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Your search keyword '"Ruiz-Morales, Ester"' showing total 3 results
Start Over Author "Ruiz-Morales, Ester" Topic gravitational waves
3 results on '"Ruiz-Morales, Ester"'

1. Analysis of a subsolar-mass compact binary candidate from the second observing run of Advanced LIGO.

Author

Morrás, Gonzalo, Nuño Siles, José Francisco, García-Bellido, Juan, Ruiz Morales, Ester, Menéndez-Vázquez, Alexis, Karathanasis, Christos, Martinovic, Katarina, Phukon, Khun Sang, Clesse, Sebastien, Martínez, Mario, and Sakellariadou, Mairi

Abstract

We perform an exhaustive follow-up analysis of a subsolar-mass (SSM) gravitational wave (GW) candidate reported by Phukon et al. from the second observing run of Advanced LIGO. This candidate has a reported signal-to-noise ratio (SNR) of 8.6 and false alarm rate of 0.41 yr which are too low to claim a clear gravitational-wave origin. When improving on the search by using more accurate waveforms, extending the frequency range from 45 Hz down to 20 Hz, and removing a prominent blip glitch, we find that the posterior distribution of the network SNR lies mostly below the search value, with the 90% confidence interval being 7. 9 4 − 1. 05 + 0. 70 . Assuming that the origin of the signal is a compact binary coalescence (CBC), the secondary component is m 2 = 0. 7 6 − 0. 14 + 0. 50 M ⊙ , with m 2 < 1 M ⊙ at 84 % confidence level, suggesting an unexpectedly light neutron star or a black hole of primordial or exotic origin. The primary mass would be m 1 = 4. 7 1 − 2. 18 + 1. 57 M ⊙ , likely in the hypothesized lower mass gap and the luminosity distance is measured to be D L = 12 4 − 48 + 82 Mpc. We then probe the CBC origin hypothesis by performing the signal coherence tests, obtaining a log Bayes factor of 4. 96 ± 0. 13 for the coherent vs. incoherent hypothesis. We demonstrate the capability of performing a parameter estimation follow-up on real data for an SSM candidate with moderate SNR. The improved sensitivity of O4 and subsequent LIGO-Virgo-KAGRA observing runs could make it possible to observe similar signals, if present, with a higher SNR and more precise measurement of the parameters of the binary. [ABSTRACT FROM AUTHOR]

Published
2023
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2. Bayesian analysis of the spin distribution of LIGO/Virgo black holes.

Author

García-Bellido, Juan, Nuño Siles, José Francisco, and Ruiz Morales, Ester

Abstract

Gravitational wave detection from binary black hole (BBH) inspirals has become routine thanks to the LIGO/Virgo interferometers. The nature of these black holes remains uncertain. We study here the spin distributions of LIGO/Virgo black holes from the first catalog GWTC-1 and the first four published BBH events from run O3. We compute the Bayes evidence for several independent priors: flat, isotropic, spin-aligned and anti-aligned. We find strong evidence for low spins in all of the cases, and significant evidence for small isotropic spins versus any other distribution. When considered as a homogeneous population of black holes, these results give support to the idea that LIGO/Virgo black holes are primordial. [ABSTRACT FROM AUTHOR]

Published
2021
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3. Black holes, gravitational waves and fundamental physics: a roadmap

