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	University of Adelaide \| High Energy Astrophysics \| Pierre Auger Project
		The Pierre Auger Project is an international collaboration of 250 astrophysicists and particle physicists from 19 countries.
		The Pierre Auger Project is the first collaboration with resources large enough to solve this problem, one of the great unanswered questions in modern astrophysics.
		The Pierre Auger Project is tackling the low rate problem with a huge collecting area, covering 3000 square kilometres on an elevated plain in western Argentina.
	www.physics.adelaide.edu.au /astrophysics/pierre/index.html (913 words)

	Pierre Auger Observatory - Wikipedia, the free encyclopedia
		Pierre Auger Observatory is an international cosmic ray observatory designed to detect ultra high energy cosmic rays -- Oh-My-God particles.
		The observatory project was proposed in 1992 by Jim Cronin and Alan Watson.
		The PAO is unique in that it is the first experiment that combines both ground and fluorescence detectors at the same site thus allowing cross-calibration and reduction of systematic effects that may be peculiar to each technique.
	en.wikipedia.org /wiki/Pierre_Auger_Observatory (477 words)

	Pierre Victor Auger - Wikipedia, the free encyclopedia
		Pierre Victor Auger (May 14, 1899 – December 25, 1993) was a French physicist, born in Paris.
		The Auger process where Auger electrons are emitted from atoms was named after him, despite the fact that Lise Meitner discovered the process a few years before in 1923.
		The world's largest cosmic ray detector, the Pierre Auger Observatory, is named after him.
	en.wikipedia.org /wiki/Pierre_Victor_Auger (194 words)

	Untitled Document
		The Auger Observatory is expected to provide significant contribution to the measurement of the primary energy spectrum, arrival direction and mass composition in the energy interval from a few 10E17 up to the maximum detectable energy.
		S.Argirò 'The Pierre Auger Observatory and its Fluorescence Detector',
		with the Fluorescence Detector of the Pierre Auger Observatory”,
	www.infn.it /esperimenti/esperimentien.php?gruppo=2&sigla_naz=AUGER (1012 words)

	Cosmic Rays Encyclopedia Article @ LaunchBase.org (Launch Base) (Site not responding. Last check: 2007-10-18)
		He concluded that extensive particle showers are generated by high-energy primary cosmic-ray particles that interact with air nuclei high in the atmosphere, initiating a cascade of secondary interactions that ultimately yield a shower of electrons, photons, and muons that reach ground level.
		Measurements of the energy and arrival directions of the ultra-high-energy primary cosmic rays by the techniques of "density sampling" and "fast timing" of extensive air showers were first carried out in 1954 by members of the Rossi Cosmic Ray Group at the Massachusetts Institute of Technology.
		Pierre Auger Observatory: the largest cosmic ray observatory in the world, in Argentina, with a twin coming in Colorado
	www.launchbase.org /encyclopedia/Cosmic_rays (1679 words)

	[No title]
		The Pierre Auger Observatory will be a huge array of particle detectors that is designed to detect showers of particles created by collisions of these very high energy cosmic rays with the atmosphere.
		There is a second component to the observatory, a fluorescence detector array, which will look for the glow in the sky created by the collision between high energy cosmic rays and air molecules.
		The Pierre Auger observatory was proposed as a response to some very unusual and so far unexplained ultra high energy cosmic rays.
	www.dushkin.com /text-data/weekly/cp01-28-02.mhtml (638 words)

	Scientific American: Article: Cosmic Rays at the Energy Frontier: January 1997
		Whipple Observatory for gamma rays of much higher energies from some of the same remnants have not seen signals at the levels that would be expected if the supernovae were accelerating particles to 10
		Astronomical Observatory of Rome and Eli Waxman of
		Auger Project, after Pierre Auger, the French scientist who first investigated the phenomenon of correlated showers of particles from cosmic rays.
	auger.cnrs.fr /presse/ScAm_jan97.html (3008 words)

	symmetry - February 2005 - Let It Rain
		The Southern Observatory, with its 24 fluorescence telescopes and 1600 detector stations covering an area of 1200 square miles — roughly three times the area of the city of Los Angeles — is now nearing completion in Argentina.
		Auger could reveal the sources for the first time, though it may not solve the question of how sources can produce ultra-high energies in the first place.
		Although it’s still incomplete, Auger is already the largest observatory in the world, and the first major cosmic ray experiment south of the equator.
	www.symmetrymag.org /cms/?pid=1000063 (2296 words)

	Peirre Auger Observatory in Southeastern Colorado (Site not responding. Last check: 2007-10-18)
		The Pierre Auger Observatory, an international collaboration of astrophysics researchers, has selected an area in southeastern Colorado as the site for their Northern Hemisphere observatory.
		The Pierre Auger Collaboration is a group of some 250 physicists from 50 institutions in 13 countries.
		Auger will record enough events, and with enough precision, to draw the first detailed map of the sources of these ultra-high-energy particles.
	www.santafetrailscenicandhistoricbyway.org /proberve.html (523 words)

