Lines of Research

Research Divisions of the Post-Graduate Program in Cosmology (PPGCosmo) at the Federal University of Espírito Santo (UFES).

Astrofísica Galática e Extragaláctica

Astrophysics

Cosmology

Cosmology

Classical and Quantum Gravitation

Classical and Quantum Gravity

Astrophysics

In the context of relativistic astrophysics, our focus is to explore the properties of compact stars, such as neutron stars and white dwarfs, in scenarios of extreme gravity, rotation, and magnetism. We employ ray-tracing techniques in relativistic metrics to model the propagation of light and radiation around these objects, enabling a detailed analysis of phenomena such as gravitational lensing and the formation of multiple images. We also investigate the light curves resulting from electromagnetic emission, especially in situations modulated by rotation, matter accretion, and thermal pulses. With the advancement of detector sensitivity and the imminent arrival of new instruments for electromagnetic, gravitational wave, and ultra-high-energy particle observations, a new era of precise exploration of white dwarfs, neutron stars, and black holes is opening. This line of research is also dedicated to investigating fundamental questions of the new era of astronomy, including the presence of dark matter in galaxies, using rotation curves as the main observable. We also analyze small-scale anomalies, such as the cusp/core problem, missing satellites, and the “too big to fail” issue, as well as explore modified gravity models like MOND and TeVeS. On extragalactic scales, we study the dynamics of galaxies in clusters and the role of dark matter and dark energy in virialized structures, developing numerical and semi-analytical simulations for a deeper understanding of these phenomena. With multi-messenger astronomy, we have significantly advanced our understanding of gravitational waves, compact objects, and high-energy physics. Compact stars are established as ideal laboratories for investigating the micro and macrophysics of superdense matter. Multi-messenger observations, encompassing X-rays, gamma rays, radio waves, gravitational waves, and neutrinos, have been essential in expanding our understanding of the structure of these extreme objects. Since the discovery of pulsars, our understanding of these bodies has deepened, although many mysteries still persist. Pulsars remain fundamental for studying physics under extreme conditions, characterized by intense gravity, high magnetic fields, and elevated densities. Our project focuses on investigating the structure of compact stars, analyzing the effects of intense magnetic fields, high rotation, matter accretion, and electromagnetic counterparts of gravitational wave events. Our goal is to improve the understanding of the observed phenomenology and the theoretical mechanisms that underpin these extreme phenomena.

Researchers

  • Professors
    • Prof 1.
    • Prof 2.
  • Postdocs
    • Postdoc 1
    • Postdoc 2
  • PhD Students
    • Student 1
    • Student 2

Cosmology

In this line of research, we address the issues of dark matter and dark energy by investigating models of modified gravity, models with non-canonical scalar fields, backreaction models, interaction models in the dark sector, and unified dark matter/energy models. We seek to identify characteristic signatures for each class of these models and aim to discriminate between them using observational data. The goal is to obtain more robust evidence regarding the nature of dark matter and dark energy. The tests of theoretical cosmological models using the different available observational data include the CMB, the correlation of large-scale structures, weak lensing, and correlations between these observables. The analysis of modified gravity theories encompasses Horndeski gravity, f(R) theories, non-conservative theories, and gravitational models with torsion and Weyl gravity. This research line also involves studying cosmological inflation and its observational signatures in the CMB. In particular, we investigate extensions of the Starobinsky model and Linde’s alpha-attractors. Besides inflation models, we are also interested in scenarios where there is no singularity (Big Bang), but rather a bounce (bouncing universe). In this case, we focus on predictions for scalar and tensor spectra, non-Gaussianities, and their imprints on the cosmic microwave background, as well as the production of primordial particles and magnetic fields during the bounce.

