Word-of-the-day: yukimarimo. New for some, while others may already be familiar with this uncommon word, which refers to tiny, lightweight snowball-tumbleweeds of the Antarctic. […]
Week 26 at the Pole
Week 25 at the Pole
It was a green sky last week as the biggest aurora storm of the season swept over the South Pole. No long camera exposure needed for this fantastic aurora scene. […]
Sun’s shadow on IceCube shines light on solar magnetic field
The IceCube Collaboration recently performed an analysis to try to expand our understanding of the solar magnetic field by studying the time-dependent cosmic-ray Sun shadow. They also wanted to explore how the cosmic-ray Sun shadow changes at different energy regimes. The results, recently submitted to Physical Review D, show that more solar activity leads to a weaker Sun shadow. There were also indications that, in times of high solar activity, the shadow becomes stronger at higher energies—a hint at Sun-shadow energy dependence that will be explored more in future studies. […]
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. […]
Week 24 at the Pole
Everything that has a beginning and an end has a middle, too—and that goes for winter. Last week at the South Pole they celebrated midwinter, the marking of the winter solstice. […]
Still no sterile neutrinos, according to new IceCube analysis
In two new papers, the IceCube Collaboration updates their eV-scale sterile neutrino search using an eight-year dataset and improved event selection. The analysis found no evidence of sterile neutrinos at this energy scale and was consistent with the no-sterile-neutrino hypothesis. […]
Week 23 at the Pole
They got some great outdoor photos last week under bright moonlight—no headlamps needed to walk around outside. […]
Machine-learning method allows IceCube to study cosmic rays at new-low energies
IceCube has found a way to detect cosmic rays of lower energies previously unreachable by IceTop. In a paper submitted to Physical Review D, “Cosmic Ray Spectrum from 250 TeV to 10 PeV using IceTop,” the IceCube Collaboration explains how they implemented a new two-station trigger as well as the machine-learning method developed to analyze these events […]
Week 22 at the Pole
Submitted ideas for the next pole marker are on display. The winterovers will vote on their favorite design for the 2021 marker. […]
IceCube statement on recent global events
The leadership of the IceCube Neutrino Observatory stands in unity with the members of the global community striving to overcome hundreds of years of systemic racism. […]