S'authentifier

Cosmic Rays and Neutrinos in the Multi-Messenger Era

9–13 déc. 2024
Paris
Fuseau horaire Europe/Paris

Liste des contributions

77 / 77
1. Registration
09/12/2024 08:30
2. Welcome
Dmitri SEMIKOZ (APC, Paris)
09/12/2024 09:00
3. Telescope Array results
Yoshiki Tsunesada
09/12/2024 09:10
4. Auger results
Ralph Engel
09/12/2024 09:40
5. New developments in EPOS : toward a global approach from Heavy Ions to Cosmic Rays
Tanguy Pierog
09/12/2024 10:30
6. QGSJet 3.1
Sergey Ostapchenko
09/12/2024 11:00
7. Discussion UHECR
09/12/2024 11:30
8. GMF I
Prof. Han
09/12/2024 13:30
GMF
9. GMF II
Prof. Michael Unger
09/12/2024 14:00
GMF
10. GMF III
Alexander Korochkin (ULB, Bruxelles)
09/12/2024 14:30
GMF
11. Does the Local Bubble bias Galactic magnetic field models used to backtrack UHECRs?
Vincent Pelgrims
09/12/2024 15:00
GMF
12. Discussion GMF
09/12/2024 16:00
13. Poster Talks
09/12/2024 17:00
14. Wine & cheese poster discussion
09/12/2024 18:00
15. EGMF1
Franco Vazza
10/12/2024 09:00
16. EGMF2
Klaus Dolag
10/12/2024 09:30
18. UHECR sources search review
Teresa Bister
10/12/2024 10:00
17. Dipole Anisotopies UHECR
Glennys Farrar
10/12/2024 11:00
19. Discussion UHECR sources
10/12/2024 11:30
55. Cosmic ray feedback and magnetic dynamos in galaxy formation
Christoph Pfrommer
10/12/2024 13:30
20. Theory propagation <-> GMF
Gwenael Giacinti
10/12/2024 14:00
21. Theory acceleration
Luca Comisso
10/12/2024 14:30
22. CR other experiments and IceTop; connection to HE
Denis Soldin
10/12/2024 15:00
23. LHAASO CRs
Huihai He
10/12/2024 16:00
25. Galactic diffuse gamma-rays (theory)
Andrii Neronov
10/12/2024 16:30
26. Discussion
10/12/2024 17:00
27. Cherenkov telescopes new
Jim Hinton
11/12/2024 09:00
28. LHAASO gamma-ray review
Zhen Cao
11/12/2024 09:30
29. Leptonic/PSW nebula
D. Khangulyan
11/12/2024 10:00
30. TeV halos
T. Linden
11/12/2024 11:00
31. SNR acceleration
J. Vink
11/12/2024 11:30
32. SNR Hadronic PeVatrons observations
Ruizhi Yang
11/12/2024 13:30
MM
33. Hadronic PeVatrons/Super-bubbles
Thibault Vieu
11/12/2024 14:00
MM
48. High-Energy Multimessenger Emission from Supermassive Black Holes
Kohta Murase
11/12/2024 14:30
MM
34. Discussion
11/12/2024 15:00
MM
35. Poster Talks
11/12/2024 16:00
36. Wine & cheese poster discussion
11/12/2024 18:00
37. General update neutrinos
Francis Halzen
12/12/2024 09:00
38. The ANTARES legacy results
Antoine Kouchner
12/12/2024 10:00
39. Baikal GVD
Rastislav Dvornicky
12/12/2024 11:00
41. IceCube from MeV to PeV
Erin O'Sullivan
12/12/2024 11:30
40. KM3NeT from MeV to PeV
Aart Heijboer
12/12/2024 12:00
42. Radio detection of neutrinos
Kumiko Kotera
12/12/2024 14:00
43. Galactic neutrino searches (combined)
Naoko Kurahashi
12/12/2024 14:30
44. High energy astrophysical neutrinos: Open questions and future prospects
Eli Waxman
12/12/2024 15:00

The main goals of high-energy neutrino astronomy are to identify the sources of high-energy cosmic rays, particularly ultra-high-energy ones, and to provide information on the acceleration process and constraints on models of high-energy astronomical objects. The detection of high-energy astronomical neutrinos demonstrates the potential for achieving these goals. I will discuss what we have...
45. Discussion
12/12/2024 15:30
47. MM in transients
Walter Winter
12/12/2024 16:30
46. Real-time astronomy
Marcos Santander
12/12/2024 17:00
49. Connection gamma-neutrino-CR
Foteini Oikonomou
12/12/2024 17:30
50. New physics with neutrino telescopes
Carlos Argüelles
12/12/2024 18:00
51. DAMPE: B/C, heavier nuclei, e^++e^-
Francesca Alemanno
13/12/2024 09:00
52. CALET, B/C, heavier nuclei, e^++e^-
Paolo Maestro
13/12/2024 09:30
53. AMS-02: Be9/10, escape times
Alberto Oliva
13/12/2024 10:00
54. Interpretation breaks 200GV, 10TV: source/diffusion
Carmelo Evoli
13/12/2024 11:00
56. Discussion
13/12/2024 12:00
57. Conference summary
Felix Aharonian
13/12/2024 12:30
65. A search for neutron fluxes from Galactic candidate sources using data from the Pierre Auger Observatory