Researchers

  • Professors
    • Prof 1.
    • Prof 2.
  • Postdocs
    • Postdoc 1
    • Postdoc 2
  • PhD Students
    • Student 1
    • Student 2

Classical and Quantum Gravity

This line of research encompasses general relativity, extensions of general relativity, and quantum effects in gravitation. Among the extensions of general relativity of interest are scalar-tensor theories, theories that violate the usual conservation of the energy-momentum tensor, unimodular gravity, and other more complex approaches. The study of quantum effects in gravitation is motivated by quantum field theory in curved spacetimes, quantum gravity, or different interpretations of quantum mechanics. The developments considered range from more theoretical aspects, focused on foundations and the search for new solutions, to tests using post-Newtonian expansions in the solar system or beyond, gravitational waves, and observational data from neutron stars and black holes. Active participation in international gravitational wave collaborations, particularly LIGO-Virgo-KAGRA and the Einstein Telescope, is also highlighted.

Researchers

  • Professors
    • Prof 1.
    • Prof 2.
  • Postdocs
    • Postdoc 1
    • Postdoc 2
  • PhD Students
    • Student 1
    • Student 2

Publications.

Publications associated with PPGCosmo, organized by year.
(Last Update: Oct, 5th, 2026)

Oct.
Harder, Tjark et al.
A novel, fast, and accurate code for cosmological loop calculations
2610.03466
Sep.
Zhao, Yifei et al.
AdS - de Sitter transition in interacting dark energy models
2609.38422
Sep.
da Silva Barbosa, Felipe A. et al.
Fisher and DALI posterior approximations for testing gravity with gravitational waves
2609.38399
Aug.
Buchbinder, Ioseph L. et al.
On the Renormalization in Conformal Quantum Gravity
2608.09858
Aug.
Hassan Puttasiddappa, Prajwal et al.
Ultracompact anisotropic stars and gravastars in general relativity
2608.10991
Jul.
Coimbra-Araujo, Carlos H. et al.
Ultra-high-energy particle production in binary mergers endowed with magnetic fields
2607.21385
May
Cardoso, André F.S. et al.
FR0 radio galaxy jets – I. Linking jet dynamics and high-energy emission in LEDA 55267 and LEDA 58287
2605.21320
May
Ferreira, Matheus C. et al.
Non-relativistic cosmological collider signals
2605.20102
May
Porto, Gabriel A. et al.
Nonlinear Electrodynamics in Magnetars: Systematic Effects on Radius Constraints and Timing Analysis
2605.17048
May
Fecchio, Riccardo et al.
Trace anomaly, effective approach, and gravitational potential
2605.05903
Apr.
Fazlollahi, H.R. et al.
Extended Gravity Theories from a Thermodynamic Perspective
2604.09739
Apr.
Crisman, Camilo et al.
Joint curvature and growth rate measurements with supernova peculiar velocities and the CMB
2604.06361
Apr.
Iania, William et al.
Probing Scalar-Tensor-Induced Gravitational Waves in the nHz Band: $\texttt{NANOGrav}$ and SKA
2604.13012
Apr.
Fazlollahi, H.R. et al.
Van der Waals Gravity Theory
2604.19831
Mar.
Wolney, Matheus et al.
Standard perturbation theory for interacting dark sector cosmologies. Part I. Breakdown of Einstein-de Sitter kernels
2603.12431
Feb.
Fazlollahi, H.R. et al.
A New Perspective on the Cosmological Constant and Its Core Problems
2602.19145
Feb.
Fazlollahi, H.R. et al.
Natural Emergence of LCDM Cosmology within General Relativity from Two Alternative Frameworks Without Fine-Tuning and Coincidence
2602.21305
Jan.
Ferreira, Matheus Curado et al.
Amplifying the cosmological collider with ghost spectators
2601.14413
