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Award Abstract #0636875

Initial Analysis of IceCube Data at UW-Madison

Division Of Polar Programs
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Initial Amendment Date: July 24, 2007
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Latest Amendment Date: June 30, 2009
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Award Number: 0636875
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Award Instrument: Continuing grant
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Program Manager: Vladimir O. Papitashvili
PLR Division Of Polar Programs
GEO Directorate For Geosciences
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Start Date: August 1, 2007
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End Date: July 31, 2010 (Estimated)
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Awarded Amount to Date: $3,647,645.00
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Investigator(s): Francis Halzen halzen@icecube.wisc.edu (Principal Investigator)
Albrecht Karle (Co-Principal Investigator)
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Sponsor: University of Wisconsin-Madison
21 North Park Street
MADISON, WI 53715-1218 (608)262-3822
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NSF Program(s): Particle Astrophysics/Cosmic P,
Antarctic Astrophys&Geosp Sci,
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Program Reference Code(s): 0000, 5937, 5979, 5980, OTHR, 7483
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Program Element Code(s): 1643, 5115, 7316


The IceCube project, a 1 cubic-km neutrino observatory being built at the South Pole, transforms a billion tons of natural ultra-transparent deep Antarctic ice into an astronomical telescope. The telescope will exploit a subatomic particle called the neutrino as a yet unexplored cosmic messenger. The ice traps neutrinos and pinpoints their origin in the Universe. Neutrinos will reveal the extreme Universe of neutron stars, black holes, quasars and gamma ray bursts. They may divulge the particle nature of dark matter. Scientifically, we are entering a critical phase of neutrino astronomy at the South Pole. Although neutrino telescopes are designed as discovery instruments, their performance is often measured by the capability to detect those neutrinos that accompany the highest-energy cosmic rays. The origin of extragalactic cosmic rays is as yet a total mystery; their accelerators are likely to be powered by exceptional gravitational forces in the vicinity of black holes.

This proposal requests support for University of Wisconsin physicists and astronomers to participate in the scientific analysis of the initial data from the IceCube Neutrino Observatory. In particular, this group plans for: Searches of point and diffuse fluxes of cosmic neutrinos;

Observation of neutrinos from gamma-ray bursts; Supernova detection; and Search for Dark Matter.

The observation of extra-terrestrial neutrinos would have broader significance, by finding the accelerators in the universe and thereby answering one of the 11 questions posed in the National Research Council study on the Physics of the Universe: "Where do ultra-high energy particles come from?" The IceCube E&O program at UW Madison has focused on three main areas:

. Providing quality K - 12 teacher professional development, and producing new inquiry-based learning materials that showcase ongoing research;

. Increasing the diversity of the science and technology workforce by partnering with minority institutions and programs that serve underrepresented groups; and

. Enhancing the general public's appreciation and understanding of science through informal learning opportunities, including broadcast media and museums


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IceCube Collaboration. "Search for ultra-high-energy neutrinos with AMANDA-II," The Astrophysical Journal, v.675, 2008, p. 1014. 

IceCube Collaboration (with InterPlanetary Network). "The search for muon neutrinos from Northern Hemisphere gamma-ray bursts with AMANDA," The Astrophysical Journal, v.674, 2008, p. 357. 

IceCube Collaboration. "Multiyear search for a diffuse flux of muon neutrinos with AMANDA-II," Physical Review D, v.76 / 77, 2008, p. 042008. 

IceCube Collaboration. "Detection of atmospheric muon neutrinos with the IceCube 9-string detector," Physical Review D, v.76, 2007, p. 027101. 

IceCube Collaboration. "Search for neutrino-induced cascades from gamma-ray bursts with AMANDA-II," The Astrophysical Journal, v.664, 2007, p. 397. 

J. Braun with J. Dumm et al.. "Methods for point-source analysis in high-energy neutrino telescopes," Astropartical Physics, v.29, 2008, p. 299. 

J.K. Becker. "High-energy neutrinos in the context of multimessenger astrophysics," Physics Reports, v.458, 2008, p. 173. 

F. Halzen with M.C. Gonzalez-Garcia, et al.. "Radiology of the Earth's core and mantle with atmospheric neutrinos," Physics Review Letters, v.100 6, 2008, p. 061802. 

N. van Eijndhoven. "On the observability of high-energy neutrinos from gamma-ray bursts," Astropartical Physics, v.28, 2008, p. 540. 

F. Halzen with A. O Murchadha. "Neutrinos from cosmic-ray accelerators in the Cygnus region of the galaxy," Physics Review D, v.76, 2007, p. 123003. 

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