Since neutral particles are not deflected by magnetic fields, they are a valuable tool for studying the sources of ultra-high-energy cosmic rays (UHECRs). It is expected that sources of UHECRs will also produce neutrons through nuclear interactions and photo-pion production near the source. Free neutrons undergo beta decay, traveling a typical distance of $9.2\times(E/1\,\mathrm{EeV})$ kpc. As...
63. Cherenkov Telescope Array Observatory sensitivity to heavy Galactic Cosmic Rays

Finding the sources responsible for accelerating Galactic Cosmic-Rays (GCRs) to energies up to PeV remains a challenging research topic. Observations of high-energy gamma-rays by the Cherenkov Telescope Array Observatory (CTAO) would help us to identify these sources, called PeVatrons. These gamma-rays emerge from the interaction of CRs with surrounding matter through the π0 process and can be...
78. Energy dependence of the knee in the cosmic-ray spectrum across the Milky Way

The all-particle spectrum of cosmic rays measured at Earth has a knee-like feature around 4 PeV. A priori, it is not clear if this is a local feature specific to the Solar neighbourhood in the Milky Way, or if it is a generic property of the Galactic cosmic-ray spectrum. We argue that combining gamma-ray and cosmic-ray data of LHAASO indicates that the knee is a local feature. In order to...
72. Fast Radio Burst Sources and Neutrinos in the Multi-Messenger Context

Fast Radio Bursts (FRBs) are millisecond-long electromagnetic emissions originating from extra-galactic sources, characterized by unprecedented energies in the radio domain. Their properties are consistent with the hypothesis of turbulent, highly magnetized, and dense media surrounding their sources. These sources are strong candidates for multi-messenger emissions, partly due to the huge...
61. Gamma-ray signatures of particle acceleration at stellar wind termination shocks up to PeV energies

Young massive stellar clusters have recently brought attention as PeVatrons candidates, to explain the knee of the cosmic ray spectrum and how protons can be accelerated to such energy scale in galactic sources. The new detector LHAASO is the first to probe well the photon detection band >0.1 PeV, that can correspond to multi-PeV hadronic cosmic rays. Thus, it enables the use of its gamma-ray...
69. High-energy neutrino astrophysics with the KM3NeT telescope

KM3NeT is a neutrino telescope located in the depths of the Mediterranean Sea. It consists of two sites, ARCA (off the Sicilian coast of Capo Passero) dedicated to the study of astrophysical neutrinos and ORCA (off the French coast of Toulon), optimised for GeV - TeV energies.
The two detectors are still under construction and should be completed in the next few years. However, the first...
74. Incorporating theoretical blazar models into neutrino stacking analyses with KM3NeT/ARCA

After IceCube’s identification of the blazar TXS 0506+056 as the first cosmic neutrino source candidate, blazars have started to be considered among the most promising neutrino source classes. An improvement of the observations is expected thanks to the development of next-generation neutrino telescopes, such as KM3NeT/ARCA. KM3NeT/ARCA is a deep-sea Cherenkov neutrino telescope currently...
73. Insights from modelling the brightest Fermi-LAT blazar flare

The electromagnetic flare of the flat-spectrum radio quasar (FSRQ) 3C 454.3 in November 2010 was the brightest $\gamma$-ray flare ever observed by the Fermi-LAT from a blazar. We performed the data analysis of the multiwavelength (from infrared photons to $\gamma$ rays) quasi-simultaneous 1-day-averaged spectral-energy distributions (SEDs) for seven days of the flare and modelled the...
81. Investigating the neutrino signatures of candidate neutrino-emitter blazars

Active galactic nuclei are compelling candidates for astrophysical neutrino sources, as suggested by the detection of a high-energy neutrino positionally consistent with the flaring blazar TXS 0506+056 and evidence of neutrino emission from the nearby Seyfert galaxy NGC 1068. Our recent studies based on the IceCube time-integrated sky maps provided evidence of a statistically significant...
80. J1048+7143: A Supermassive Black Hole Binary Candidate*

Coincident quasi-periodic oscillations are observed in the gamma-ray, optical and radio light curves from the blazer J1048+7143. While in gamma rays and optical, the flares consist of two subflares each, the radio emissions show a Gaussian-like flare structure.

