$\Lambda_{\rm s}$CDM cosmology from a type-II minimally modified gravity

Autor: Akarsu, Ozgur, De Felice, Antonio, Di Valentino, Eleonora, Kumar, Suresh, Nunes, Rafael C., Ozulker, Emre, Vazquez, J. Alberto, Yadav, Anita

We have successfully integrated $\Lambda_{\rm s}$CDM, a promising model for alleviating cosmological tensions, into a theoretical framework by endowing it with a specific Lagrangian from the VCDM model, a type-II minimally modified gravity. In this t

Externí odkaz: http://arxiv.org/abs/2402.07716

Relaxing cosmological tensions with a sign switching cosmological constant: Improved results with Planck, BAO, and Pantheon data

Autor: Akarsu, Ozgur, Kumar, Suresh, Ozulker, Emre, Vazquez, J. Alberto, Yadav, Anita

Publikováno v: Phys. Rev. D 108, 023513 (2023)

We present a further observational analysis of the $\Lambda_{\rm s}$CDM model proposed in Akarsu et al. [Phys. Rev. D 104, 123512 (2021)]. This model is based on the recent conjecture suggesting the Universe has transitioned from anti-de Sitter vacua

Externí odkaz: http://arxiv.org/abs/2211.05742

Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies

Autor: Abdalla, Elcio, Abellán, Guillermo Franco, Aboubrahim, Amin, Agnello, Adriano, Akarsu, Ozgur, Akrami, Yashar, Alestas, George, Aloni, Daniel, Amendola, Luca, Anchordoqui, Luis A., Anderson, Richard I., Arendse, Nikki, Asgari, Marika, Ballardini, Mario, Barger, Vernon, Basilakos, Spyros, Batista, Ronaldo C., Battistelli, Elia S., Battye, Richard, Benetti, Micol, Benisty, David, Berlin, Asher, de Bernardis, Paolo, Berti, Emanuele, Bidenko, Bohdan, Birrer, Simon, Blakeslee, John P., Boddy, Kimberly K., Bom, Clecio R., Bonilla, Alexander, Borghi, Nicola, Bouchet, François R., Braglia, Matteo, Buchert, Thomas, Buckley-Geer, Elizabeth, Calabrese, Erminia, Caldwell, Robert R., Camarena, David, Capozziello, Salvatore, Casertano, Stefano, Chen, Angela, Chen, Geoff C. F., Chen, Hsin-Yu, Chluba, Jens, Chudaykin, Anton, Cicoli, Michele, Copi, Craig J., Courbin, Fred, Cyr-Racine, Francis-Yan, Czerny, Bozena, Dainotti, Maria, D'Amico, Guido, Davis, Anne-Christine, Pérez, Javier de Cruz, de Haro, Jaume, Delabrouille, Jacques, Denton, Peter B., Dhawan, Suhail, Dienes, Keith R., Di Valentino, Eleonora, Du, Pu, Eckert, Dominique, Escamilla-Rivera, Celia, Ferté, Agnès, Finelli, Fabio, Fosalba, Pablo, Freedman, Wendy L., Frusciante, Noemi, Gaztañaga, Enrique, Giarè, William, Giusarma, Elena, Gómez-Valent, Adrià, Handley, Will, Harrison, Ian, Hart, Luke, Hazra, Dhiraj Kumar, Heavens, Alan, Heinesen, Asta, Hildebrandt, Hendrik, Hill, J. Colin, Hogg, Natalie B., Holz, Daniel E., Hooper, Deanna C., Hosseininejad, Nikoo, Huterer, Dragan, Ishak, Mustapha, Ivanov, Mikhail M., Jaffe, Andrew H., Jang, In Sung, Jedamzik, Karsten, Jimenez, Raul, Joseph, Melissa, Joudaki, Shahab, Kamionkowski, Mark, Karwal, Tanvi, Kazantzidis, Lavrentios, Keeley, Ryan E., Klasen, Michael, Komatsu, Eiichiro, Koopmans, Léon V. E., Kumar, Suresh, Lamagna, Luca, Lazkoz, Ruth, Lee, Chung-Chi, Lesgourgues, Julien, Said, Jackson Levi, Lewis, Tiffany R., L'Huillier, Benjamin, Lucca, Matteo, Maartens, Roy, Macri, Lucas M., Marfatia, Danny, Marra, Valerio, Martins, Carlos J. A. P., Masi, Silvia, Matarrese, Sabino, Mazumdar, Arindam, Melchiorri, Alessandro, Mena, Olga, Mersini-Houghton, Laura, Mertens, James, Milakovic, Dinko, Minami, Yuto, Miranda, Vivian, Moreno-Pulido, Cristian, Moresco, Michele, Mota, David F., Mottola, Emil, Mozzon, Simone, Muir, Jessica, Mukherjee, Ankan, Mukherjee, Suvodip, Naselsky, Pavel, Nath, Pran, Nesseris, Savvas, Niedermann, Florian, Notari, Alessio, Nunes, Rafael C., Colgáin, Eoin Ó, Owens, Kayla A., Ozulker, Emre, Pace, Francesco, Paliathanasis, Andronikos, Palmese, Antonella, Pan, Supriya, Paoletti, Daniela, Bergliaffa, Santiago E. Perez, Perivolaropoulos, Leadros, Pesce, Dominic W., Pettorino, Valeria, Philcox, Oliver H. E., Pogosian, Levon, Poulin, Vivian, Poulot, Gaspard, Raveri, Marco, Reid, Mark J., Renzi, Fabrizio, Riess, Adam G., Sabla, Vivian I., Salucci, Paolo, Salzano, Vincenzo, Saridakis, Emmanuel N., Sathyaprakash, Bangalore S., Schmaltz, Martin, Schöneberg, Nils, Scolnic, Dan, Sen, Anjan A., Sehgal, Neelima, Shafieloo, Arman, Sheikh-Jabbari, M. M., Silk, Joseph, Silvestri, Alessandra, Skara, Foteini, Sloth, Martin S., Soares-Santos, Marcelle, Peracaula, Joan Solà, Songsheng, Yu-Yang, Soriano, Jorge F., Staicova, Denitsa, Starkman, Glenn D., Szapudi, István, Teixeira, Elsa M., Thomas, Brooks, Treu, Tommaso, Trott, Emery, van de Bruck, Carsten, Vazquez, J. Alberto, Verde, Licia, Visinelli, Luca, Wang, Deng, Wang, Jian-Min, Wang, Shao-Jiang, Watkins, Richard, Watson, Scott, Webb, John K., Weiner, Neal, Weltman, Amanda, Witte, Samuel J., Wojtak, Radosław, Yadav, Anil Kumar, Yang, Weiqiang, Zhao, Gong-Bo, Zumalacárregui, Miguel

Publikováno v: J. High En. Astrophys. 2204, 002 (2022)

In this paper we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances between the different cosmological probes, such as the disagreement in the value of the Hubble constant $

Externí odkaz: http://arxiv.org/abs/2203.06142

Relaxing cosmological tensions with a sign switching cosmological constant

Autor: Akarsu, Ozgur, Kumar, Suresh, Ozulker, Emre, Vazquez, J. Alberto

Publikováno v: Phys. Rev. D 104, 123512 (2021)

Inspired by the recent conjecture originated from graduated dark energy that the Universe has recently transitioned from anti-de Sitter vacua to de Sitter vacua, we extend the $\Lambda$CDM model by a cosmological constant ($\Lambda_{\rm s}$) that swi

Externí odkaz: http://arxiv.org/abs/2108.09239

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