	Argentinean hunt for cosmic rays brings local benefits - SciDev.Net (Site not responding. Last check: 2007-10-18)
		The Pierre Auger Observatory is the result of a 15-nation collaboration whose facilities are spread across a vast area of Argentina.
		The observatory's first scientific results, announced at its inauguration on 10-12 November are, says Cronin, "very modest", representing just three months of study.
		The Pierre Auger Observatory was named after a French physicist who lived from 1899 to 1993.
	www.scidev.net /news/index.cfm?fuseaction=printarticle&itemid=2490&language=1 (350 words)

	Pierre Auger
		The observatory consists of an array of 1,600 particle detectors spaced approximately one mile apart within an approximately 35 mile by 35 mile area.
		The observatory also includes a series of fluorescence telescopes housed in a series of four observatory buildings around the perimeter of the detector array.
		The Pierre Auger Project, an international collaboration involving about 300 physicists and engineers from about 19 countries in North and South America and Europe, is named after the physicist who, in the 1930s, discovered this type of particle.
	www.procolorado.org /html/pierre_auger.html (1797 words)

	CERN Courier - Pierre Auger Observatory in - IOP Publishing - article
		The beautiful, nearly noise-free images represented an important milestone for the Auger collaboration in its study of the mysteries of the highest-energy cosmic rays.
		In the next few years the Auger Observatory should be able to resolve these differences using the power of the hybrid detector system to collect a large number of events around the GZK cut-off.
		The central data acquisition system is on the Auger campus, located at the edge of the array in the town of Malargue.
	www.cerncourier.com /main/article/42/2/5 (1044 words)

	10 November 2005 - Pierre Auger Observatory: Pierre Auger Observatory Celebrates Progress on Detector Array and ...
		MALARGÜE, Argentina -- Scientists of the Pierre Auger Observatory, a project to discover the origins of rare and mysterious ultra-high energy cosmic rays, began a celebration today (10 November) in Malargüe, Argentina, to mark the progress on installation of the Observatory’s detectors on the Argentina Pampas, and the presentation of the first physics results.
		The Pierre Auger Observatory is trying to solve the mystery of the origins of extremely rare ultra-high-energy cosmic rays — charged particles showering the earth at energies above 1019 electron volts, about 10 million times higher than the the energy of the world's highest-energy particle accelerator, the Tevatron at Fermilab.
		Fermilab, which hosts the project management office for the Pierre Auger Observatory, is a U.S. Department of Energy Office of Science national laboratory, operated under contract by Universities Research Association, Inc. DOE and NSF have designated URA as the US representative on the project’s international oversight board, currently chaired by URA President Fred Bernthal.
	www.interactions.org /cms/?pid=1022455 (1525 words)

	Pierre Auger Observatory celebrates progress on detector array and presents first science results
		Auger also established a new model for international collaboration, with scientists from 16 countries brought together by a compelling problem to build a collaboration from the bottom up.
		The Pierre Auger Observatory is trying to solve the mystery of the origins of extremely rare high-energy cosmic rays -- charged particles showering the earth at energies above 1019 electron volts, about 10 million times higher than the energy of the world's highest-energy particle accelerator, the Tevatron at Fermilab.
		The first physics results from the Pierre Auger Observatory include a new cosmic ray spectrum at the highest energies, the results of anisotropy and point source searches, and new limits on the photon content of the primaries which could address several points within exotic theories of cosmic ray origin.
	www.eurekalert.org /pub_releases/2005-11/dnal-pao010906.php (1565 words)

	Luis Prado Jr - Page for the Pierre Auger Observatory
		Prado Jr et al (For the Auger Collaborartion), Simulation of the fluorescence detector of the Pierre Auger Observatory, Nucl.
		AUGER COLLABORATION: J. Abraham et al., Properties and Performance of the Prototype Instrument for the Pierre Auger Observatory, Nucl.
		The Offlline Framework of the Pierre Auger Observatory
	www.ifi.unicamp.br /~pradojr (322 words)

	Auger : homepage
		The aim of the Pierre Auger Observatory is the thorough investigation of the highest energy cosmic rays.
		The southern experiment of the Pierre Auger Observatory, presently under construction in Argentina, is the largest detector system for ultrahigh energy cosmic rays worldwide.
		Another Auger observatory on the northern hemisphere in Colorado, USA is being planned.
	www.auger.de /index.en.html (431 words)

	Lamar Daily News - Today's Headlines (Site not responding. Last check: 2007-10-18)
		In his opening remarks in Friday's meeting, project leader Hans Bleumer of Germany told the group that among the primary goals of the Pierre Auger Project is to develop full sky coverage.
		The ability of the Auger Project to expand the array was a factor in selecting Southeast Colorado.
		Both Anderson and Auger project officials noted that work remains to be done to recruit local landowners who are willing to allow scientists to place detector tanks on their land.
	www.lamardaily.com /Stories/0,1413,121~7979~2910330,00.html (817 words)

