Search Results - "Capozziello, S."

High-redshift cosmography: auxiliary variables versus Padé polynomials by Capozziello, S, D’Agostino, R, Luongo, O

“…ABSTRACT Cosmography becomes non-predictive when cosmic data span beyond the redshift limit z ≃ 1. This leads to a strong convergence issue that jeopardizes…”
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Anisotropic compact stars in f(R) gravity by Nashed, G. G. L., Capozziello, S.

“…We derive a new interior solution for stellar compact objects in f ( R ) gravity assuming a differential relation to constrain the Ricci curvature scalar. To…”
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Gamma-ray bursts, quasars, baryonic acoustic oscillations, and supernovae Ia: new statistical insights and cosmological constraints by Bargiacchi, G, Dainotti, M G, Nagataki, S, Capozziello, S

“…ABSTRACT The recent $\sim 4 \, \sigma$ Hubble constant, H0, tension is observed between the value of H0 from the cosmic microwave background (CMB) and Type Ia…”
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The role of energy conditions in f(R) cosmology by Capozziello, S., Nojiri, S., Odintsov, S.D.

“…Energy conditions can play an important role in defining the cosmological evolution. Specifically acceleration/deceleration of cosmic fluid, as well as the…”
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Stable and self-consistent compact star models in teleparallel gravity by Nashed, G. G. L., Capozziello, S.

“…In the framework of Teleparallel Gravity, we derive a charged non-vacuum solution for a physically symmetric tetrad field with two unknown functions of radial…”
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Quasar cosmology: dark energy evolution and spatial curvature by Bargiacchi, G, Benetti, M, Capozziello, S, Lusso, E, Risaliti, G, Signorini, M

“…ABSTRACT We analyse some open debates in cosmology in light of the most updated quasar (QSO) sample, covering a wide redshift range up to $\mathit{ z}$ ∼ 7.5,…”
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Tensions with the flat ΛCDM model from high-redshift cosmography by Bargiacchi, G, Dainotti, M G, Capozziello, S

“…ABSTRACT The longstanding search for the cosmological model that best describes the Universe has been made more intriguing since the recent discovery of the…”
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Causal limit of neutron star maximum mass in f(R) gravity in view of GW190814 by Astashenok, A.V., Capozziello, S., Odintsov, S.D., Oikonomou, V.K.

“…We investigate the causal limit of maximum mass for stars in the framework of f(R) gravity. We choose a causal equation of state, with variable speed of sound,…”
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Extended gravity description for the GW190814 supermassive neutron star by Astashenok, A.V., Capozziello, S., Odintsov, S.D., Oikonomou, V.K.

“…Very recently a compact object with a mass in the range 2.50÷2.67M⊙ has been discovered via gravitational waves detection of a compact binary coalescence. The…”
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Optical and X-ray GRB Fundamental Planes as cosmological distance indicators by Dainotti, M G, Nielson, V, Sarracino, G, Rinaldi, E, Nagataki, S, Capozziello, S, Gnedin, O Y, Bargiacchi, G

“…ABSTRACT Gamma-ray bursts (GRBs), can be employed as standardized candles, extending the distance ladder beyond Type Ia supernovae (SNe Ia, z = 2.26). We…”
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Considerations on gravitational waves in higher-order local and non-local gravity by Capozziello, S., Capriolo, M., Nojiri, S.

“…The detection of gravitational wave modes and polarizations could constitute an extremely important signature to discriminate among different theories of…”
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The gamma-ray bursts fundamental plane correlation as a cosmological tool by Dainotti, M G, Lenart, A Ł, Chraya, A, Sarracino, G, Nagataki, S, Fraija, N, Capozziello, S, Bogdan, M

“…ABSTRACT Cosmological models and their corresponding parameters are widely debated because of the current discrepancy between the results of the Hubble…”
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The dark matter problem from f(R) gravity viewpoint by Capozziello, S., De Laurentis, M.

“…An alternative view to the dark matter puzzle is represented by Extended Theories of Gravity. The approach consists in addressing issues like dark components…”
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Quasars: Standard Candles up to z = 7.5 with the Precision of Supernovae Ia by Dainotti, M. G., Bargiacchi, G., Lenart, A. Ł., Nagataki, S., Capozziello, S.

“…Abstract Currently, the Λ cold dark matter model, which relies on the existence of cold dark matter and a cosmological constant Λ, best describes the universe…”
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D-dimensional charged Anti-de-Sitter black holes in f (T) gravity by Awad, A.M., Capozziello, S., Nashed, G.G.L.

“…A bstract We present a D -dimensional charged Anti-de-Sitter black hole solutions in f ( T ) gravity, where f ( T ) = T + βT 2 and D ≥ 4. These solutions are…”
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Constraining f(T) teleparallel gravity by big bang nucleosynthesis: f(T) cosmology and BBN by Capozziello, S., Lambiase, G., Saridakis, E. N.

“…We use Big Bang Nucleosynthesis (BBN) observational data on the primordial abundance of light elements to constrain f ( T ) gravity. The three most studied…”
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The X-Ray Fundamental Plane of the Platinum Sample, the Kilonovae, and the SNe Ib/c Associated with GRBs by Dainotti, M. G., Lenart, A. Ł., Sarracino, G., Nagataki, S., Capozziello, S., Fraija, N.

“…Abstract A large fraction of gamma-ray burst (GRB) lightcurves (LCs) show X-ray plateaus. We analyze all GRBs with known redshifts presenting plateaus observed…”
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Maximum baryon masses for static neutron stars in f(R) gravity by Astashenok, A. V., Capozziello, S., Odintsov, S. D., Oikonomou, V. K.

“…Abstract We investigate the upper mass limit predictions of the baryonic mass for static neutron stars in the context of f ( R ) gravity. We use the most…”
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Noether symmetries and analytical solutions in f ( T ) cosmology: A complete study by Basilakos, S., Capozziello, S., De Laurentis, M., Paliathanasis, A., Tsamparlis, M.

“…We investigate the main features of the flat Friedmann-Lemaitre-Robertson-Walker cosmological models in the f(T) modified gravity regime. In particular, a…”
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Novel stellar astrophysics from extended gravity by Astashenok, A. V., Capozziello, S., Odintsov, S. D., Oikonomou, V. K.

“…Novel implications on neutron stars come from extended gravity. Specifically, the GW190814 event indicated the probability of having large mass stars in the…”
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