BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:VERITAS: Status and Latest Results DTSTART;VALUE=DATE-TIME:20070709T133000Z DTEND;VALUE=DATE-TIME:20070709T134200Z DTSTAMP;VALUE=DATE-TIME:20260718T150715Z UID:indico-contribution-107-0-810@cern.ch DESCRIPTION:Speakers: Dr. MAIER\, Gernot (Mc Gill University\, Canada)\nVE RITAS is an atmospheric Cherenkov telescope array designed\nto study astro physical sources of very high energy gamma radiation.\nLocated in southern Arizona\, USA\, the array consists of four \n12-m diameter imaging Cheren kov telescopes. All four telescopes\nhave been deployed at the basecamp o f the Whipple Observatory\nand they became fully operational in early 2007 . This paper \ndescribes the operational status of VERITAS\, outlines the initial \nperformance parameters of the instrument\, and presents the lat est \nresults that have been obtained.\n\nhttps://indico.nucleares.unam.mx /event/4/session/107/contribution/810 LOCATION:Merida\, Mexico Kabah (Holiday Inn) URL:https://indico.nucleares.unam.mx/event/4/session/107/contribution/810 END:VEVENT BEGIN:VEVENT SUMMARY:Status of the second phase of the MAGIC telescope DTSTART;VALUE=DATE-TIME:20070709T134200Z DTEND;VALUE=DATE-TIME:20070709T135400Z DTSTAMP;VALUE=DATE-TIME:20260718T150715Z UID:indico-contribution-107-0-922@cern.ch DESCRIPTION:Speakers: Dr. GOEBEL\, Florian (Max-Planck-Institut for Physic s)\nThe 17m diameter MAGIC telescope is currently the largest single dish\ nCherenkov telescope for gamma ray astronomy. Within the year 2007 it\nwil l be upgraded with a second telescope MAGIC-II.\nStereo observations will improve the sensitivity of the observatory by a\nfactor of 2 and help to l ower the energy threshold.\nThe design\, status and expected performance o f MAGIC-II will be presented.\n\nhttps://indico.nucleares.unam.mx/event/4/ session/107/contribution/922 LOCATION:Merida\, Mexico Kabah (Holiday Inn) URL:https://indico.nucleares.unam.mx/event/4/session/107/contribution/922 END:VEVENT BEGIN:VEVENT SUMMARY:Status of CANGAROO-III DTSTART;VALUE=DATE-TIME:20070709T135400Z DTEND;VALUE=DATE-TIME:20070709T140600Z DTSTAMP;VALUE=DATE-TIME:20260718T150715Z UID:indico-contribution-107-0-166@cern.ch DESCRIPTION:Speakers: Dr. MORI\, Masaki (Institute for Cosmic Ray Research \, Univerisity of Tokyo)\nThe CANGAROO-III telescope system for very-high- energy gamma-ray astrophysics\nconsists of four 10-m atmospheric Cherenkov telescopes located near Woomera\, South\nAustralia. \nWe have been observ ing southern-sky objects since March 2004. \nHere we report on the status of the system and some recent results from CANGAROO-III\nobservations.\n\n https://indico.nucleares.unam.mx/event/4/session/107/contribution/166 LOCATION:Merida\, Mexico Kabah (Holiday Inn) URL:https://indico.nucleares.unam.mx/event/4/session/107/contribution/166 END:VEVENT BEGIN:VEVENT SUMMARY:Imaging of 0.3-50 MeV Gamma-Rays with 3-DTI (Three-Dimensional Tra ck Imager). DTSTART;VALUE=DATE-TIME:20070709T140600Z DTEND;VALUE=DATE-TIME:20070709T141800Z DTSTAMP;VALUE=DATE-TIME:20260718T150715Z UID:indico-contribution-107-0-369@cern.ch DESCRIPTION:Speakers: Dr. LINK\, Jason (NASA Goddard Space Flight Center / CRESST (USRA))\nA instrument to image medium energy gamma-rays is being d esigned for the \nfuture NASA Advanced Compton Telescope (ACT) mission. T his instrument \nconsists of a gas microwell imaging detector with an acti ve detection volume of \napproximately 1.6 m x 1.6m x 0.5m which is surrou nded by a segmented \ncalorimeter. The use of the gas imager allows for t he detection and tracking of \nthe recoil electron from the Compton intera ction from an incident gamma-ray \nphoton as well as a measure of its ener gy from the amount of ionization in the \ngas volume. The segmented calor imeter provides a trajectory and energy \nmeasurement of the scattered gam ma. The goal is an instrument capable of \nproviding excellent position r esolution (4 degrees at 2 MeV) and good energy \nresolution (<20% at 6 keV ). We will discuss the design and performance of a \nsmall-scale prototyp e detector unit as well as future plans for testing and flight.