activity
20162026
most citedSpeeding up the universe using dust with pressure

130 citations · 730 across the 46 of their papers we have counts for

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Showing 2021Show all

9 papers · 1 filter

hep-ph2021

Unifying baryogenesis with dark matter production

Orlando Luongo, Nicola Marcantognini, Marco Muccino

We here propose a mechanism that predicts, at early times, both baryon asymmetry and dark matter origin and that recovers the spontaneous baryogenesis during the reheating. Working…

astro-ph.HE2021

Accretion disk luminosity for black holes surrounded by dark matter with anisotropic pressure

Kuantay Boshkayev, Roberto Giambò, Talgar Konysbayev +4

We investigate the luminosity of the accretion disk for a static black hole surrounded by dark matter with anisotropic pressure. We calculate all basic orbital parameters of test p…

astro-ph.HE2021

A roadmap to gamma-ray bursts: new developments and applications to cosmology

Orlando Luongo, Marco Muccino

Gamma-ray bursts are the most powerful explosions in the universe and are mainly placed at very large redshifts, up to . In this short review, we first discuss gamma-ray…

astro-ph.CO2021★ 96 cited

On Larger Values in the CMB Dipole Direction

Orlando Luongo, Marco Muccino, Eoin Ó Colgáin +2

On the assumption that quasars (QSO) and gamma-ray bursts (GRB) represent \textit{standardisable candles}, we provide evidence that the Hubble constant adopts larger values i…

astro-ph.GA2021★ 1 cited

Effects of non-vanishing dark matter pressure in the Milky Way galaxy

Kuantay Boshkayev, Talgar Konysbayev, Ergali Kurmanov +4

We consider the possibility that the Milky Way's dark matter halo possesses a non vanishing equation of state. Consequently, we evaluate the contribution due to the speed of sound,…

gr-qc2021

Luminosity of accretion disks in compact objects with quadrupole

Kuantay Boshkayev, Talgar Konysbayev, Ergali Kurmanov +3

We consider the circular motion of test particles in the gravitational field of a static and axially-symmetric compact object described by the -metric. To this end, we calculate…

astro-ph.CO2021★ 92 cited

Do gamma-ray burst measurements provide a useful test of cosmological models?

Narayan Khadka, Orlando Luongo, Marco Muccino +1

We study eight different gamma-ray burst (GRB) data sets to examine whether current GRB measurements -- that probe a largely unexplored part of cosmological redshift () space --…

astro-ph.CO2021★ 25 cited

Testing generalized logotropic models with cosmic growth

Kuantay Boshkayev, Talgar Konysbayev, Orlando Luongo +2

We check the dynamical and observational features of four typologies of logotropic dark energy models, leading to a \emph{thermodynamic cosmic speed up} fueled by a single fluid th…

cond-mat.stat-mech2021

Thermodynamic length, geometric efficiency and Legendre invariance

Carlo Cafaro, Orlando Luongo, Stefano Mancini +1

Thermodynamic length is a metric distance between equilibrium thermodynamic states that asymptotically bounds the dissipation induced by a finite time transformation of a thermodyn…