Author

Ramazanoğlu, Fethi Mübin (ORCID 0000-0003-3075-1457 & YÖK ID 254225), Ünlütürk, Kıvanç İbrahim, Barack, Leor, Cardoso, Vitor, Nissanke, Samaya, Sotiriou, Thomas P., Askar, Abbas, Belczynski, Chris, Bertone, Gianfranco, Bon, Edi, Blas, Diego, Brito, Richard, Bulik, Tomasz, Burrage, Clare, Byrnes, Christian T., Caprini, Chiara, Chernyakova, Masha, Chrusciel, Piotr, Colpi, Monica, Ferrari, Valeria, Gaggero, Daniele, Gair, Jonathan, Garcia-Bellido, Juan, Hassan, S. F., Heisenberg, Lavinia, Hendry, Martin, Heng, Ik Siong, Herdeiro, Carlos, Hinderer, Tanja, Horesh, Assaf, Kavanagh, Bradley J., Kocsis, Bence, Kramer, Michael, Le Tiec, Alexandre, Mingarelli, Chiara, Nardini, Germano, Nelemans, Gijs, Palenzuela, Carlos, Pani, Paolo, Perego, Albino, Porter, Edward K., Rossi, Elena M., Schmidt, Patricia, Sesana, Alberto, Sperhake, Ulrich, Stamerra, Antonio, Stein, Leo C., Tamanini, Nicola, Tauris, Thomas M., Arturo Urena-Lopez, L., Vincent, Frederic, Volonteri, Marta, Wardell, Barry, Wex, Norbert, Yagi, Kent, Abdelsalhin, Tiziano, Angel Aloy, Miguel, Amaro-Seoane, Pau, Annulli, Lorenzo, Arca-Sedda, Manuel, Bah, Ibrahima, Barausse, Enrico, Barakovic, Elvis, Benkel, Robert, Bennett, Charles L., Bernard, Laura, Bernuzzi, Sebastiano, Berry, Christopher P. L., Berti, Emanuele, Bezares, Miguel, Juan Blanco-Pillado, Jose, Blazquez-Salcedo, Jose Luis, Bonetti, Matteo, Boskovic, Mateja, Bosnjak, Zeljka, Bricman, Katja, Bruegmann, Bernd, Capelo, Pedro R., Carloni, Sante, Cerda-Duran, Pablo, Charmousis, Christos, Chaty, Sylvain, Clerici, Aurora, Coates, Andrew, Colleoni, Marta, Collodel, Lucas G., Compere, Geoffrey, Cook, William, Cordero-Carrion, Isabel, Correia, Miguel, de la Cruz-Dombriz, Alvaro, Czinner, Viktor G., Destounis, Kyriakos, Dialektopoulos, Kostas, Doneva, Daniela, Dotti, Massimo, Drew, Amelia, Eckner, Christopher, Edholm, James, Emparan, Roberto, Erdem, Recai, Ferreira, Miguel, Ferreira, Pedro G., Finch, Andrew, Font, Jose A., Franchini, Nicola, Fransen, Kwinten, Gal'tsov, Dmitry, Ganguly, Apratim, Gerosa, Davide, Glampedakis, Kostas, Gomboc, Andreja, Goobar, Ariel, Gualtieri, Leonardo, Guendelman, Eduardo, Haardt, Francesco, Harmark, Troels, Hejda, Filip, Hertog, Thomas, Hopper, Seth, Husa, Sascha, Ihanec, Nada, Ikeda, Taishi, Jaodand, Amruta, Jetzer, Philippe, Jimenez-Forteza, Xisco, Kamionkowski, Marc, Kaplan, David E., Kazantzidis, Stelios, Kimura, Masashi, Kobayashi, Shiho, Kokkotas, Kostas, Krolik, Julian, Kunz, Jutta, Laemmerzahl, Claus, Lasky, Paul, Lemos, Jose P. S., Said, Jackson Levi, Liberati, Stefano, Lopes, Jorge, Luna, Raimon, Ma, Yin-Zhe, Maggio, Elisa, Mangiagli, Alberto, Montero, Marina Martinez, Maselli, Andrea, Mayer, Lucio, Mazumdar, Anupam, Messenger, Christopher, Menard, Brice, Minamitsuji, Masato, Moore, Christopher J., Mota, David, Nampalliwar, Sourabh, Nerozzi, Andrea, Nichols, David, Nissimov, Emil, Obergaulinger, Martin, Obers, Niels A., Oliveri, Roberto, Pappas, George, Pasic, Vedad, Peiris, Hiranya, Petrushevska, Tanja, Pollney, Denis, Pratten, Geraint, Rakic, Nemanja, Racz, Istvan, Radia, Miren, Ramazanoglu, Fethi M., Ramos-Buades, Antoni, Raposo, Guilherme, Rogatko, Marek, Rosca-Mead, Roxana, Rosinska, Dorota, Rosswog, Stephan, Ruiz-Morales, Ester, Sakellariadou, Mairi, Sanchis-Gual, Nicolas, Salafia, Om Sharan, Samajdar, Anuradha, Sintes, Alicia, Smole, Majda, Sopuerta, Carlos, Souza-Lima, Rafael, Stalevski, Marko, Stergioulas, Nikolaos, Stevens, Chris, Tamfal, Tomas, Torres-Forne, Alejandro, Tsygankov, Sergey, Valiante, Rosa, van de Meent, Maarten, Velhinho, Jose, Verbin, Yosef, Vercnocke, Bert, Vernieri, Daniele, Vicente, Rodrigo, Vitagliano, Vincenzo, Weltman, Amanda, Whiting, Bernard, Williamson, Andrew, Witek, Helvi, Wojnar, Aneta, Yakut, Kadri, Yan, Haopeng, Yazadjiev, Stoycho, Zaharijas, Gabrijela, Zilhao, Miguel, College of Sciences, Graduate School of Sciences and Engineering, and Department of Physics

Subjects
General Relativity and Quantum Cosmology, Astronomy and astrophysics, Quantum science and technology, Gravitational waves, Gravitational-wave astronomy, Source modelling, Black holes, Fundamental physics, Birth and evolution of black holes, Physics, multidisciplinary, Physics, particles and fields
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., European Union (EU); European Cooperation in Science and Technology (COST); Polish National Science Center (NCN); Carl Tryggers Foundation; Science & Technology Facilities Council (STFC); European Union's H2020 ERC Consolidator Grant 'Matter and strong-field gravity: New frontiers in Einstein's theory'; European Research Council (ERC); Horizon 2020; Science & Technology Facilities Council (STFC; Ministry of Education and Science of the Republic of Serbia; Foundation for Polish Science; Austrian Science Fund (FWF); Polish National Center of Science (NCN); European Research Council (ERC); Hungarian National Research, Development, and Innovation Office; Swiss National Science Foundation (SNSF); European Union's H2020 ERC; H2020-MSCA-RISE-2015 Grant; National Science Foundation (NSF); PRACE; Simons Foundation; Ministry of Economy, Industry and Competitiveness of Spain; Slovenian Research Agency - Slovenia; EU H2020 under ERC; Spanish MINECO; Generalitat Valenciana; NASA by the Chandra X-ray Center; National Aeronautics & Space Administration (NASA); Scientific and Technological Research Council of Turkey (TÜBİTAK); H2020-MSCA-RISE-2017 Grant; Scientific and Technological Research Council of Turkey (TÜBİTAK); National Science Centre of Poland - European Union; Deutscher Akademischer Austausch Dienst (DAAD); GWAVES of ARIS-GRNET(Athens); Royal Society of London; Research Grant; Scientific and Technological Research Council of Turkey (TÜBİTAK)

Published
2019

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