R., Stalevski, M., Stergioulas, N., Stevens, C., Tamfal, T., Torres-Forne, A., Tsygankov, S., I Unluturk, Ki., Valiante, R., Van De Meent, M., Velhinho, J., Verbin, Y., Vercnocke, B., Vernieri, D., Vicente, R., Vitagliano, V., Weltman, A., Whiting, B., Williamson, A., Witek, H., Wojnar, A., Yakut, K., Yan, H., Yazadjiev, S., Zaharijas, G., Zilhao, M., Gravitation and Astroparticle Physics Amsterdam, GRAPPA (ITFA, IoP, FNWI), IoP (FNWI), High Energy Astrophys. & Astropart. Phys (API, FNWI), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Sperhake, Ulrich [0000-0002-3134-7088], Drew, Amelia [0000-0001-8252-602X], Radia, Miren [0000-0001-8861-2025], Apollo - University of Cambridge Repository, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Ege Üniversitesi, Barack, L, Cardoso, V, Nissanke, S, Sotiriou, T, Askar, A, Belczynski, C, Bertone, G, Bon, E, Blas, D, Brito, R, Bulik, T, Burrage, C, Byrnes, C, Caprini, C, Chernyakova, M, Chruściel, P, Colpi, M, Ferrari, V, Gaggero, D, Gair, J, García-Bellido, J, Hassan, S, Heisenberg, L, Hendry, M, Heng, I, Herdeiro, C, Hinderer, T, Horesh, A, Kavanagh, B, Kocsis, B, Kramer, M, Le Tiec, A, Mingarelli, C, Nardini, G, Nelemans, G, Palenzuela, C, Pani, P, Perego, A, Porter, E, Rossi, E, Schmidt, P, Sesana, A, Sperhake, U, Stamerra, A, Stein, L, Tamanini, N, Tauris, T, Urena-López, L, Vincent, F, Volonteri, M, Wardell, B, Wex, N, Yagi, K, Abdelsalhin, T, Aloy, M, Amaro-Seoane, P, Annulli, L, Arca-Sedda, M, Bah, I, Barausse, E, Barakovic, E, Benkel, R, Bennett, C, Bernard, L, Bernuzzi, S, Berry, C, Berti, E, Bezares, M, Blanco-Pillado, J, Blázquez-Salcedo, J, Bonetti, M, Bošković, M, Bosnjak, Z, Bricman, K, Brügmann, B, Capelo, P, Carloni, S, Cerdá-Durán, P, Charmousis, C, Chaty, S, Clerici, A, Coates, A, Colleoni, M, Collodel, L, Compère, G, Cook, W, Cordero-Carrión, I, Correia, M, de la Cruz-Dombriz, Á, Czinner, V, Destounis, K, Dialektopoulos, K, Doneva, D, Dotti, M, Drew, A, Eckner, C, Edholm, J, Emparan, R, Erdem, R, Ferreira, M, Ferreira, P, Finch, A, Font, J, Franchini, N, Fransen, K, Gal’Tsov, D, Ganguly, A, Gerosa, D, Glampedakis, K, Gomboc, A, Goobar, A, Gualtieri, L, Guendelman, E, Haardt, F, Harmark, T, Hejda, F, Hertog, T, Hopper, S, Husa, S, Ihanec, N, Ikeda, T, Jaodand, A, Jetzer, P, Jimenez-Forteza, X, Kamionkowski, M, Kaplan, D, Kazantzidis, S, Kimura, M, Kobayashi, S, Kokkotas, K, Krolik, J, Kunz, J, Lämmerzahl, C, Lasky, P, Lemos, J, Levi Said, J, Liberati, S, Lopes, J, Luna, R, Ma, Y, Maggio, E, Mangiagli, A, Montero, M, Maselli, A, Mayer, L, Mazumdar, A, Messenger, C, Ménard, B, Minamitsuji, M, Moore, C, Mota, D, Nampalliwar, S, Nerozzi, A, Nichols, D, Nissimov, E, Obergaulinger, M, Obers, N, Oliveri, R, Pappas, G, Pasic, V, Peiris, H, Petrushevska, T, Pollney, D, Pratten, G, Rakic, N, Racz, I, Radia, M, Ramazanoğlu, F, Ramos-Buades, A, Raposo, G, Rogatko, M, Rosca-Mead, R, Rosinska, D, Rosswog, S, Ruiz-Morales, E, Sakellariadou, M, Sanchis-Gual, N, Sharan Salafia, O, Samajdar, A, Sintes, A, Smole, M, Sopuerta, C, Souza-Lima, R, Stalevski, M, Stergioulas, N, Stevens, C, Tamfal, T, Torres-Forné, A, Tsygankov, S, İ Ünlütürk, K, Valiante, R, van de Meent, M, Velhinho, J, Verbin, Y, Vercnocke, B, Vernieri, D, Vicente, R, Vitagliano, V, Weltman, A, Whiting, B, Williamson, A, Witek, H, Wojnar, A, Yakut, K, Yan, H, Yazadjiev, S, Zaharijas, G, and Zilhão, M