Here, we show that all these flares are consistent with a supermassive binary black hole at the center of this blazar, caused by...
77. LHAASO detection of Ultra-high-energy Gamma-Ray Emissions from the Giant Molecular Clouds

Gain Molecular Clouds (GMCs) are massive reservoirs of gas and dust, with masses typically around 10$^{5}$ M$_⊙$. GMCs are critical regions for studying Cosmic Ray (CR) interactions and their effects on interstellar medium (ISM). We selected six GMCs, which are at high galactic latitude and in the field of view of LHAASO. These GMCs are within 1 kpc distance from the Sun. By using the data...
79. Monitoring the northern sky and follow-up analysis of the multi-messenger alerts with LHAASO-WCDA

With high duty cycle, wide field of view and high sensitivity, LHAASO-WCDA is a promising facility to monitor very-high-energy transient extra-galactic sources unbiasedly. We developed an real-time monitoring system based on LHAASO-WCDA observations which will send alerts within Half a day at most if there is any detection. In the past one year of operation, the system has detected more then...
75. Neutrino follow-up observations with the High Energy Stereoscopic System (HESS)

Realtime alerts have become a cornerstone of multi-messenger astronomy since the past decade. Electromagnetic (EM) observatories operating in various wavelength-bands regularly follow up alerts issued by other EM facilities and more commonly by the neutrino and gravitational wave (GW) observatories across the world. While the localization of GW wave alerts in the sky is rather large at...
59. Observing Scenarios and Multi-messenger Implications for the International Gravitational- Wave Network during O4 and O5

An advanced LIGO and Virgo's third observing run brought another binary neutron star merger (BNS) and the first neutron-star black hole mergers. While no confirmed kilonovae were identified in conjunction with any of these events, continued improvements of analyses surrounding GW170817 allow us to project constraints on the Hubble Constant ($H_0$), the Galactic enrichment from $r$-process...
60. Pulsar RMs observed by FAST and the Galactic magnetic fields

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) is the most sensitive radio telescope for pulsar observations. We make polarimetric measurements for a large number of faint and distant pulsars in the Galactic halo and determined their rotation measures (RM). We also determined a few hundreds of RMs by processing the polarimetric data for newly-discovered pulsars in the project...
68. Search for GeV neutrino counterparts associated with high-energy IceCube neutrinos

IceCube has made significant progress in identifying astrophysical sources of high-energy neutrinos. However, the majority of the astrophysical flux remains unexplained, prompting further investigation. To improve our understanding of this flux and its sources, it is important to investigate the presence of a component at lower neutrino energies. To this end, we propose a study that searches...
71. Status and prospects of the astrophysical GeV neutrino emission searches with IceCube and KM3NeT

In the last decade, neutrino telescopes have probed astrophysical sources to probe cosmic ray acceleration mechanisms and shine light on properties previously unseen. The main neutrino telescopes nowadays are IceCube in the Antarctic ice and KM3NeT under construction in the Mediterranean Sea. These Cherenkov based neutrino telescopes are specially built for neutrino astronomy at TeV and higher...
82. The environment of pulsar halo progenitors

Since the discovery of TeV halos around the Geminga and B0656+14 pulsars by the HAWC experiment in 2017, many theoretical efforts have been dedicated to understanding this source class. Indeed, assuming that they are probing the environment outside their parent supernova remnant (SNR), the gamma-ray emission hints at a confinement of high energy particles that challenges our current...
76. Tracking the gas distribution in the Galactic Centre using neutrinos

The Central Molecular Zone at the Galactic Centre hosts the most massive and densest molecular clouds in our Galaxy. The mass of the clouds could be inferred from the infrared emission of the dust, or line emissions from tracers like CS and CO, but different methods having different assumptions sometimes yield inconsistent results. We propose that neutrinos can act as a new gas tracer to...
62. Ultra-high-energy cosmic rays from ultra-fast outflows of active galactic nuclei

We investigate ultra-fast outflows (UFOs) of active galactic nuclei (AGN) as potential sites for the production of the highest-energy cosmic rays, focusing on cosmic-ray nuclei, a previously unexplored aspect. These mildly-relativistic large-scale outflows, with velocities reaching up to half the speed of light, are ubiquitous in AGN. We numerically study the processes that affect the maximum...
66. Unveiling the hard X-ray emission of NGC 1068, a possible high energy neutrino source

One of the central questions in high-energy astrophysics is the origin of high-energy
cosmic rays and neutrinos. The Seyfert 2 Compton-thick AGN NGC 1068 stands out as a
promising candidate for high-energy neutrino emission, with a significance level of 4.2𝜎.
Various models have been proposed to explain the multi-messenger emission associated
with this source. X-ray data are crucial for...
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