Moderadores
Plenary Session: I
- Juan José Hernández-Rey (IFIC (Univ. of Valencia and CSIC) ES)
Plenary Session: II
- Bryan Zaldivar (IFIC)
Plenary Session: III
- Michela Negro (Louisiana State University)
Plenary Session: IV
- Laura lopez Honorez (VUB)
Plenary Session: V
- Simona Toscano (IIHE - ULB)
Plenary Session: VI
- Valentina De Romeri (IFIC UV/CSIC)
Plenary Session: VII
- aart heijboer (nikhef)
Plenary Session: VIII
- Marco Taoso (INFN Torino)
Plenary Session: IX
- Gabrijela Zaharijas (Center for Astrophysics and Cosmology, University of Nova Gorica)
Plenary Session: X
- Juande Zornoza (IFIC (CSIC-UV))
A new era in gamma-ray astronomy is upon us, thanks to a combination of instruments covering an unprecedented energy range from GeV to PeV. Space-based missions such as Fermi, ground-based Imaging Air Cherenkov Telescopes (IACTs), and extensive air shower arrays now provide a unified view of the most energetic sky. This multi-instrument approach has revealed over 300 sources, all of which are...
More than a decade after the discovery of cosmic neutrinos by the IceCube observatory, the sources of cosmic neutrinos are still largely unknown. Yet, the first neutrino sources have been established over recent years. At the same time, new instruments like KM3NeT and GVD are growing in size and are starting to observe cosmic neutrinos. Sparked on by these successes, initiatives for even...
In this talk I will present the general characteristics of stochastic gravitational wave signals from the early universe and discuss some interesting sources, with a particular focus on first order phase transitions.
Indirect dark matter searches can probe a wide range of DM candidates, from ultra-light particles like axions, to heavy candidates like primordial black holes, by leveraging multi-messenger and multi-wavelength astrophysical and cosmological observations.
In this talk, I will review the current status of these searches, and I will discuss how suitable strategies and future data will advance...
While black holes are typically known as the remnants of stellar collapse, some may have formed in the early universe—these are known as primordial black holes (PBHs). Unlike most dark matter candidates, primordial black holes do not require the introduction of new fundamental physics, making them a compelling possibility. In this talk, I will outline the current observational constraints on...
In this talk, I will review recent developments in high-energy extragalactic astrophysics, particularly concerning high-energy particles, including gamma-rays and neutrinos, in supermassive black holes, blazars, gamma-ray bursts, tidal disruption events, and binary neutron star mergers. We have not found a significant correlation between the arrival directions of ultra-high-energy cosmic rays...
In recent years, remarkable progresses have been made with the direct detection of cosmic rays in space, reshaping our understanding of the origin, acceleration, and propagation of cosmic rays. This talk will summarize the latest experimental findings, including the matter and antimatter in cosmic rays, the primary and secondary components of cosmic nuclei, isotopic energy spectra, and the...
Accurate modeling of cosmic ray spectra and atmospheric lepton fluxes is fundamental to interpreting astrophysical neutrino observations, understanding neutrino oscillations, constraining hadronic interaction models, and enabling applications from new physics searches to muon tomography. This talk presents recent advances in modeling atmospheric muon and neutrino fluxes at multi-GeV to TeV...
The observation of gravitational waves (GWs) by the LIGO-Virgo-KAGRA (LVK) Collaboration has opened an entirely new window to study the universe. The landmark detection of the first signal in 2015, GW150914, confirmed a century-old prediction of General Relativity, initiating the field of Gravitational-Wave Astronomy. Ten years after this first detection, the LVK Collaboration has published...
With bigger and more sensitive detectors, the direct search for dark matter (DM) has experienced a very exciting transformation in the last years, which is enabling us to test candidates beyond the WIMP paradigm. In this talk I will give an overview of the current status of direct DM searches and future directions. I will address the new opportunities for low-mass candidates, non-standard DM...
We use state-of-the-art cosmological hydrodynamical simulations of galaxies within a cold dark matter context, to study recent ‘hot topics’ in galaxy formation at the smallest scales: the existence of low-surface-brightness, ultra diffuse galaxies, the emergence of 'dark galaxies' as well as the role of AGN feedback in the evolution of dwarfs. These predictions, together with future...
Space-based gamma-ray observatories provide continuous, all-sky coverage from a few hundred keV to hundreds of GeV, bridging the hard X-ray and very-high-energy domains accessible from the ground. Instruments such as Swift-BAT, INTEGRAL, Fermi-GBM, and Fermi-LAT, among others, have enabled precision studies of non-thermal processes in astrophysical sources, cosmological measurements through...