Jan.
Thanankullaphong, Phusuda et al.
Quintom dark energy: Future attractor and phantom crossing in light of DESI DR2 observations
2601.02284
Dec.
Türker, Tunç et al.
Accurate cosmological emulator for the probability distribution function of gravitational lensing of point sources
2512.01607
Dec.
Santiago de Matos, Isabela et al.
First measurement of the Hubble constant from gravitational wave-galaxy cross-correlations
2512.15380
Dec.
Sakr, Ziad et al.
On the validity of the continuity equation in a modified gravity framework with CMB, DES 3x2pt and tomographic ISW data
2512.10802
Nov.
Dutta, Samik et al.
Gravitational waves from parabolic encounters: A study of linear and nonlinear memory
2511.01968
Oct.
Menote, Ranier et al.
Gravitational-wave and electromagnetic detections in the context of the CosmoDC2 LSST synthetic catalogue
2510.18727
Oct.
de Souza, Josiel Mendonça Soares et al.
On the use of the Derivative Approximation for Likelihoods for gravitational wave inference
2510.16955
Oct.
Menote, Ranier et al.
Probing cosmology with bright sirens from the CosmoDC2_BCO LSST synthetic catalog
2510.18752
Oct.
Valadão, E.C. et al.
Scalar-tensor theories in the Lyra geometry: invariance under local transformations of length units and the Jordan-Einstein frame conundrum
2510.08433
Sep.
Velten, Hermano et al.
Bulk viscosity from early-time thermalization of cosmic fluids in light of DESI DR2 data
2509.05148
Sep.
Bertini, Nicolas R. et al.
Renormalization Group Corrections to ΛCDM Model and Observational Consequences for H0 Tension
2509.24026
Aug.
Bertini, Nicolas R. et al.
Post-Newtonian expansion of scale-dependent gravity
2508.04810
Jul.
Richarte, Martín G. et al.
In-depth analysis of violations of the strong equivalence principle in scalarized Einstein-Gauss-Bonnet theories
2507.03983
Jun.
da Silva Barbosa, Felipe A. et al.
Line-of-sight acceleration as a test of the Galactic Yukawa potential
2506.24002
Jun.
Fortunato, Jéferson A.S. et al.
Probing cosmic curvature with fast radio bursts and DESI DR2 data
2506.01504
Jun.
Machado, Idaiane L. et al.
Quantum cosmological perturbations in bouncing models with mimetic dark matter
2506.06901
May
Hassan Puttasiddappa, Prajwal et al.
Shadows of naked singularity in Brans–Dicke gravity
2505.23204
May
Giani, Leonardo et al.
The matter with(in) CPL
2505.08467
May
Steigerwald, Heinrich et al.
What triggers type Ia supernovae: Prompt detonations from primordial black holes or companion stars?
2505.21256
Apr.
Ferreira, Alexsandre L., Jr. et al.
Bouncing completion of eternal inflation
2504.01224
Apr.
Zastrow, João V. et al.
Constraints on QCD-based equation of state of quark stars from neutron star maximum mass, radius, and tidal deformability observations
2504.08926
Apr.
Pereira, Jonas P. et al.
Dynamical Tides in Neutron Stars with First-Order Phase Transitions: The Role of the Discontinuity Mode
2504.16911
Apr.
von Marttens, Rodrigo et al.
Reconstructing the redshift evolution of Type Ia supernovae absolute magnitude
2504.15127
Mar.
Richarte, Martín G. et al.
Exploring scalarized Einstein-Gauss-Bonnet theories through the lens of parametrized post-Newtonian formalism
2503.13339
Mar.
Abac, Adrian et al.
The Science of the Einstein Telescope
2503.12263
Feb.
Cesar e Silva, Wagno et al.
Bounce solutions with quantum vacuum effects of massive fields and subsequent Starobinsky inflation
2502.02281
Feb.
von Marttens, Rodrigo et al.
Dark energy and cosmic acceleration
2502.00923
Jan.
Fazlollahi, H.R. et al.
