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View article: Ultraviolet radiation and neutrinos: two messengers from CCSNe in the CSM scenario
Ultraviolet radiation and neutrinos: two messengers from CCSNe in the CSM scenario Open
Massive stars (>8 $M_{\odot}$) often undergo intense mass loss through winds or eruptive events in the final stages of their evolution, leading to the formation of a dense circumstellar medium (CSM). This material, expelled months to years…
View article: Search for an eV-scale sterile neutrino with the first six detection units of KM3NeT/ORCA
Search for an eV-scale sterile neutrino with the first six detection units of KM3NeT/ORCA Open
The existence of an eV-scale sterile neutrino has been proposed to explain several anomalous experimental results obtained over the course of the past 25 years. The first search for such a sterile neutrino conducted with data from KM3NeT/O…
View article: Constraining gamma-ray burst parameters with the first ultra-high energy neutrino event KM3-230213A
Constraining gamma-ray burst parameters with the first ultra-high energy neutrino event KM3-230213A Open
Context: The detection of the highest energy neutrino observed to date by KM3NeT, with an estimated energy of 220 PeV, opens up new possibilities for the study and identification of the astrophysical sources responsible for a diffuse flux …
View article: On the Potential Cosmogenic Origin of the Ultra-high-energy Event KM3-230213A
On the Potential Cosmogenic Origin of the Ultra-high-energy Event KM3-230213A Open
On 2023 February 13, the KM3NeT/ARCA telescope observed a track-like event compatible with a ultra-high-energy muon with an estimated energy of 120 PeV, produced by a neutrino with an even higher energy, making it the most energetic neutri…
View article: KM3NeT Constraint on Lorentz-Violating Superluminal Neutrino Velocity
KM3NeT Constraint on Lorentz-Violating Superluminal Neutrino Velocity Open
Lorentz invariance is a fundamental symmetry of spacetime and foundational to modern physics. One of its most important consequences is the constancy of the speed of light. This invariance, together with the geometry of spacetime, implies …
View article: Observation of an ultra-high-energy cosmic neutrino with KM3NeT
Observation of an ultra-high-energy cosmic neutrino with KM3NeT Open
The detection of cosmic neutrinos with energies above a teraelectronvolt (TeV) offers a unique exploration into astrophysical phenomena1-3. Electrically neutral and interacting only by means of the weak interaction, neutrinos are not defle…
View article: Exploring the supernova remnant contribution to the first LHAASO source catalog via passively illuminated interstellar clouds
Exploring the supernova remnant contribution to the first LHAASO source catalog via passively illuminated interstellar clouds Open
Supernova remnants (SNRs) are considered as the most promising source class to account for the bulk of the Galactic cosmic-ray flux. Yet amongst the population of ultra-high energy (UHE) sources that has recently emerged, due to high-altit…
View article: Towards multi-messenger observations of core-collapse supernovae harbouring choked jets
Towards multi-messenger observations of core-collapse supernovae harbouring choked jets Open
Context. Over the past decade, choked jets have attracted particular attention as potential sources of high-energy cosmic neutrinos. It is challenging to test this hypothesis because of the missing gamma-ray counterpart. An identification …
View article: Astronomy potential of KM3NeT/ARCA
Astronomy potential of KM3NeT/ARCA Open
The KM3NeT/ARCA neutrino detector is currently under construction at 3500 m depth offshore Capo Passero, Sicily, in the Mediterranean Sea. The main science objectives are the detection of high-energy cosmic neutrinos and the discovery of t…
View article: Results of the follow-up of ANTARES neutrino alerts
Results of the follow-up of ANTARES neutrino alerts Open
High-energy neutrinos could be produced in the interaction of charged cosmic rays with matter or radiation surrounding astrophysical sources. To look for transient sources associated with neutrino emission, a follow-up program of neutrino …
View article: Detection prospects of very and ultra high-energy gamma rays from extended sources with ASTRI, CTA, and LHAASO