\n\nhttps:/ /indico.nucleares.unam.mx/event/4/session/107/contribution/369 LOCATION:Merida\, Mexico Kabah (Holiday Inn) URL:https://indico.nucleares.unam.mx/event/4/session/107/contribution/369 END:VEVENT BEGIN:VEVENT SUMMARY:Prototype results of an instrument to measure GRB polarization. DTSTART;VALUE=DATE-TIME:20070709T141800Z DTEND;VALUE=DATE-TIME:20070709T143000Z DTSTAMP;VALUE=DATE-TIME:20260718T150715Z UID:indico-contribution-107-0-159@cern.ch DESCRIPTION:Speakers: Dr. LAMANNA\, Giovanni (LAPP)\nReliable polarization measurements of photons from Gamma Ray Bursts (GRB)\nwould make the under standing of the GRB phenomenon progress enormously.\nPOLAR is a concept fo r an instrument that would enable such a measurement.\nWe will report abou t the first results of the performance of a prototype\nof this instrument and compare it with Monte-Carlo prediction.\n\nhttps://indico.nucleares.un am.mx/event/4/session/107/contribution/159 LOCATION:Merida\, Mexico Kabah (Holiday Inn) URL:https://indico.nucleares.unam.mx/event/4/session/107/contribution/159 END:VEVENT BEGIN:VEVENT SUMMARY:Observing the universe at TeV energies with the HAWC observatory DTSTART;VALUE=DATE-TIME:20070709T143000Z DTEND;VALUE=DATE-TIME:20070709T144200Z DTSTAMP;VALUE=DATE-TIME:20260718T150715Z UID:indico-contribution-107-0-1238@cern.ch DESCRIPTION:Speakers: Dr. GONZALEZ SANCHEZ\, Maria Magdalena (Instituto de Astronomia\, Universidad Nacional Autonoma de Mexico)\nThe HAWC (High Alt itude Water Cherenkov) observatory is a proposed experiment that\ncombines a very high altitude site with the developed and proven Milagro water\nCh erenkov technology. HAWC is a 150m x 150m pond of water located above 4100 m over\nsee level with a large field of view and a duty cycle higher than 95%. It observes\nthe relativistic particles and secondary gamma rays in extensive air showers of\nprimary particles with energies above a few tens of GeVs up to hundreds of TeVs. HAWC\nwill survey 2 pi sr of the sky ever y day with a sensitivity of the Crab flux at a\nmedian energy of 1 TeV. Af ter one year of operation\, half of the sky will be surveyed\nto 50mCrab. This sensitivity will likely result in the discovery of new sources as\nwe ll as allow to follow up observations of detectors such as GLAST\, VERITAS /HESS and\nIceCube. In this work\, the observatory design\, performance\, capabilities and possible\nsites will be discussed.\n\nhttps://indico.nucl eares.unam.mx/event/4/session/107/contribution/1238 LOCATION:Merida\, Mexico Kabah (Holiday Inn) URL:https://indico.nucleares.unam.mx/event/4/session/107/contribution/1238 END:VEVENT BEGIN:VEVENT SUMMARY:First results from the ARGO-YBJ experiment DTSTART;VALUE=DATE-TIME:20070709T144200Z DTEND;VALUE=DATE-TIME:20070709T145400Z DTSTAMP;VALUE=DATE-TIME:20260718T150715Z UID:indico-contribution-107-0-1029@cern.ch DESCRIPTION:Speakers: Dr. MARTELLO\, Daniele (Dip. of Physics - Univ. of L ecce (Italy) & INFN Lecce)\nThe central array of the ARGO detector at the YangBaJing Cosmic Ray Laboratory\n(4300 m a.s.l.\, Tibet\, P.R. China) ha s been put into operation for physics runs.\nIt is made of 130 identical s ub-units of 12 RPCs each ('cluster') covering a\nsurface of about 5800 m** 2 with 92% active area. Signals are picked-up by external\nelectrodes of s mall size\, thus allowing the sampling of EAS with high space-time\ngranul arity. Shower events are detected at a trigger rate of about 4 kHz. Events \nwith a few particles detected by a single cluster are counted in scaler mode on\na time base of 500 milliseconds. Preliminary results from the ana lysis of events\ncollected in a few months of data taking are presented.\n \nhttps://indico.nucleares.unam.mx/event/4/session/107/contribution/1029 LOCATION:Merida\, Mexico Kabah (Holiday Inn) URL:https://indico.nucleares.unam.mx/event/4/session/107/contribution/1029 END:VEVENT END:VCALENDAR