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SUMMARY:Localising the H.E.S.S. Galactic Centre point source
DTSTART;VALUE=DATE-TIME:20070704T135400Z
DTEND;VALUE=DATE-TIME:20070704T140600Z
DTSTAMP;VALUE=DATE-TIME:20260719T034527Z
UID:indico-contribution-286@cern.ch
DESCRIPTION:Speakers: VAN ELDIK\, Christopher (MPI for Nuclear Physics)\nT
 he detection of TeV gamma-rays from the direction of the Galactic Centre i
 s one of\nthe most exciting discoveries in recent years. Observations by t
 he H.E.S.S. system of\nimaging atmospheric Cherenkov telescopes provide th
 e most precise available data on\nthis source in the energy range 150 GeV 
 - 30 TeV. The vicinity of the kinetic centre\nof our galaxy harbours numer
 ous objects which could potentially accelerate particles\nto very high ene
 rgies and thus produce the gamma-ray flux observed. The\ncentre-of-gravity
  of the point-like emission measured by H.E.S.S. is in good\nagreement wit
 h the position of the supermassive black hole Sgr A* and the recently\ndis
 covered PWN G359.95-0.04. Given a systematic pointing error of about 30''\
 , a\npossible association with the SNR Sgr A East could not be ruled out w
 ith data\navailable from 2004. In this contribution an update is given on 
 the position of the\nH.E.S.S. Galactic Centre source using 2005/2006 data.
  The systematic pointing error\nis significantly reduced using guiding tel
 escopes for pointing corrections\, making it\npossible to exclude with hig
 h significance Sgr A East as the source of the TeV\ngamma-rays.\n\nhttps:/
 /indico.nucleares.unam.mx/event/4/session/102/contribution/286
LOCATION:Merida\, Mexico Uxmal + Tulum (Holiday Inn)
URL:https://indico.nucleares.unam.mx/event/4/session/102/contribution/286
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