Have we mentioned all the cables? Well, there are a lot of cables in the IceCube Lab, and sometimes they’re a bit in the way, as they appear to be in this image of winterover Martin trying to get at something in the computer rack that needs attention. […]
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Week 46 at the Pole
Ok, they’re gone, but you can see them one last time in this photo taken mere moments before they left. Who? IceCube’s outgoing winterovers, whose departures from the Pole had suffered some delays. The group photo includes IceCuber Ralf Auer, just arrived on the plane that was soon to take Christian and Mack away, along with current winterovers James and Martin. […]
Exploring blazars as astrophysical neutrino sources
A new study from the IceCube Collaboration searched in three years of IceCube data for directional clustering of neutrinos around gamma-ray sources associated with blazars from the second Fermi-LAT AGN catalog. Although some enhancements in the observed neutrino rate from these blazars were found in the 3–30 TeV region, all of them are compatible with fluctuations of the atmospheric neutrino background. These results, recently submitted to The Astrophysical Journal, open several new analyses exploring blazars as very high energy neutrino sources. […]
Week 45 at the Pole
Last week at the Pole was a week of no airplanes. Not only did that postpone the departure of current IceCube winterovers Mack and Christian (who was captured in this image expressing his feelings about the delay), but it prevented US Secretary of State John Kerry from making a scheduled visit to the South Pole. […]
Week 44 at the Pole
Last week brought two new IceCube winterovers (James Casey and Martin Wolf) to the South Pole, fresh and ready for action. Outgoing winterovers (Christian Krueger and Mack van Rossem) were still at the Pole, available to provide some welcome training before they leave the ice (which can feel as though it may never happen, with only 3 of 12 planned flights making it last week due to one issue or another—such is life at the South Pole). […]
Week 43 at the Pole
Come summer, station personnel eagerly await the first provisions of “freshies,” as they’re called at the Pole. Despite continuing delays last week, a couple more planes have come and gone, leaving a few new faces along with the fresh fruit and bringing the station population to over 50. […]
Week 42 at the Pole
This nice sun halo (properly called a 22º halo) that appeared directly above the IceCube Lab meant that there were ice crystals in the atmosphere, one of the reasons that the skiway wasn’t seeing enough action last week. Some folks were all packed up and ready to leave, but no plane was there to take them away as the flight schedule kept being pushed back due to weather. Such is life at the South Pole. […]
Week 41 at the Pole
Last week at the Pole, the first two planes of the season arrived (and then departed again—both had short stays). They were small planes, but still, any plane landing at the Pole these days is an exciting event after the long, dark, quiet winter. […]
Week 40 at the Pole
Although the South Pole is essentially a desert, a hefty accumulation of snow occurs on and around the buildings there each winter. How is that? Well, it’s the wind. Antarctica is a windy place—even with so little precipitation, it features some extraordinary blizzards thanks to strong winds. […]
Neutrinos and gamma rays, a partnership to explore the extreme universe
IceCube’s collaborative efforts with gamma-ray, X-ray, and optical telescopes started long ago. Now, the IceCube, MAGIC and VERITAS collaborations present updates to their follow-up programs that will allow the gamma-ray community to collect data from specific sources during periods when IceCube detects a higher number of neutrinos. Details of the very high energy gamma-ray follow-up program have been submitted to the Journal of Instrumentation. […]