130 citations · 730 across the 46 of their papers we have counts for
11 papers · 1 filter
Characterizing the equivalence between dark energy and radiation using gamma-ray bursts
Orlando Luongo, Marco Muccino
Differently from the equivalence time between either matter and radiation or dark energy and matter, the equivalence between dark energy and radiation occurs between two subdominan…
Determining from distance sum rule combining gamma-ray bursts with observational Hubble data and strong gravitational lensing
Orlando Luongo, Marco Muccino
Model-independent bounds on the Hubble constant are important to shed light on cosmological tensions. We work out a model-independent analysis based on the sum rule, which is…
Dark energy reconstructions combining BAO data with galaxy clusters and intermediate redshift catalogs
Orlando Luongo, Marco Muccino
Cosmological parameters and dark energy (DE) behavior are generally constrained assuming \textit{a priori} models. We work out a model-independent reconstruction to bound the key c…
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…
Particle motion and accretion disk around rotating accelerating black holes
Amjad Ashoorioon, Mohammad Bagher Jahani Poshteh, Orlando Luongo
We investigate the motion of test particles and the properties of accretion disks around rotating, accelerating black hole spacetimes with non-zero cosmological constants. To do so…
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…
Accretion disks properties around regular black hole solutions obtained from non-linear electrodynamics
Yergali Kurmanov, Kuantay Boshkayev, Talgar Konysbayev +5
We investigate a family of spherically symmetric, static, charged regular black hole solutions derived within the framework of Einstein-nonlinear electrodynamics. Our study focuses…
Does dark energy really revive using DESI 2024 data?
Youri Carloni, Orlando Luongo, Marco Muccino
We investigate the impact of the Dark Energy Spectroscopic Instrument (DESI) 2024 data on dark energy scenarios. We thus analyze three typologies of models, the first in which the…
Model independent cosmographic constraints from DESI 2024
Orlando Luongo, Marco Muccino
In this study, we explore model independent constraints on the universe kinematics up to the snap and jerk hierarchical terms. To do so, we consider the latest Baryon Acoustic Osci…
Double polytropic cosmic acceleration from the Murnaghan equation of state
Peter K. S. Dunsby, Orlando Luongo, Marco Muccino +1
We consider a double polytropic cosmological fluid and demonstrate that, when one constituent resembles a bare cosmological constant while the other emulates a generalized Chaplygi…
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…