10 citations · 24 across the 10 of their papers we have counts for
11 papers
Redshift dependence and dipolar velocity corrections in cosmographic reconstructions through Type Ia supernova samples
Anna Chiara Alfano, Youri Carloni, Orlando Luongo +1
We perform a cosmographic analysis of Type Ia supernovae using the Pantheon+\&SH0ES, DES-SNY5 and Union3 compilations. We consider different redshift intervals, analyzed through a…
Investigating cosmic distance duality and dark energy evolution through intermediate and high-z probes
Anna Chiara Alfano
We investigate deviations from the cosmic distance duality relation adopting model-dependent and -independent approaches using i) a Taylor expansion, ii) a power-law parameterizati…
Mapping the redshift drift at various redshifts through cosmography
Anna Chiara Alfano, Orlando Luongo
The redshift drift provides a kinematic test of the cosmic expansion history through the slow time variation of the redshift of comoving sources. Motivated by the expected Sandage-…
Parameterizing quasi-quintessence and quasi-phantom fields without the nearly flat potential approximation
Anna Chiara Alfano, Youri Carloni
An alternative dark energy description based on a generalized K-essence scenario is here explored. In particular, we consider a \emph{quasi-quintessence} and/or \emph{quasi-phantom…
Investigating the cosmic distance duality relation with gamma-ray bursts
Anna Chiara Alfano, Carlo Cafaro, Salvatore Capozziello +2
Deviations from the so-called {\it cosmic distance duality relation} may result from systematic errors in distance measurements or, more interestingly, hint at new physics. Further…
Cosmic distance duality after DESI 2024 data release and dark energy evolution
Anna Chiara Alfano, Orlando Luongo
The cosmic distance duality relates the angular-diameter and luminosity distances and its possible violation may puzzle the standard cosmological model. This appears particularly i…
Dark energy constraints using gamma-ray burst correlations with DESI 2024 data
Anna Chiara Alfano, Orlando Luongo, Marco Muccino
Even though the Dark Energy Spectroscopic Instrument (DESI) mission does not exclude a dynamical dark energy evolution, the concordance paradigm, i.e., the CDM model, remains st…
Cosmological constraints from calibrated gamma-ray burst correlation by using DESI 2024 data release
Anna Chiara Alfano, Orlando Luongo, Marco Muccino
Recent outcomes by the DESI Collaboration have shed light on a possible slightly evolving dark energy, challenging the standard CDM paradigm. To better understand dark energy na…
Cosmological transition epoch from gamma-ray burst correlations
Anna Chiara Alfano, Salvatore Capozziello, Orlando Luongo +1
The redshift and the jerk parameter of the transition epoch are constrained by using two model-independent approaches involving the direct expansion of the Hubble rate…
Breaking the baryon-dark matter degeneracy in a model-independent way through the Sunyaev-Zeldovich effect
Anna Chiara Alfano, Orlando Luongo, Marco Muccino
We propose a model-independent \textit{Bézier parametric interpolation} to alleviate the degeneracy between baryonic and dark matter abundances by means of intermediate-redshift da…
Dark energy-matter equivalence by the evolution of cosmic equation of state
Anna Chiara Alfano, Carlo Cafaro, Salvatore Capozziello +1
We consider a model-independent approach to constrain the equivalence redshift, , at which dark energy and the total matter (cold dark matter and baryonic) equate their mag…