286
Publications
822
Auteurs uniques
0
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Sous-domaines
Astronomie
0 publication(s)
Astrophysique
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Cosmologie
0 publication(s)
Sciences planétaires
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Sciences spatiales
1 publication(s)
Publications
286 publication(s) trouvée(s)
Article scientifique
Statistical and Kinematic Analysis of the Coupling between Coronal Mass Ejections and Solar Flares during the Solar Cycles 23–25
Article scientifique
Beyond the equation of state: a second-order diagnostic for dynamical dark energy
The first-order continuity equations determine the evolution of the energy densities but depend only on the instantaneous value of the …
Article scientifique
Magnetic Flux Density as a Driver of Chromospheric and Coronal Emissions During the Rise of Solar Cycle 25
Article scientifique
Digital Beam Pattern Optimisation for the GRAO 32-m Telescope: A Comparative Analysis of FIR Filter Design Methods
The scientific utility of large single-dish radio telescopes depends critically on the stability and fidelity of their beam patterns, which …
Article scientifique
Long-memory modeling and forecasting of monthly mean sunspot numbers for cycles 25 & 26 using ARFIMA model
The number of sunspots is a key indicator of solar magnetic activity and strongly influences space weather, affecting technological systems …
Article scientifique
$U(1)_{B-L}$ Dark Matter Constrains Smooth (SUSY) Hybrid Inflation
We propose a unified framework that connects inflationary dynamics with dark matter production within a supersymmetric $U(1)_{B-L}$ extension of the …
Article scientifique
Impact of lensing magnification on the power spectrum turnover
The turnover scale $k_0$ of the matter power spectrum -- and consequently of the standard galaxy power spectrum monopole -- …
Article scientifique
Latitudinal Variation of Ionospheric Total Electron Content During the 17 March 2015 Geomagnetic Storm: A Multi-Station GNSS Analysis
Abstract. We investigated the latitude-dependent ionospheric response to the St. Patrick’s Day geomagnetic storm of 17 March 2015 (Dst =−234 …
Article scientifique
Kinetic Theory of Cosmological Magnetogenesis at Second Order: A New Density-Gradient Source and Comparison with the Harrison Mechanism
We derive and compare three mechanisms of cosmological magnetogenesis: the Thomson-scattering velocity-difference mechanism of Takahashi et al.\ (2005), a new …
Article scientifique
The X-ray photon index Eddington ratio relation in radio-quiet quasars from XMM-Newton and SDSS
This study presents a comprehensive X-ray spectroscopic analysis of 642 quasars, obtained by cross-matching the XMM-Newton Serendipitous Source Catalog (DR11) …
Article scientifique
Turbulent Diffusion of Magnetic Field Lines in the Heliosphere
Due to solar wind turbulence, Parker spirals are stochastic. The dispersion of magnetic field lines is described by a convection-diffusion …
Article scientifique
Non-Perturbative Bounds on Cosmological Backreaction, the Non-Linear Scale, and Gauge-Invariant Mutual Information from the Matter Power Spectrum
We apply the mesoscopic coarse-graining framework of~\cite{OsanoMeso,OsanoExtensivity,OsanoPerturbation} to three problems in Cosmological Perturbation Theory and the backreaction debate. \textbf{(i)}~A non-perturbative …
Article scientifique
Kerr black hole in presence of force-free magnetic field
Article scientifique
Bayesian estimation of spectral parameters of the 6.7-GHz methanol maser G339.884-1.259 from GRAO observations
Accurate decomposition of methanol maser spectra is essential for understanding high-mass star-forming regions, especially in complex blended spectra where small …
Article scientifique
Exploring the High-Redshift 21-cm Signal via Self-Consistent Simulations using Artificial Neural Network Emulation
We present a novel, self-consistent, semi-numeric Cosmic Dawn (CD) simulation in which small-scale star formation (SF) is calibrated to the …
Article scientifique
Photon Sphere and Shadow of a Perturbative Black Hole in $f(R,\mathcal{G})$ Gravity
We investigate the impact of higher-curvature corrections on black-hole observables within a perturbative $f(R, G)$ gravity framework. Working in a …
Article scientifique
Light Deflection and Greybody Bound Around a BTZ-ModMax Black Hole in Plasma Medium
We study the deflection of light in a homogeneous plasma medium around a BTZ-ModMax black hole, focusing on the effects …
Article scientifique
Nocturnal variability of total electron content (TEC) at Koudougou (Burkina Faso) during three geomagnetic storms of solar cycle 24: implications for equatorial ionospheric irregularities
Abstract. This study analyses the nocturnal variability of GPS-derived total electron content (TEC) at Koudougou, Burkina Faso (12°15’N, 2°20’W), during …
Article scientifique
Electromagnetic Characterization of Cantenna-Based Arrays for Low-Cost Radio Interferometry at 1.42 GHz
Article scientifique
Framing the Orbital Commons: Public Discourse and LEO Sustainability After the Starlink Gen2 Approval
Abstract. The rapid expansion of satellite mega-constellations in Low Earth Orbit (LEO) is transforming orbital space into a densely populated …