	CERN Courier - The future's bright for the - IOP Publishing - article
		The strategy behind the design of the Pierre Auger Observatory is to study showers through detecting not only the particles, with an array of 1600 water Cherenkov detectors, but also the fluorescence light, using four stations, each with six telescopes overlooking the particle detectors.
		Unlike previous observatories for ultra-high-energy cosmic rays, the Pierre Auger Observatory combines the potential of high statistics from the water tanks, which are on nearly all of the time, with the power of a calorimetric energy determination from the fluorescence devices; it has become known as a hybrid detector.
		Figure 2 shows the layout of the Pierre Auger Observatory on 31 March, by which time 1113 tanks had been deployed with all but five of them filled with 12 tonnes of pure water; 953 are fitted with electronics and are fully operational.
	cerncourier.com /main/article/46/6/16 (2267 words)

	Auger detectors will search for cosmic rays’ mysterious source
		Auger scientists seek to pierce the secrets of a phenomenon that has baffled scientists for nearly seven decades: what is the mysterious source from beyond the galaxy that periodically bombards Earth with these high-energy cosmic rays?
		When completed later this year, the observatory will consist of a grid of cosmic-ray detectors and associated electronic instruments that covers 1,200 square miles of the Pampa Amarilla, approximately 600 miles west of Buenos Aires.
		The Auger collaboration established the observatory in Argentina in part because earlier cosmic-ray experiments were set up in the Northern Hemisphere.
	chronicle.uchicago.edu /060202/auger.shtml (731 words)

	Auger Celebration (Site not responding. Last check: 2007-10-18)
		The Pierre Auger Observatory is designed to study the highest energy cosmic rays with unprecedented statistics and precision.
		The Observatory collaboration includes more than 370 scientists and engineers from 60 institutions in 16 countries, and the construction cost of approximately $50 million (US) has been shared by the participating countries.
		The Pierre Auger Cosmic Ray Observatory is named for French scientist Pierre Victor Auger (1899-1993), who in 1938 was the first to observe the extensive air showers generated by the interaction of very-high-energy cosmic rays with the earth’s atmosphere.
	www.interactions.org /auger (281 words)

	Universe Today - Cosmic Ray Detector Completed
		To identify the cosmic mechanisms that produce microscopic particles at macroscopic energy, the Pierre Auger collaboration is installing an array that will ultimately comprise 1,600 surface detectors in an area of the Argentine Pampa Amarilla the size of Rhode Island, near the town of Malarg?e, about 600 miles west of Buenos Aires.
		The Pierre Auger project, named after the pioneering French physicist who first observed extended air showers in 1938, combines the detection methods used in the Japanese and Utah experiments.
		The Pierre Auger collaboration is in the process of preparing a proposal for a second site of its observatory, to be located in the United States.
	www.universetoday.com /am/publish/cosmic_ray_detector_complete.html (946 words)

	Universities Research Association, Inc.
		For more accurate detection of cosmic ray events, the Observatory is the first to use a hybrid approach: a surface detector array to record the showers of particles produced when cosmic rays strike the earth's surface; and fluorescence detectors to record the atmospheric flares produced by particle showers, visible on dark clear nights.
		The Auger Project was initiated in 1995 by James W. Cronin, Professor of Physics and Nobel Laureate at the University of Chicago.
		Currently, the Pierre Auger collaboration is led by Alan A. Watson, Professor of Physics at the University of Leeds in the United Kingdom, and by Giorgio Matthiae, Professor of Physics at the University of Rome.
	www.ura-hq.org /reports/report_2005/p_auger.html (1066 words)

	University of Leeds \| For the media \| Press releases \| Tracking messengers from the extreme universe
		University of Leeds scientists will join celebrations in Argentina this week to mark the progress of the Pierre Auger Observatory, a project to study the highest-energy cosmic rays.
		The $50m Pierre Auger Observatory is exploring the mystery of high-energy cosmic rays of unknown origin – charged particles showering the earth at energies above 1019 electron volts, about 10 million times higher than the world's highest-energy particle accelerator.
		To witness these extremely rare events, the observatory is constructing an array of 1600 detectors spread over 3000 square kilometres – roughly the size of the area inside the M25 - in Argentina's Mendoza Province.
	reporter.leeds.ac.uk /press_releases/current/auger.htm (362 words)

	Cronin leads international project to track cosmic rays at Auger Observatory
		These giant detectors will be part of the new Pierre Auger Observatory, an international project led by Chicago Nobel laureate James Cronin and University of Leeds researcher Alan Watson.
		Cronin and Watson named the Auger Observatory for the scientist who discovered showers of cosmic ray particles in 1938.
		The Auger Observatory will seek cosmic rays that have more than 100 million times more energy than the particles produced in the world’s most powerful particle accelerator at Fermilab.
	chronicle.uchicago.edu /990401/cronin.shtml (678 words)

	Louisiana State University Physics and Astronomy (Site not responding. Last check: 2007-10-18)
		The goal of the Pierre Auger Project is to measure the energy direction, and composition of the highest energy (> 10
		Auger will achieve nearly uniform sky coverage with two separated observatories, one each in the northern and southern hemispheres.
		Construction of the Observatory began in Argentina in 1999.
	www.phys.lsu.edu /dept/direct/matthews.html (412 words)

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