Dark Matter and Energy-Momentum Squared Gravity
2501.19141
Dec.
Lima, Jaelsson S. et al.
Interacting dark sector with quadratic coupling: theoretical and observational viability
2412.16299
Dec.
Pace, Francesco et al.
Kinetic coupled tachyon: A dynamical system analysis
2412.20118
Dec.
Iacconi, Laura et al.
Testing inflation on all scales: a case study with α-attractors
2412.02544
Dec.
Ottoni, Tulio et al.
X-ray pulsed light curves of highly compact neutron stars as probes of scalar–tensor theories of gravity
2412.13867
Nov.
Rodrigues, Ricardo G. et al.
Fréchet vectors as sensitive tools for blind tests of CMB anomalies
2411.08087
Nov.
Hipólito-Ricaldi, Wiliam S. et al.
Scale-dependent and background-preserving gravity from an action: cosmological tests
2411.12097
Nov.
de Lima Júnior, J.G. et al.
The Palatini formalism of the $f(R,{\mathcal {L}}_{m},T)$ theory of gravity
2411.15615
Oct.
Benetti, M. et al.
Dark sector interactions in light of weak lensing data
2410.07057
Oct.
Giani, Leonardo et al.
Novel Approach to Cosmological Nonlinearities as an Effective Fluid
2410.15295
Oct.
Buchbinder, Ioseph L. et al.
Renormalization of massive vector field theory coupled to scalar in curved spacetime
2410.00991
Sep.
da Silva, Jonas Pinheiro et al.
Cosmological eras with the neutrino non-relativistic transition in f(R,T) gravity
2409.14443
Sep.
Bomfim, Marcus V. et al.
Primordial magnetogenesis in a bouncing model with dark energy
2409.05329
Sep.
Richarte, M.G. et al.
Quasinormal modes and the analytical continuation of non-self-adjoint operators
2409.00857
Sep.
Bessa, Pedro et al.
Redshift drift fluctuations from N-body simulations
2409.09977
Aug.
Mello, Pedro Riba et al.
On the full non-Gaussian Surprise statistic and the cosmological concordance between DESI, SDSS and Pantheon+
2408.08385
Jul.
Mendes, Raissa F.P. et al.
Exceeding the conformal limit inside rotating neutron stars: Implications to modified theories of gravity
2407.20345
Jul.
Fortunato, Jéferson A.S. et al.
Fast Radio Bursts and Artificial Neural Networks: a cosmological-model-independent estimation of the Hubble constant
2407.03532
Jun.
Schirra, Adrian P. et al.
A model-independent measurement of the expansion and growth rates from BOSS using the FreePower method
2406.15347
Jun.
Fortunato, J.A. S. et al.
Cosmic slowing down of acceleration with the Chaplygin–Jacobi gas as a dark fluid?
2406.13132
Apr.
Amendola, Luca et al.
Cosmological Spatial Curvature with the Alcock-Paczyński Effect
2404.13124
Mar.
Barbosa, Dinorah et al.
Assessing the dark degeneracy through gas mass fraction data
2403.12220
Mar.
da Silva, Jonas Pinheiro et al.
Selecting energy–momentum trace dependent gravity theories with LSS
2403.07130
Mar.
da Silveira Ferreira, Pedro et al.
Tomographic redshift dipole: testing the cosmological principle
2403.14580
Feb.
Schosser, Benedikt et al.
Bayesian distances for quantifying tensions in cosmological inference and the surprise statistic
2402.19100
Feb.
Fortunato, J.A.S. et al.
Hydrostatic equilibrium configurations of neutron stars in the f(R,L,T) gravity theory
2402.15395
Feb.
Toniato, Júnior D. et al.
Post-Newtonian analysis of regularized 4D Einstein-Gauss-Bonnet theory: Complete set of PPN parameters and observational constraints
2402.13951
Nov.
Matos, Isabela et al.
A model-independent tripartite test of cosmic distance relations
2311.17176
Nov.
Ferreira Junior, Alexsandre L. et al.
Inflation and late-time accelerated expansion driven by k-essence degenerate dynamics
2311.01456
Oct.
Wu, Sirui et al.
