Cosmic Ray Anisotropy Workshop 2023
from
Tuesday, 16 May 2023 (07:00)
to
Friday, 19 May 2023 (17:00)
Monday, 15 May 2023
Tuesday, 16 May 2023
08:00
Registration
Registration
08:00 - 08:30
Room: Chicago, Illinois
08:30
Welcome
-
Rasha Abbasi
(Loyola University Chicago)
Welcome
Rasha Abbasi
(Loyola University Chicago)
08:30 - 08:45
Room: Chicago, Illinois
08:45
Recent Results in Cosmic-Ray Astrophysics
-
Carmelo Evoli
(Gran Sasso Science Institute)
Recent Results in Cosmic-Ray Astrophysics
Carmelo Evoli
(Gran Sasso Science Institute)
08:45 - 09:30
Room: Chicago, Illinois
09:30
Turbulence and CR propagation (remote)
-
Gwenael Giacinti
Turbulence and CR propagation (remote)
Gwenael Giacinti
09:30 - 10:05
Room: Chicago, Illinois
10:05
Recent Progress in Direct Measurements of Cosmic Rays (remote)
-
Eun-Suk Seo
(University of Maryland)
Recent Progress in Direct Measurements of Cosmic Rays (remote)
Eun-Suk Seo
(University of Maryland)
10:05 - 10:40
Room: Chicago, Illinois
10:40
Coffee break
Coffee break
10:40 - 11:10
Room: Chicago, Illinois
11:10
Observation of cosmic-ray anisotropy with LHAASO (remote)
-
Wei Gao
Observation of cosmic-ray anisotropy with LHAASO (remote)
Wei Gao
11:10 - 11:45
Room: Chicago, Illinois
11:45
Indirect Measurements of galactic Cosmic Rays
-
Giuseppe Di Sciascio
Indirect Measurements of galactic Cosmic Rays
Giuseppe Di Sciascio
11:45 - 12:20
Room: Chicago, Illinois
12:20
Lunch break
Lunch break
12:20 - 14:00
Room: Chicago, Illinois
14:00
Living in the Bubble: structure, formation, and how it affects us
-
Efrem Maconi
Living in the Bubble: structure, formation, and how it affects us
Efrem Maconi
14:00 - 14:35
Room: Chicago, Illinois
14:35
CR anisotropy with IceCube
-
Rasha Abbasi
(Loyola University Chicago)
Frank McNally
(Mercer University)
CR anisotropy with IceCube
Rasha Abbasi
(Loyola University Chicago)
Frank McNally
(Mercer University)
14:35 - 15:10
Room: Chicago, Illinois
15:10
Transport of Galactic Cosmic-Ray Nuclei
-
Benedikt Schroer
Transport of Galactic Cosmic-Ray Nuclei
Benedikt Schroer
15:10 - 15:45
Room: Chicago, Illinois
15:45
Coffee break
Coffee break
15:45 - 16:15
Room: Chicago, Illinois
16:15
Cosmic rays in a turbulent interstellar medium: Recent progress and open questions
-
Philipp Mertsch
Cosmic rays in a turbulent interstellar medium: Recent progress and open questions
Philipp Mertsch
16:15 - 17:00
Room: Chicago, Illinois
17:00
Discussion
Discussion
17:00 - 18:00
Room: Chicago, Illinois
19:00
Welcome Reception
Welcome Reception
19:00 - 20:00
Room: Chicago, Illinois
Wednesday, 17 May 2023
08:00
Registration
Registration
08:00 - 08:45
Room: Chicago, Illinois
08:45
Selected Aspects of Magnetized Turbulence (with implications for CRs)
-
Alex Lazarian
Selected Aspects of Magnetized Turbulence (with implications for CRs)
Alex Lazarian
08:45 - 09:30
Room: Chicago, Illinois
09:30
Second order Fermi Acceleration in Galaxy Clusters
-
Gianfranco Brunetti
Second order Fermi Acceleration in Galaxy Clusters
Gianfranco Brunetti
09:30 - 10:00
Room: Chicago, Illinois
10:00
CR Acceleration in Turbulent Magnetic Reconnection (remote)
-
Elisabete de Gouveia Dal Pino
(IAG - Universidade de São Paulo)
CR Acceleration in Turbulent Magnetic Reconnection (remote)
