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Black Hole

Lensing of space time around a black hole. At Oxford we study black holes observationally and theoretically on all size and time scales - it is some of our core work.

Credit: ALAIN RIAZUELO, IAP/UPMC/CNRS. CLICK HERE TO VIEW MORE IMAGES.

Professor Pedro Ferreira

Professor of Astrophysics

Research theme

  • Particle astrophysics & cosmology

Sub department

  • Astrophysics

Research groups

  • Beecroft Institute for Particle Astrophysics and Cosmology
pedro.ferreira@physics.ox.ac.uk
Telephone: 01865 (2)73366
Denys Wilkinson Building, room 757
  • About
  • Publications

Theoretical priors in scalar-tensor cosmologies: Thawing quintessence

PHYSICAL REVIEW D 101:6 (2020) 63508

Authors:

Carlos Garcia-Garcia, Emilio Bellini, Pedro G Ferreira, Dina Traykova, Miguel Zumalacarregui

Abstract:

© 2020 American Physical Society. The late time acceleration of the Universe can be characterized in terms of an extra, time-dependent, component of the Universe - dark energy. The simplest proposal for dark energy is a scalar-tensor theory - quintessence - which consists of a scalar field, φ, whose dynamics is solely dictated by its potential, V(φ). Such a theory can be uniquely characterized by the equation of state of the scalar field energy momentum-tensor. We find the time dependence of the equation of state for a broad family of potentials and, using this information, we propose an analytic prior distribution for the most commonly used parametrization. We show that this analytic prior can be used to accurately predict the distribution of observables for the next generation of cosmological surveys. Including the theoretical priors in the comparison with observations considerably improves the constraints on the equation of state.

Einstein in Bohemia

NATURE 579:7797 (2020) 23-24

Detecting the anisotropic astrophysical gravitational wave background in the presence of shot noise through cross-correlations

(2020)

Authors:

David Alonso, Giulia Cusin, Pedro G Ferreira, Cyril Pitrou

Anomalous decay rate of quasinormal modes

(2020)

Authors:

Macarena Lagos, Pedro G Ferreira, Oliver J Tattersall

Prospects for Fundamental Physics with LISA

(2020)

Authors:

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

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