Total and dark mass from observations of galaxy centers with machine learning
2310.02816
Sep.
Rodrigues, Jamerson G. et al.
CMB constraints on inflection-point inflation with pseudoscalar dark matter
2309.09842
Jul.
Amendola, Luca et al.
Constraints on cosmologically coupled black holes from gravitational wave observations and minimal formation mass
2307.02474
Jul.
Fortunato, Jéferson A.S. et al.
Cosmography from well-localized fast radio bursts
2307.04711
Jul.
Amendola, Luca et al.
Improving precision and accuracy in cosmology with model-independent spectrum and bispectrum
2307.02117
Jun.
Hernandez-Arboleda, Alejandro et al.
Palatini f(R) gravity tests in weak field limit: Solar system, seismology and galaxies
2306.04475
Jun.
Bessa, Pedro et al.
Perturbations of cosmological redshift drift
2306.13911
May
Fortunato, J.A. S. et al.
Search for the f(R, T) gravity functional form via gaussian processes
2305.01325
Apr.
Quartin, Miguel et al.
Constraining Horndeski theory with gravitational waves from coalescing binaries
2304.02535
Apr.
Mushtaq, Muzammil et al.
Dust attenuation in galaxies at cosmic dawn from the FirstLight simulations
2304.10150
Apr.
Bessa, Pedro et al.
Strong gravitational lensing in Horndeski theory of gravity
2304.08141
Mar.
Jeakel, Ana Paula et al.
Revisiting f(R,T) cosmologies
2303.15208
Jan.
Oliveira, Samuel W.P. et al.
Pauli equation and charged spin-1/2 particle in a weak gravitational field
2301.10848
Dec.
Omwoyo, Eunice et al.
Black hole lensing in Kerr-de Sitter spacetimes
2212.10492
Dec.
von Marttens, R. et al.
J-PLUS: galaxy-star-quasar classification for DR3
2212.05868
Nov.
Owusu, Stephen et al.
The CMB cold spot under the lens: ruling out a supervoid interpretation
2211.16139
Sep.
Mokeddem, Rahima et al.
Excess of lensing amplitude in the Planck CMB power spectrum
2209.11660
Sep.
Bessa, Pedro et al.
Gravitational lensing in a universe with matter and a cosmological constant
2209.04063
Sep.
Singh, J.K. et al.
The constrained cosmological model in Lyra geometry
2209.06859
Aug.
von Marttens, Rodrigo et al.
One-parameter dynamical dark-energy from the generalized Chaplygin gas
2208.06302
Jul.
Camarena, D. et al.
Euclid: Testing the Copernican principle with next-generation surveys
2207.09995
May
Camarena, David et al.
A void in the Hubble tension? The end of the line for the Hubble bubble
2205.05422
Apr.
Rodrigues, Davi C. et al.
Normalized additional velocity distribution: Testing the radial profile of dark matter halos and MOND
2204.03762
Mar.
Abdalla, Elcio et al.
Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies
2203.06142
Mar.
Ferreira, Alexsandre L. Junior. et al.
Dynamical dimensional reduction in multivalued Hamiltonians
2203.07099
Mar.
Brando, Guilherme et al.
Enabling matter power spectrum emulation in beyond-ΛCDM cosmologies with COLA
2203.11120
Mar.
Marra, V. et al.
The BEHOMO project: Λ Lemaître-Tolman-Bondi N-body simulations
2203.04009
Feb.
Fazolo, Raquel Emy et al.
Skewness as a test of dark energy perturbations
2202.08355
Dec.
Menote, Ranier et al.
Baryon acoustic oscillations in thin redshift shells from BOSS DR12 and eBOSS DR16 galaxies
2112.10000
Dec.
de Aguiar, Bernardo F. et al.
Neutron Stars in the Symmetron Model
2112.03823
Dec.
Bessa, Pedro et al.
Observational constraints on Starobinsky $f(R)$ cosmology from cosmic expansion and structure growth data
2112.00822
Dec.
Omwoyo, Eunice et al.
Remarks on the black hole shadows in Kerr-de Sitter space times
2112.14124
Nov.
Rodrigues Almeida, Carla et al.