Elisabete de Gouveia Dal Pino
(IAG - Universidade de São Paulo)
10:00 - 10:30
Room: Chicago, Illinois
10:30
Coffee break
Coffee break
10:30 - 11:00
Room: Chicago, Illinois
11:00
Cosmic ray diffusion in anisotropic MHD turbulence
-
Siyao Xu
Cosmic ray diffusion in anisotropic MHD turbulence
Siyao Xu
11:00 - 11:30
Room: Chicago, Illinois
11:30
Results from the High Altitude Water Cherenkov Observatory
-
Miguel Mostafa
Results from the High Altitude Water Cherenkov Observatory
Miguel Mostafa
11:30 - 12:00
Room: Chicago, Illinois
12:00
Constraining the sources of ultra-high-energy cosmic rays with the Pierre Auger Observatory
-
Teresa Bister
Constraining the sources of ultra-high-energy cosmic rays with the Pierre Auger Observatory
Teresa Bister
12:00 - 12:30
Room: Chicago, Illinois
12:30
Lunch break
Lunch break
12:30 - 14:00
Room: Chicago, Illinois
14:00
Results from TA
-
Tareq Abu-Zayyad
Results from TA
Tareq Abu-Zayyad
14:00 - 14:30
Room: Chicago, Illinois
14:30
Cosmic Ray Anisotropy with the Telescope Array
-
Jihyun Kim
Cosmic Ray Anisotropy with the Telescope Array
Jihyun Kim
14:30 - 15:00
Room: Chicago, Illinois
15:00
New Models of the Magnetic Field of the Galaxy
-
Michael Unger
New Models of the Magnetic Field of the Galaxy
Michael Unger
15:00 - 15:30
Room: Chicago, Illinois
15:30
Coffee break
Coffee break
15:30 - 16:00
Room: Chicago, Illinois
16:00
UHECR anisotropies
-
Glennys Farrar
UHECR anisotropies
Glennys Farrar
16:00 - 16:45
Room: Chicago, Illinois
16:45
Discussion
Discussion
16:45 - 18:00
Room: Chicago, Illinois
Thursday, 18 May 2023
08:00
Registration
Registration
08:00 - 08:45
Room: Chicago, Illinois
08:45
Heliosphere in the Local Interstellar Medium
-
Nick Pogorelov
Heliosphere in the Local Interstellar Medium
Nick Pogorelov
08:45 - 09:30
Room: Chicago, Illinois
09:30
The IBEX Ribbon and its Relation to the Solar-Interstellar Interaction (remote)
-
Eric Zirnstein
The IBEX Ribbon and its Relation to the Solar-Interstellar Interaction (remote)
Eric Zirnstein
09:30 - 10:00
Room: Chicago, Illinois
10:00
Cosmic ray pitch angle anisotropies in the Very Local Interstellar Medium
-
Jaime Rankin
Cosmic ray pitch angle anisotropies in the Very Local Interstellar Medium
Jaime Rankin
10:00 - 10:30
Room: Chicago, Illinois
10:30
Coffee break
Coffee break
10:30 - 11:00
Room: Chicago, Illinois
11:00
Review of the Local ISM
-
Jeff Linsky
Review of the Local ISM
Jeff Linsky
11:00 - 11:45
Room: Chicago, Illinois
11:45
Turbulence in the local ISM
-
Federico Fraternale
Turbulence in the local ISM
Federico Fraternale
11:45 - 12:15
Room: Chicago, Illinois
12:15
The curious maximum-rigidity distribution of ultra-high-energy-cosmic-ray accelerators
-
Foteini Oikonomou
(Norwegian University of Science and Technology)
The curious maximum-rigidity distribution of ultra-high-energy-cosmic-ray accelerators
Foteini Oikonomou
(Norwegian University of Science and Technology)
12:15 - 12:45
Room: Chicago, Illinois
