Are extragalactic sources of ultra-high-energy cosmic rays efficient emitters of neutrinos?

The search for the sources of ultra-high-energy cosmic rays (UHECRs) is not a simple one. UHECRs, which are a mixture of protons and heavy nuclei, are the highest energy particles ever measured. They should produce “hotspots” of high-energy neutrinos if they interact with other particles near their point of origin. Six years ago, a first […]

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Confirmation of whether galactic X-ray binaries emit high-energy neutrinos awaits IceCube-Gen2

X-ray binaries (XRB) consist of a compact object, such as a neutron star or a black hole, and a noncompact, companion star. When they are close enough, material is pulled off the star and drawn onto the compact companion, releasing intense X-rays that make them some of the most luminous sources in the sky. Microquasars, […]

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IceCube at ICRC 2021

Last week marked the end of the 37th International Cosmic Ray Conference, the largest conference in the world for cosmic ray physics. This year, the entire conference was hosted virtually, which allowed more people from an expanded geographic range to attend; there were approximately 1,800 participants from 55 countries who contributed around 1,350 papers. It […]

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IceCube-Gen2 will open a new window on the universe

In a white paper recently submitted to the Journal of Physics G, the international IceCube-Gen2 Collaboration outlines the need for and design of a next-generation extension of IceCube. By adding new optical and radio instruments to the existing detector, IceCube-Gen2 will increase the annual rate of cosmic neutrino observations by an order of magnitude, and its sensitivity to point sources will increase to five times that of IceCube. […]

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IceCube at Neutrino 2020

The IceCube Collaboration has a robust cohort presenting at the 29th biennial Neutrino conference, the world’s biggest conference in neutrino physics. Three IceCube collaborators will give plenary talks, and there are 30 virtual posters by collaborators. […]

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IceCube at ICRC 2019

The 36th International Cosmic Ray Conference took place last week at the University of Wisconsin–Madison. There were 82 IceCube contributions at this year’s meeting: two highlight talks, 36 parallel talks, and 43 posters. […]

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IceCube 2014 in brief

Yet another year has come to an end for IceCube with plenty of new science results, an always growing international collaboration, and plans for an update to the IceCube Neutrino Observatory. In the meantime, the detector’s performance has broken still another record, and many outreach activities, including the recently launched IceCube Masterclass, accompanied this hectic scientific activity. […]

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