BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Journées de l'AT-PEM 2026 - Défis numériques en astrophysique d
 es hautes énergies
DTSTART:20261118T124500Z
DTEND:20261120T163000Z
DTSTAMP:20261114T005900Z
UID:indico-event-39545@indico.in2p3.fr
CONTACT:arno.vanthieghem@obspm.fr
DESCRIPTION:Numerical Challenges in High-Energy Astrophysics\nRegistration
  deadline: 25/09/2026\nThe "Action Thématique Phénomènes Extrêmes et M
 ulti-messagers" (AT-PEM\, formerly PNHE) has been an INSU thematic action 
 since 2011 and is also supported by IN2P3\, INP\, CNES\, and CEA/IRFU.\nRa
 tionale:\nMulti-messenger astrophysics has opened unprecedented windows on
 to extreme astrophysical phenomena. Processing and interpreting these obse
 rvations require increasingly sophisticated models capable of bridging vas
 t spatial and temporal scales\, coupling complex physical processes\, and 
 exploiting modern high-performance computing architectures.\nThe 2026 edit
 ion of the AT-PEM days aims to highlight these challenges by bringing toge
 ther observers\, theorists\, and numerical modelers to discuss the tools a
 nd approaches used within the High-Energy Astrophysics community in France
 .\nA key objective of the meeting is to foster discussion across communiti
 es\, identify current limitations of existing approaches\, and outline fut
 ure directions for numerical modeling.\nStructure:\nThe event will be stru
 ctured around five broadly defined themes\, each corresponding to one full
  session:\n\nTransport and diffuse backgrounds\,\nRelativistic jets\,\nSup
 ernovae\,\nAccreting black holes\,\nMagnétospheres.\n\nEach session will 
 start with a one-hour invited observational review talk\, followed by a se
 ries of invited\, contributed\, and flash talks\, and a concluding session
 \, all focusing on numerical aspects of the topic.\nPractical informations
 :\n\nRegistration required (free) - Deadline: 25/09/2026\nIn person\nStart
 : 18 November 2026 at 2 PM\nEnd: 20 November 2026 at 5.30 PM\nLocation: Am
 phithéâtre Charpak\, Sorbonne Université\, campus Jussieu\, Paris\n\n 
 \nOrganizing Committee: Arno Vanthieghem (LUX\, arno.vanthieghem@obspm.fr)
 \, Benoît Cerutti (IPAG)\, Astrid Lamberts (OCA)\, Alexandre Marcowith (L
 UPM)\, Pierre-Olivier Petrucci (IPAG)\, Peggy Varnière (APC)\, Cristina V
 olpe (APC)\n \n\nhttps://indico.in2p3.fr/event/39545/
LOCATION:Amphithéâtre Charpak (Sorbonne Université\, campus Jussieu)
URL:https://indico.in2p3.fr/event/39545/
END:VEVENT
END:VCALENDAR