A standard assumption among models of candidate source populations of ultra-high energy cosmic rays (UHECRs) is that all sources in a candidate source population accelerate particles to the same maximum energy. Motivated by the fact that candidate astrophysical accelerators exhibit a vast diversity in terms of their relevant properties, such as luminosity, Lorentz factor, and magnetic field strength, we study the compatibility of a population of sources with non-identical maximum cosmic-ray energies with the observed energy spectrum and composition of UHECRs at Earth. For this purpose, we compute the UHECR spectrum emerging from a population of sources with a power-law, or broken-power-law, distribution of maximum energies applicable to a broad range of astrophysical scenarios. We find that for a wide range of studied models, the maximum energies of the UHECR accelerators must be nearly identical in order to be compatible with the UHECR data, in stark contrast to the variance expected for the astrophysical source models considered. A substantial variance of the maximum energy is only consistent with the UHECR data if the maximum energies of the UHECR sources follow a broken power-law distribution with a very steep spectrum above the break. However, in this scenario, the individual source energy spectra must be unusually hard with increasing energy output as a function of energy. These findings have implications for the arrival-direction distribution of UHECRs.
12:45
Lunch break
Lunch break
12:45 - 14:15
Room: Chicago, Illinois
14:15
Configuration of Interstellar Magnetic Field Surrounding the Heliosphere (remote)
-
Priscilla Frisch
Configuration of Interstellar Magnetic Field Surrounding the Heliosphere (remote)
Priscilla Frisch
14:15 - 14:45
Room: Chicago, Illinois
14:45
Heliosphere and TeV CR anisotropy
-
Ming Zhang
(Florida Institute of Technology)
Heliosphere and TeV CR anisotropy
Ming Zhang
(Florida Institute of Technology)
14:45 - 15:15
Room: Chicago, Illinois
15:15
Modeling of cosmic-ray anisotropy at TeV energies in an MHD model heliosphere
-
Takashi Sako
Modeling of cosmic-ray anisotropy at TeV energies in an MHD model heliosphere
Takashi Sako
15:15 - 15:45
Room: Chicago, Illinois
15:45
Coffee break
Coffee break
15:45 - 16:15
Room: Chicago, Illinois
16:15
The Relationship between the Local ISM Distribution and Milky Way Spiral Structure
-
Robert Benjamin
The Relationship between the Local ISM Distribution and Milky Way Spiral Structure
Robert Benjamin
16:15 - 17:00
Room: Chicago, Illinois
17:00
17:00 - 18:00
Room: Chicago, Illinois
19:00
19:00 - 22:00
Room: Chicago, Illinois
Friday, 19 May 2023
08:45
IceCube: The first Decade of Neutrino Astronomy
-
Francis Halzen
(University of Wisconsin–Madison)
IceCube: The first Decade of Neutrino Astronomy
Francis Halzen
(University of Wisconsin–Madison)
08:45 - 09:30
Room: Chicago, Illinois
09:30
Cross-correlation studies with UHECRs (remote)
-
Federico Urban
Cross-correlation studies with UHECRs (remote)
Federico Urban
09:30 - 10:00
Room: Chicago, Illinois
10:00
Coffee break
Coffee break
10:00 - 10:30
Room: Chicago, Illinois
10:30
Local Sources of Cosmic Rays
-
Igor Moskalenko
Local Sources of Cosmic Rays
Igor Moskalenko
10:30 - 11:00
Room: Chicago, Illinois
11:00
Wrapping up and Collecting thoughts on Cosmic Ray Astrophysics
-
Pasquale Blasi
Wrapping up and Collecting thoughts on Cosmic Ray Astrophysics
Pasquale Blasi
11:00 - 11:45
Room: Chicago, Illinois
11:45
11:45 - 12:45
Room: Chicago, Illinois