Quantization of a black-hole gravity: geometrodynamics and the quantum
2111.13575
Nov.
Richarte, Martín G. et al.
Scattering and absorption of a scalar field impinging on a charged black hole in the Einstein-Maxwell-dilaton theory
2111.01595
Oct.
Camargo, G.H.S. et al.
Anisotropic motion of an electric dipole in a photon gas near a flat conducting boundary
2110.12955
Oct.
Nesseris, S. et al.
Euclid: Forecast constraints on consistency tests of the ΛCDM model
2110.11421
Oct.
Alestas, George et al.
Late-transition versus smooth $H(z)$-deformation models for the resolution of the Hubble crisis
2110.04336
Sep.
Fabris, Júlio C. et al.
Stellar Structure in a Newtonian Theory with Variable G
2109.08687
Jul.
Ferreira, Tassia et al.
A fast and reliable method for the comparison of covariance matrices
2107.04211
Jul.
Bittencourt, Eduardo et al.
Interference effects and modified Born rule in the presence of torsion
2107.05058
Jul.
Camarena, David et al.
The Copernican principle in light of the latest cosmological data
2107.02296
May
Brando, Guilherme et al.
Fully relativistic predictions in Horndeski gravity from standard Newtonian N-body simulations
2105.04491
Mar.
Falciano, F.T. et al.
Entropy bound in Einstein-Born-Infeld black holes
2103.14109
Feb.
Minazzoli, Olivier et al.
Charged black hole and radiating solutions in entangled relativity
2102.10541
Feb.
Benetti, Micol et al.
Dark sector interactions and the curvature of the universe in light of Planck's 2018 data
2102.10123
Feb.
Salzano, V. et al.
J-PAS: forecasts on interacting vacuum energy models
2102.06417
Jan.
Camarena, David et al.
On the use of the local prior on the absolute magnitude of Type Ia supernovae in cosmological inference
2101.08641
Dec.
Alves de Oliveira, Renan et al.
Fast and Accurate Non-Linear Predictions of Universes with Deep Learning
2012.00240
Dec.
Carneiro, Saulo et al.
Quasinormal modes and horizon area quantisation in Loop Quantum Gravity
2012.00227
Nov.
Guimarães, L.F. et al.
Viable curvaton models from the $f_{NL}$ parameter
2011.13888
Oct.
Delgado, P.C.M. et al.
Baryogenesis in cosmological models with symmetric and asymmetric quantum bounces
2010.04807
Oct.
Camargo, G.H. S. et al.
Probing thermal fluctuations through scalar test particles
2010.07146
Oct.
Fabris, Júlio C. et al.
Quasinormal modes and self-adjoint extensions of the Schrödinger operator
2010.10674
Jul.
Agudelo Ruiz, Jhonny A. et al.
Constraints from observational data for a running cosmological constant and warm dark matter with curvature
2007.12636
Jul.
Bronnikov, K.A. et al.
Rastall’s theory of gravity: spherically symmetric solutions and the stability problem
2007.01945
Jul.
Bonoli, S. et al.
The miniJPAS survey: A preview of the Universe in 56 colors
2007.01910
Jul.
Baqui, P.O. et al.
The miniJPAS survey: star-galaxy classification using machine learning
2007.07622
Jul.
Lobo, Iarley P. et al.
Thin-shell wormholes in Rastall gravity
2007.05641
Jun.
Brando, Guilherme et al.
Relativistic Corrections to the Growth of Structure in Modified Gravity
2006.11019
Jun.
Kremer, Gilberto M. et al.
Using kinetic theory to examine a self-gravitating system composed of baryons and cold dark matter
2006.10889
May
Giani, Leonardo et al.
Testing the Equivalence Principle with Strong Lensing Time Delay Variations
2005.07533
Apr.
Frion, E. et al.
Primordial Magnetogenesis in a Bouncing Universe
2004.07269
Apr.
Pinto-Neto, Nelson et al.
Vector perturbations in bouncing cosmology
2004.07655
Feb.
Marra, Valerio et al.
