Objectives (shared with WG4, WG5 and WG6)
To analyze the current state of the art of the experimental astronomy of each type of cosmic messenger with respect to the Action’s challenge and identify opportunities for improving the analysis strategies which are currently being followed, in the light of the theoretical frameworks and considerations of WG1 and WG2. To provide WG1 and WG2 with the technical details related to the detection of each type of astrophysical messenger, which need to be considered for a correct phenomenological and theoretical interpretation of the experimental results. To develop new analysis strategies that combine the observations of gamma rays, cosmic rays, neutrinos and gravitational waves for the search of quantum gravity signatures in the framework of multi-messenger astronomy. These new
strategies should be developed in close cooperation with WG1 and specially with WG2. Finally, these WGs will transfer the Action’s motivations, progress and results, to their respective communities of experimentalists to promote their interest on the Action’s challenge.
Set-up, maintain and regularly update a database of all existing results on LIV based on time of flight studies with gamma-rays; compare the methods and results of different studies; establish a common strategy and optimal method for analyzing data from different source classes [GRB, active galactic nuclei (AGN), pulsars] and different instruments (ground-based Cherenkov telescopes, satellite detectors), using the triggers from observations in other wavelengths and messengers, and taking into account both the status of already published proto-population studies (mostly with GRBs), and future population studies that will consider data from tens of objects and different experiments (IACTs, satellites) combined together; work on our understanding of the sources themselves in order to isolate source-intrinsic temporal effects, which will allow to put more stringent constraints on LIV; develop a standard to characterize atmospheric aerosols based on LIDAR (Light Detection and Ranging) and stellar extinction measurements, and provide the corresponding corrections to IACT data, based on tailored Monte Carlo simulations; devise strategy for observing more astrophysical phenomena suitable for LIV studies with pointing instruments (e.g. AGN flares observed with IACT); in cooperation with WG1-2, identify possible signatures in gamma-ray signals of other hypothetical phenomena (e.g. axion-like particles).
- Year 1: Set-up a database of all existing results on LIV based on gamma-rays and publish it on web page. Compare the results and methods used.
- Year 2: Optimization of strategies and methods for performing LIV studies based on gamma-rays, benefitting at best from AGN flare observation strategies conceived for astrophysical studies.
- Year 3: List of possible signatures in gamma-ray signals of other hypothetical phenomena and possible methods for detecting signatures.
- Year 4: Development of multi-messenger search strategies based on the phenomenological models developed by WG1 and WG2.
Joint WG3-WG4-WG5 deliverables and activities
- Publicly available web page with results of LIV studies based on each cosmic messenger.
- Optimal strategy and method for performing LIV studies (including future experiments and a multi-messenger approach).
- Publications, and contributions to conferences.
- Contributions to the communication and outreach activities.
- Organization of regular video conferences
- Organization of workshops for specific topics involving also WG1-2
|Adam Nepomuk Otte||Georgia Institute of Technology||USA|
|Alasdair Gent||Georgia Institute of Technology||USA|
|Alessandro de Angelis||University & INFN Padova||Italy|
|Andrea Addazi||INFN Roma 2||Italy|
|Antonino Marcianò||INFN Frascati LNF||Italy|
|Aurora Clerici||University of Nova Gorica||Slovenia|
|Bo-Qiang Ma||Peking University||China|
|Cédric Perennes||University & INFN Padova||Italy|
|Christian Pfeifer||ZARM, University of Bremen||Germany|
|Christopher Eckner||University of Nova Gorica||Slovenia|
|Daniel Kerszberg||IFAE Barcelona||Spain|
|Dijana Dominis Prester||University of Rijeka||Croatia|
|Dragoljub Gocanin||University of Belgrade||Serbia|
|Dusan Mandat||Institute of Physics of the Czech Academy of Sciences||Czech Republic|
|Fabian Schüssler||IRFU / CEA Paris-Saclay||France|
|Foteini Oikonomou||Southern Observatory (Munich)||Germany|
|Gabrijela Zaharijas||University of Nova Gorica||Slovenia|
|Germano Nardini||University of Stavanger||Norway|
|Giovanni Amelino-Camelia||University of Naples||Italy|
|Günter Sigl||Universität Hamburg||Germany|
|Humberto Martinez-Huerta||Universidad Autónoma de Chiapas (UNACH)||Mexico|
|Jean-François Glicenstein||IRFU, CEA Paris-Saclay||France|
|Jean-Luc Atteia||IRAP, CNRS/Université de Toulouse||France|
|Jelena Strišković||University of Rijeka||Croatia|
|John Ellis||King’s College London||UK|
|José Javier Relancio||Universidad de Zaragoza||Spain|
|José Luis Cortés||Universidad de Zaragoza||Spain|
|José Manuel Carmona||Universidad de Zaragoza||Spain|
|Julian Sitarek||University of Lodz||Poland|
|Julien Bolmont||Montpellier University||France|
|Karl Mannheim||Institute for Theoretical Physics and Astrophysics||Germany|
|Katja Dzepina||University of Rijeka||Croatia|
|Lucia Aurelia Popa||ISS (Institute of Space Science)||Romania|
|Lukas Zehrer||University of Nova Gorica||Slovenia|
|Malcolm Fairbairn||King’s College London||UK|
|Manel Martinez||IFAE Barcelona||Spain|
|Marcos López Moya||Universidad Complutense de Madrid||Spain|
|Marija Čargonja||University of Rijeka||Croatia|
|Marina Manganaro||University of Rijeka||Croatia|
|Markus Gaug||Universitat Autònoma de Barcelona||Spain|
|Markus Gaug||Universitat Autònoma de Barcelona||Spain|
|Masha Chernyakova||Dublin City University||Ireland|
|Maykoll Reyes||Universidad de Zaragoza||Spain|
|Michele Doro||University & INFN Padova||Italy|
|Nikolaos E Mavromatos||King’s College London||UK|
|Petr Satunin||Instute for Nuclear Research of RAS (INR RAS), Moscow||Russia|
|Rafael Alves Batista||Radboud University||Netherlands|
|Rodrigo Gracia Ruiz||IPHC lab, Strasbourg||France|
|Saeed Rastgoo||York University||Canada|
|Sidika Merve Colak||IFAE Barcelona||Spain|
|Spyros Basilakos||Research Center for Astronomy & Applied Mathematics, Academy of Athens, and National Observatory of Athens||Greece|
|Stefan Funk||Friedrich-Alexander-University Erlangen-Nuernberg||Germany|
|Subir Sarkar||University of Oxford||UK|
|Tomislav Terzić||University of Rijeka||Croatia|
|Tsvi Piran||The Hebrew University||Israel|
|Vasiliki Mitsou||IFIC (UV-CSIC)||Spain|
|Voja Radovanovic||University of Belgrade||Serbia|