Detection prospects of very and ultra high-energy gamma rays from extended sources with ASTRI, CTA, and LHAASO Open
Context . The recent discovery of several ultra high-energy gamma-ray emitters in our Galaxy represents a significant advancement towards the characterisation of its most powerful accelerators. Nonetheless, in order to unambiguously locate…
View article: Mass and wind luminosity of young Galactic open clusters in <i>Gaia</i> DR2
Mass and wind luminosity of young Galactic open clusters in <i>Gaia</i> DR2 Open
Context. Star clusters constitute a significant part of the stellar population in our Galaxy. The feedback processes they exert on the interstellar medium impact multiple physical processes from the chemical to the dynamical evolution of t…
View article: Probing Stellar Clusters from Gaia DR2 as Galactic PeVatrons: I -- Expected Gamma-ray and Neutrino Emission
Probing Stellar Clusters from Gaia DR2 as Galactic PeVatrons: I -- Expected Gamma-ray and Neutrino Emission Open
Young & massive stellar clusters (SCs) are a potential source of galactic cosmic rays up to very high energies as a result of two possible acceleration scenarios. Collective stellar winds from massive member stars form a wind-blown bubble …
View article: Towards multi-messenger observations of core-collapse supernovae harbouring choked jets
Towards multi-messenger observations of core-collapse supernovae harbouring choked jets Open
Choked jets (CJ) have attracted particular attention as potential sources of high-energy cosmic neutrinos. Testing this hypothesis is challenging because of the missing gamma-ray counterpart, hence the identification of other electromagnet…
View article: The high energy X-ray probe (HEX-P): Galactic PeVatrons, star clusters, superbubbles, microquasar jets, and gamma-ray binaries
The high energy X-ray probe (HEX-P): Galactic PeVatrons, star clusters, superbubbles, microquasar jets, and gamma-ray binaries Open
HEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging ( FWHM) and broad spectral coverage (0.2–80 keV) with an effective area far superior to current facilities (including XMM-Newton and NuSTAR) to…
View article: The high energy X-ray probe (HEX-P): Galactic PeVatrons, star clusters, superbubbles, microquasar jets, and gamma-ray binaries
The high energy X-ray probe (HEX-P): Galactic PeVatrons, star clusters, superbubbles, microquasar jets, and gamma-ray binaries Open
HEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging (<10" FWHM) and broad spectral coverage (0.2–80 keV) with an effective area far superior to current facilities (including XMM-Newton and NuSTAR)…
View article: On the hadronic origin of the TeV radiation from GRB 190114C
On the hadronic origin of the TeV radiation from GRB 190114C Open
The recently discovered TeV emission from Gamma-Ray Bursts (GRBs) has renewed the long-standing discussion about the hadronic versus leptonic origin of the observed GRB radiation. In this work, we investigate the possibility that the very …
View article: Mass and wind luminosity of young Galactic open clusters in Gaia DR2
Mass and wind luminosity of young Galactic open clusters in Gaia DR2 Open
Context. Star clusters constitute a significant part of the stellar population in our Galaxy. The feedback processes they exert on the interstellar medium impact multiple physical processes from the chemical to the dynamical evolution of t…
View article: Searches for neutrino counterparts of gravitational waves from the LIGO/Virgo third observing run with KM3NeT
Searches for neutrino counterparts of gravitational waves from the LIGO/Virgo third observing run with KM3NeT Open
The KM3NeT neutrino telescope is currently being deployed at two different sites in the Mediterranean Sea. First searches for astrophysical neutrinos have been performed using data taken with the partial detector configuration already in o…
View article: Searches for neutrinos in the direction of radio-bright blazars with the ANTARES telescope
Searches for neutrinos in the direction of radio-bright blazars with the ANTARES telescope Open
Active galaxies, especially blazars, are among the most promising neutrino source candidates. To date, ANTARES searches for these objects considered GeV-TeV $γ$-ray bright blazars. Here, a statistically complete radio-bright blazar sample …