Subjects
High Energy Physics - Theory, cosmological model, Physics and Astronomy (miscellaneous), Event horizon, Astronomy, 01 natural sciences, General Relativity and Quantum Cosmology, Cosmology, Physics, Particles & Fields, Gravitation, High Energy Physics::Theory, black hole: formation, Vacuum energy, black hole, general relativity, NEUTRON-STAR, GENERAL-RELATIVITY, dark energy, STAR CLUSTER SIMULATIONS, gravitational wave, QC, QB, media_common, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, astro-ph.HE, Quantum Science & Technology, [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th], hep-th, source modelling, BRANS-DICKE THEORY, fundamental physic, gravitational waves, QUASI-NORMAL MODES, Physical Sciences, birth and evolution of black holes, black holes, fundamental physics, gravitational-wave astronomy, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], HIGH-REDSHIFT FORMATION, Astrophysics - High Energy Astrophysical Phenomena, SCALAR-TENSOR THEORIES, General relativity, media_common.quotation_subject, gr-qc, Physics, Multidisciplinary, birth and evolution of black hole, FOS: Physical sciences, ST/R00045X/1, General Relativity and Quantum Cosmology (gr-qc), Astronomy & Astrophysics, gravitational radiation: direct detection, horizon, vacuum state: energy, Theoretical physics, Settore FIS/05 - Astronomia e Astrofisica, 0103 physical sciences, inflation, 010306 general physics, STFC, Science & Technology, 010308 nuclear & particles physics, Gravitational wave, Physique, gravitational radiation, RCUK, ST/P000703/1, R-PROCESS NUCLEOSYNTHESIS, Astronomie, singularity, Universe, High Energy Physics - Theory (hep-th), gravitation, black hole: model, TIMING ARRAY LIMITS, Dark energy, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], X-RAY BINARIES
Abstract

The grand challenges of contemporary fundamental physics-dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-all involve gravity as a key component. And of all gravitational phenomena, black holes stand out in their elegant simplicity, while harbouring some of the most remarkable predictions of General Relativity: event horizons, singularities and ergoregions. The hitherto invisible landscape of the gravitational Universe is being unveiled before our eyes: the historical direct detection of gravitational waves by the LIGO-Virgo collaboration marks the dawn of a new era of scientific exploration. Gravitational-wave astronomy will allow us to test models of black hole formation, growth and evolution, as well as models of gravitational-wave generation and propagation. It will provide evidence for event horizons and ergoregions, test the theory of General Relativity itself, and may reveal the existence of new fundamental fields. The synthesis of these results has the potential to radically reshape our understanding of the cosmos and of the laws of Nature. The purpose of this work is to present a concise, yet comprehensive overview of the state of the art in the relevant fields of research, summarize important open problems, and lay out a roadmap for future progress. This write-up is an initiative taken within the framework of the European Action on 'Black holes, Gravitational waves and Fundamental Physics'., SCOPUS: re.j, info:eu-repo/semantics/published

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