Fabio Bacchini
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View article: Comparison of magnetic diffusion and reconnection in ideal and resistive relativistic magnetohydrodynamics, ideal magnetodynamics, and resistive force-free electrodynamics
Comparison of magnetic diffusion and reconnection in ideal and resistive relativistic magnetohydrodynamics, ideal magnetodynamics, and resistive force-free electrodynamics Open
High-energy astrophysical systems and compact objects are frequently modeled using ideal relativistic magnetohydrodynamic (MHD) or force-free electrodynamic (FFE) simulations, with the underlying assumption that the discretisation from the…
View article: Application of the BxC toolkit to the study of cosmic rays transport
Application of the BxC toolkit to the study of cosmic rays transport Open
The study of turbulent magnetic fields is crucial in modern astrophysics due to the omnipresence of plasma in a turbulent state. The state-of-the-art approach to the study of turbulence entails the use of numerical simulations, whose high …
View article: Icarus 3.0: Dynamic heliosphere modelling
Icarus 3.0: Dynamic heliosphere modelling Open
Context. Space weather predictions are necessary to avoid damage caused by intense geomagnetic storms. Such strong storms are usually caused by a co-rotating interaction region (CIR) passing at Earth or by the arrival of strong coronal mas…
View article: Icarus 3.0: Dynamic Heliosphere Modelling
Icarus 3.0: Dynamic Heliosphere Modelling Open
Space weather predictions are necessary to avoid damage caused by intense geomagnetic storms. Such strong storms are usually caused by a co-rotating interaction region (CIR) passing at Earth or by the arrival of strong coronal mass ejectio…
View article: Can Alfvénic Fluctuations Affect the Correlation and Complexity of Magnetic Fields in Magnetic Ejecta? A Case Study Based on Multi-Spacecraft Measurements at 1~au
Can Alfvénic Fluctuations Affect the Correlation and Complexity of Magnetic Fields in Magnetic Ejecta? A Case Study Based on Multi-Spacecraft Measurements at 1~au Open
We investigate whether Alfvénic fluctuations (AFs) can affect the structure of magnetic ejecta (MEs) within interplanetary coronal mass ejections (ICMEs). We study an ICME observed on 2001 December 29 at 1 au by ACE and Wind, at a total an…
View article: On the Relations Between Non-Verbal Signs and Norms
On the Relations Between Non-Verbal Signs and Norms Open
Although the presumption that norms are necessarily expressed by words has traditionally prevailed in the scientific community, some scholars are challenging verbal-centrism in the normative domain. While sympathising with this cause, this…
View article: BxC Toolkit: Generating Tailored Turbulent 3D Magnetic Fields
BxC Toolkit: Generating Tailored Turbulent 3D Magnetic Fields Open
Turbulent states are ubiquitous in plasmas and the understanding of turbulence is fundamental in modern astrophysics. Numerical simulations, which are the state-of-the-art approach to the study of turbulence, require substantial computing …
View article: Comparative simulations of Kelvin-Helmholtz induced magnetic reconnection at the Earth's magnetospheric flanks
Comparative simulations of Kelvin-Helmholtz induced magnetic reconnection at the Earth's magnetospheric flanks Open
In this work, we investigate the interaction between the solar wind and the Earth’s magnetosphere by conducting 3D Hall-MHD simulations. Specifically, we focus on the development of the Kelvin-Helmholtz instability (KHI) and its cruc…
View article: On the Role of Alfvenic Fluctuations as Mediators of Coherence within Interplanetary Coronal Mass Ejections: Investigation of Multi-Spacecraft Measurements at 1 au
On the Role of Alfvenic Fluctuations as Mediators of Coherence within Interplanetary Coronal Mass Ejections: Investigation of Multi-Spacecraft Measurements at 1 au Open
Interplanetary coronal mass ejections (ICMEs) are defined as ''coherent'' if they are capable of responding to external perturbations in a collective manner. This implies that information must be able to propagate across ICME structures, a…
View article: The Ethics of Imitation in Meat Alternatives
The Ethics of Imitation in Meat Alternatives Open
The consumption of traditional meat is currently being challenged by the rise of meat alternatives claimed to be more beneficial for the environment and non-human animals. One of the peculiarities of these products lies in their attempt to…
View article: MPI-AMRVAC 3.0: updates to an open-source simulation framework
MPI-AMRVAC 3.0: updates to an open-source simulation framework Open
Computational astrophysics routinely combines grid-adaptive capabilities with modern shock-capturing, high resolution spatio-temporal schemes on multi-dimensional hydro- and magnetohydrodynamics. We provide an update on developments within…
View article: Black Hole Photon Rings Beyond General Relativity
Black Hole Photon Rings Beyond General Relativity Open
We investigate whether photon ring observations in black hole imaging are able to distinguish between the Kerr black hole in general relativity and alternative black holes that deviate from Kerr. Certain aspects of photon rings have been a…
View article: Collisionless accretion onto black holes: dynamics and flares
Collisionless accretion onto black holes: dynamics and flares Open
We study the accretion of collisionless plasma onto a rotating black hole from first principles using axisymmetric general-relativistic particle-in-cell simulations. We carry out a side-by-side comparison of these results to analogous gene…
View article: Effective resistivity in relativistic collisionless plasmoid-mediated reconnection
Effective resistivity in relativistic collisionless plasmoid-mediated reconnection Open
Magnetic reconnection can power spectacular high-energy astrophysical phenomena by producing non-thermal energy distributions in highly magnetized regions around compact objects. By means of two-dimensional fully kinetic particle-in-cell (…
View article: Naïve Realism Face to Face with the Time Lag Argument
Naïve Realism Face to Face with the Time Lag Argument Open
Naïve realists traditionally reject the time lag argument by replying that we can be in a direct visual perceptual relation to temporally distant facts or objects. I first show that this answer entails that some visual perceptions—i.e., th…
View article: Culinary Works Come in Three Ontological Flavours
Culinary Works Come in Three Ontological Flavours Open
When investigating the nature of culinary works, it is easy to take for granted that they all share the same ontology. This paper argues that, on the contrary, the ontology of culinary works is really threefold. Some culinary works are edi…
View article: Hunger as a Constitutive Property of a Culinary Work
Hunger as a Constitutive Property of a Culinary Work Open
In this paper I attempt to show that a certain degree of hunger, intended as a material and psychological condition of the diner, can become a constitutive property of a culinary work. One may believe that the best possible argument suppor…
View article: Logo Recognition with an Incremental Learning method and Consensus for enabling Blockchain Implementations
Logo Recognition with an Incremental Learning method and Consensus for enabling Blockchain Implementations Open
A large amount of non-processed visual information is uploaded in social networks every day. Different features can be analyzed from the images such as objects, scenes, sentiments, people’s mood, color, etc. In this paper, we propose a nov…
View article: Epistemology and Responsibility
Epistemology and Responsibility Open
This paper emphasises that there is a deep unity underlying Pierre-Yves Raccah’s theory of argumentation, ethics, moral epistemology, general epistemology, philosophy of science and cognitive psychology. First I show that – on the backgrou…
View article: The Persistence of Buildings and the Context Problem
The Persistence of Buildings and the Context Problem Open
Raising the persistence question about architectural entities consists in asking what is necessary and sufficient for a past or future architectural entity, like a building, to exist now. In this paper I investigate how the persistence que…
View article: The Persistence of Buildings and the Context Problem
The Persistence of Buildings and the Context Problem Open
Raising the persistence question about architectural entities consists in asking what is necessary and sufficient for a past or future architectural entity, like a building, to exist now. In this paper I investigate how the persistence que…