454 citations · 5.4k across the 78 of their papers we have counts for
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New observational constraints on gravity through gravitational-wave astronomy
Rafael C. Nunes, Supriya Pan, Emmanuel N. Saridakis
We investigate the new observational constraints on gravity that arise from the effects of primordial gravitational waves (GWs) on the cosmic microwave background (CMB) anis…
Primordial gravitational waves in Horndeski gravity
Rafael C. Nunes, Marcio E. S. Alves, Jose C. N. de Araujo
We investigate the propagation of primordial gravitational waves within the context of the Horndeski theories, for this, we present a generalized transfer function quantifying the…
Forecast on lepton asymmetry from future CMB experiments
Alexander Bonilla, Rafael C. Nunes, Everton M. C. Abreu
We consider a cosmological lepton asymmetry in the form of neutrinos and impose new expected sensitivities on such asymmetry through the degeneracy parameter () by using some…
Cosmological implications of scale-independent energy-momentum squared gravity: Pseudo nonminimal interactions in dark matter and relativistic relics
Ozgur Akarsu, Nihan Katirci, Suresh Kumar +2
In this paper, we introduce a scale-independent energy-momentum squared gravity (EMSG) that allows different gravitational couplings for different types of sources, which may lead…
Tale of stable interacting dark energy, observational signatures, and the tension
Weiqiang Yang, Supriya Pan, Eleonora Di Valentino +3
We investigate the observational consequences of a novel class of stable interacting dark energy (IDE) models, featuring interactions between dark matter (DM) and dark energy (DE).…
Cosmological bounds on dark matter-photon coupling
Suresh Kumar, Rafael C. Nunes, Santosh Kumar Yadav
We investigate an extension of the CDM model where the dark matter (DM) is coupled to photons, inducing a nonconservation of the numbers of particles for both species, where the…
Structure formation in gravity and a solution for tension
Rafael C. Nunes
We investigate the evolution of scalar perturbations in teleparallel gravity and its effects on the cosmic microwave background (CMB) anisotropy. The gravity generali…