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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3665
DTSTART:20150312T193000Z
DTEND:20150312T203000Z
DTSTAMP:20260419T142319Z
LAST-MODIFIED:20150303T164912Z
LOCATION:5280 Chamberlin Hall
SUMMARY:The status of Himalayan Gamma Ray Observatory (HiGRO)\, NPAC (
 Nuclear/Particle/Astro/Cosmo) Forum\, Bannanje Sripathi Acharya\, Tata
  Institute
DESCRIPTION:Work on VHE gamma-ray astronomy using the Atmospheric Cher
 enkov Technique started in India way back in 1969\,soon after the disc
 overy of pulsars. Over the years\, steady improvements in telescope ha
 rdware have led to increase in the sensitivity and collection area as 
 well as reduction in the energy threshold of the experiments. The late
 st in this series of experiments is the HiGRO project located at very 
 high altitude (4.3km)\, at Hanle in the Ladakh region of Himalayas. In
  the first phase of this project 7 telescope array called HAGAR was in
 stalled the year 2008. It is an array of wavefront sampling non- imagi
 ng telescopes having a threshold energy of about 200 GeV for gamma-ray
 s. This is the first ACT array operating at very high altitudes. A 21-
 m imaging telescope (called MACE)\, built by BARC group\, will be comm
 issioned at the same site adjascent to HAGAR array in this year. With 
 MACE\, the threshold energy of gamma-rays is expec to be about a few t
 ens of GeV. Regular observations of galactic and extra galactic object
 s using HAGAR are going on since October 2008. I shall describe the st
 atus the HiGRO project at Hanle and the recent results obtained using 
 the HAGAR array.
URL:https://www.physics.wisc.edu/events/?id=3665
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