BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:TeV Haloes
DTSTART:20260626T090000Z
DTEND:20260626T110000Z
DTSTAMP:20261013T221300Z
UID:indico-event-39533@indico.in2p3.fr
DESCRIPTION:Speakers: Lioni-Moana Bourguinat\n\nTeV haloes are extended so
 urces of very-high-energy gamma rays found around some middle-aged pulsars
 . The emission spanning several tens of parsecs suggests an efficient conf
 inement of the ultra-relativistic lepton pairs produced by pulsars in thei
 r vicinity. The physical mechanism responsible for this suppressed transpo
 rt has not yet been identified. In some scenarios\, pair confinement may b
 e linked to the medium the pulsars are located in (Bourguinat et al.\, 202
 6 A&A).I will use a chronological approach and set the context for the dis
 covery of TeV haloes by presenting the positron excess in cosmic rays\, gi
 ve an overview of what we know about them and the pulsars that are creatin
 g them.\nFinally\, I will propose to revise a fundamental hypothesis commo
 nly used when discussing TeV haloes: their surrounding environment.\n\nhtt
 ps://indico.in2p3.fr/event/39533/
URL:https://indico.in2p3.fr/event/39533/
END:VEVENT
END:VCALENDAR