The origin and nature of cosmic rays remain some of the most intriguing questions in astroparticle physics. This talk will review the latest developments in CR physics, focusing on findings from major air shower arrays operating in hybrid mode. Key results on the CR energy spectrum, composition, and arrival directions will be presented. The talk will also highlight the future prospects for CR...
Neutrinos herald the dawn of multi-messenger astronomy, carrying signatures of the yet mysterious physics governing the most energetic sources in our universe. Recent developments on the role of neutrinos in cosmic sources will be reviewed together with the most exciting multi-messenger detection prospects.
The direct detection of gravitational waves has opened a new observational window onto the Universe, transforming both fundamental physics and astrophysics. A global network of ground-based interferometers — including the Advanced LIGO, Advanced Virgo, and KAGRA detectors — is now operating at unprecedented sensitivities, routinely detecting signals from compact binary coalescences. I will...
In my talk I will briefly introduce dark matter scenarios beyond the vanilla WIMP (and cold) dark matter models. I will then move to feebly interacting to non-interacting dark matter scenarios which can be challenging to probe. Yet they may leave specific imprint in cosmology observables. I will in particular focus on Non-Cold dark matter signatures that can be expected when the dark matter...
Modern Cosmology has become a precise discipline thanks to immense improvements in Cosmic Microwave Background (CMB) and Large Scale Structure (LSS) observations, in addition to an ameliorated theoretical description of cosmological models. However, this precision uncovered tensions between datasets that challenge the standard model of Cosmology, ΛCDM. In this talk, I present a brief overview...
The field of ground-based gamma-ray astronomy is in the midst of a transformative era, with the current generation of instruments revealing a rich and intricate view of non-thermal astrophysics in the TeV–PeV energy range. At the same time, a new generation of observatories is being planned or built, promising a major step forward in our understanding of numerous astrophysical systems, as well...
Recent VHE and UHE observations of Galactic sources are at last identifying the key extreme Galactic particle accelerators. This suggests that we may soon be able to address the physics underpinning the origin of the locally measured knee feature in the cosmic-ray spectrum. I will review some of these findings, and discuss their implications.
After more than a decade since the advent of neutrino astronomy, the origin of most of the diffuse astrophysical neutrino flux observed by IceCube remains unresolved. Notably, while IceCube has yet to detect any neutrino events above 10 PeV, the KM3NeT collaboration has recently reported the observation of the highest-energy neutrino ever detected. Ultra-high-energy (UHE) neutrinos (E > 10...
Strong gravitational lensing at gamma rays is mostly unexplored, with only two confirmed strong lenses emitting at these energies. Despite their rarity, these two objects offer a unique window into high-energy astrophysical sources at high redshifts. The paucity of lenses at gamma rays is primarily due to challenges in detecting and confirming them using standard methods, as the angular...
Axion-like particles are hypothetical low-mass weakly coupled particles that appear naturally in many extensions of the standard model and can have a surprising number of potentially detectable effects in astrophysics and cosmology. In this talk we will review and update the theoretical motivation for their existence, the abundant astrophysical probes at our disposal and the recent boom in...
The 21-cm hyperfine line of HI is set to revolutionize studies of the first billion years, spanning the cosmic dawn of the first stars and eventual reionization of our Universe. I will discuss the potential of this probe in learning about the unknown astrophysics of the first galaxies as well as physical cosmology. Preliminary claims of a detection of the mean (sky-averaged) 21cm signal...
This presentation covers aspects - from a theoreticians point of view - of some recent developments on extragalactic low-power gamma-ray sources, with focus on active galactic nuclei.
The nature of dark matter, one of the most compelling open questions in fundamental physics, is still unknown. A comprehensive search program has developed over the past decades, spanning direct detection experiments, indirect detection via astrophysical signals, and collider-based production. In this talk, we focus on collider searches for dark matter, particularly at the Large Hadron...
Multimessenger astrophysics represents a unique opportunity to link particle physics, astronomy, and cosmology. The method for combining different observational probes has been opened up by the opportunity to relate traditional multiwavelength astronomy with the advent of refined and more sensitive neutrino detectors, γ-ray telescopes, gravitational wave interferometers, and space and...
In this talk I will review some recent developments in direct detection methods looking for wavelike dark matter including axion dark matter.
In this talk I will survey the complementarity of cosmological and laboratory probes with various developments in elementary particle theory, including dark sector physics and non-standard cosmological histories.