A fundamental test for MOND
2002.03946
Feb.
Nicacio, F. et al.
Mean Value of the Quantum Potential and Uncertainty Relations
2002.01507
Jan.
Brando, Guilherme et al.
Exploring early and late cosmology with next generation surveys
2001.07738
Jan.
Pigozzo, Cássio et al.
On the value of the Immirzi parameter and the horizon entropy
2001.03440
Dec.
Toniato, Júnior D. et al.
Palatini $f(R)$ gravity in the solar system: post-Newtonian equations of motion and complete PPN parameters
1912.12234
Dec.
Olmo, Gonzalo J. et al.
Stellar structure models in modified theories of gravity: Lessons and challenges
1912.05202
Nov.
Falciano, F.T. et al.
Entropy bounds and nonlinear electrodynamics
1911.08467
Nov.
Agudelo Ruiz, Jhonny A. et al.
Primordial universe with the running cosmological constant
1911.06315
Nov.
Velten, Hermano et al.
Skewness of matter distribution in clustering dark energy cosmologies
1912.00094
Oct.
Camarena, David et al.
A new method to build the (inverse) distance ladder
1910.14125
Oct.
Profumo, Stefano et al.
An Introduction to Particle Dark Matter
1910.05610
Oct.
Caprini, Chiara et al.
Detecting gravitational waves from cosmological phase transitions with LISA: an update
1910.13125
Oct.
Miranda, Tays et al.
Stochastic collapse
1910.10000
Sep.
von Marttens, R. et al.
Unphysical properties in a class of interacting dark energy models
1909.10336
Aug.
Bertini, Nicolas R. et al.
Cosmological framework for renormalization group extended gravity at the action level
1908.03960
Jun.
Giani, Leonardo et al.
Late-times asymptotic equation of state for a class of nonlocal theories of gravity
1906.10480
Jun.
Camarena, David et al.
Local determination of the Hubble constant and the deceleration parameter
1906.11814
Jun.
Olmo, Gonzalo J. et al.
Minimum main sequence mass in quadratic Palatini $f(R)$ gravity
1906.04629
Jun.
Rogatko, Marek et al.
Primordial density fluctuations generated by wormholes
1906.03015
May
Giani, Leonardo et al.
Cosmology and Newtonian limit in a model of gravity with nonlocally interacting metrics
1905.02720
May
Toniato, Júnior Diniz et al.
The description of gravitational waves in geometric scalar gravity
1905.05690
Apr.
Brando, Guilherme et al.
Modified gravity away from a $\Lambda$CDM background
1904.12903
Mar.
Fabris, Julio C. et al.
Existence of static spherically-symmetric objects in action-dependent Lagrangian theories
1903.12193
Mar.
Zimdahl, Winfried et al.
Matter Growth in Imperfect Fluid Cosmology
1903.03383
Mar.
Santos, Edison C. et al.
Quasi-normal modes of black holes and naked singularities: revisiting the WKB method
1903.04874
Feb.
Guimarães, L.F. et al.
Quasimatter bounce equivalent to Starobinsky inflation
1902.05031
Jan.
Sergyeyev, Artur et al.
The Palatini star: exact solutions of the modified Lane–Emden equation
1901.10448
Dec.
Oliveira, Renan A. et al.
CMB statistical isotropy confirmation at all scales using multipole vectors
1812.02654
Oct.
Frion, E. et al.
Affine quantization of the Brans-Dicke theory: Smooth bouncing and the equivalence between the Einstein and Jordan frames
1810.00707
Oct.
Brando, G. et al.
Stiff matter solution in Brans–Dicke theory and the general relativity limit
1810.07860
Aug.
Wojnar, Aneta et al.
Polytropic stars in Palatini gravity
1808.04188
May
Cid, Antonella et al.
Bayesian Comparison of Interacting Scenarios
1805.02107
May
Camarena, David et al.
Impact of the cosmic variance on $H_0$ on cosmological analyses
1805.09900
Feb.
Piattella, Oliver F. et al.
Lecture Notes in Cosmology
1803.00070