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Özgür Akarsu
Researcher at Istanbul Technical University
Publications - 71
Citations - 2409
Özgür Akarsu is an academic researcher from Istanbul Technical University. The author has contributed to research in topics: General relativity & Dark energy. The author has an hindex of 21, co-authored 66 publications receiving 1620 citations. Previous affiliations of Özgür Akarsu include Ege University & International Centre for Theoretical Physics.
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Journal ArticleDOI
Snowmass2021 - Letter of interest cosmology intertwined II: The hubble constant tension
Eleonora Di Valentino,Luis A. Anchordoqui,Özgür Akarsu,Yacine Ali-Haïmoud,Luca Amendola,Nikki Arendse,Marika Asgari,Mario Ballardini,Spyros Basilakos,Elia S. Battistelli,Micol Benetti,Simon Birrer,François R. Bouchet,Marco Bruni,Erminia Calabrese,David Camarena,Salvatore Capozziello,Angela Chen,Jens Chluba,Anton Chudaykin,Eoin Ó Colgáin,Francis-Yan Cyr-Racine,Paolo de Bernardis,Javier de Cruz Pérez,Jacques Delabrouille,Jo Dunkley,Celia Escamilla-Rivera,Agnès Ferté,Fabio Finelli,Wendy L. Freedman,Noemi Frusciante,Elena Giusarma,Adrià Gómez-Valent,Julien Guy,Will Handley,Ian Harrison,Luke Hart,Alan Heavens,Hendrik Hildebrandt,Daniel E. Holz,Dragan Huterer,Mikhail M. Ivanov,Shahab Joudaki,Shahab Joudaki,Marc Kamionkowski,Tanvi Karwal,Lloyd Knox,Suresh Kumar,Luca Lamagna,Julien Lesgourgues,Matteo Lucca,Valerio Marra,Silvia Masi,Sabino Matarrese,Arindam Mazumdar,Alessandro Melchiorri,Olga Mena,Laura Mersini-Houghton,Vivian Miranda,Cristian Moreno-Pulido,David F. Mota,J. Muir,Ankan Mukherjee,Florian Niedermann,Alessio Notari,Rafael C. Nunes,Francesco Pace,Andronikos Paliathanasis,Antonella Palmese,Supriya Pan,Daniela Paoletti,Valeria Pettorino,F. Piacentini,Vivian Poulin,Marco Raveri,Adam G. Riess,Vincenzo Salzano,Emmanuel N. Saridakis,Anjan A. Sen,Arman Shafieloo,Anowar J. Shajib,Joseph Silk,Joseph Silk,Alessandra Silvestri,Martin S. Sloth,Tristan L. Smith,Joan Solà Peracaula,Carsten van de Bruck,Licia Verde,Luca Visinelli,Benjamin D. Wandelt,Deng Wang,Jian-Min Wang,Anil Kumar Yadav,Weiqiang Yang +94 more
TL;DR: In this article, the authors focus on the 4.4σ tension between the Planck estimate of the Hubble constant H0 and the SH0ES collaboration measurements and discuss how the next decade's experiments will be crucial.
Journal ArticleDOI
LRS Bianchi type I models with anisotropic dark energy and constant deceleration parameter
Özgür Akarsu,Can Battal Kilinç +1 more
TL;DR: In this paper, the authors examined locally rotationally symmetric Bianchi type I cosmological models in the presence of dynamically anisotropic dark energy and perfect fluid, where the conservation of the energy-momentum tensor of the DE is assumed to consist of two separately additive conserved parts.
Journal ArticleDOI
Bianchi type III models with anisotropic dark energy
Özgür Akarsu,Can Battal Kilinç +1 more
TL;DR: In this article, the general form of the anisotropy parameter of the expansion for Bianchi type-III metric is obtained in the presence of a single diagonal imperfect fluid with a dynamically anisotropic equation of state parameter and a dynamical energy density in general relativity.
Journal ArticleDOI
Cosmology intertwined III: fσ8 and S8
Eleonora Di Valentino,Luis A. Anchordoqui,Özgür Akarsu,Yacine Ali-Haïmoud,Luca Amendola,Nikki Arendse,Marika Asgari,Mario Ballardini,Spyros Basilakos,Elia S. Battistelli,Micol Benetti,Simon Birrer,François R. Bouchet,Marco Bruni,Erminia Calabrese,David Camarena,Salvatore Capozziello,Angela Chen,Jens Chluba,Anton Chudaykin,Eoin Ó Colgáin,Francis-Yan Cyr-Racine,Paolo de Bernardis,Javier de Cruz Pérez,Jacques Delabrouille,Jo Dunkley,Celia Escamilla-Rivera,Agnès Ferté,Fabio Finelli,Wendy L. Freedman,Noemi Frusciante,Elena Giusarma,Adrià Gómez-Valent,Will Handley,Ian Harrison,Luke Hart,Alan Heavens,Hendrik Hildebrandt,Daniel E. Holz,Dragan Huterer,Mikhail M. Ivanov,Shahab Joudaki,Marc Kamionkowski,Tanvi Karwal,Lloyd Knox,Suresh Kumar,Luca Lamagna,Julien Lesgourgues,Matteo Lucca,Valerio Marra,Silvia Masi,Sabino Matarrese,Arindam Mazumdar,Alessandro Melchiorri,Olga Mena,Laura Mersini-Houghton,Vivian Miranda,Cristian Moreno-Pulido,David F. Mota,J. Muir,Ankan Mukherjee,Florian Niedermann,Alessio Notari,Rafael C. Nunes,Francesco Pace,Andronikos Paliathanasis,Antonella Palmese,Supriya Pan,Daniela Paoletti,Valeria Pettorino,F. Piacentini,Vivian Poulin,Marco Raveri,Adam G. Riess,Vincenzo Salzano,Emmanuel N. Saridakis,Anjan A. Sen,Arman Shafieloo,Anowar J. Shajib,Joseph Silk,Joseph Silk,Alessandra Silvestri,Martin S. Sloth,Tristan L. Smith,Joan Solà Peracaula,Carsten van de Bruck,Licia Verde,Luca Visinelli,Benjamin D. Wandelt,Deng Wang,Jian-Min Wang,Anil Kumar Yadav,Weiqiang Yang +92 more
TL;DR: In this article, the authors focus on the tension between Planck data and weak lensing measurements and redshift surveys, and discuss the importance of trying to fit multiple cosmological datasets with complete physical models, rather than fitting individual datasets with a few handpicked theoretical parameters.
Journal ArticleDOI
Cosmological models with linearly varying deceleration parameter
Özgür Akarsu,Tekin Dereli +1 more
TL;DR: In this paper, a new law for the deceleration parameter that varies linearly with time and covers Berman's law where it is constant is proposed, which is consistent with recent cosmological observations.