Oskar Klein Centre

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An image showing that molecules, hot hydrogen gas, and hot dust are not co-located near SN1987A.

Possible hint of a dust-enshrouded neutron star in SN 1987A

In February of 1987 a blue supergiant star in the Large Magellanic Cloud exploded. The Large Magellanic Cloud is a satellite dwarf galaxy of our own Milky Way and this event, called SN 1987A, continues to be the closest observed supernova in more than four centuries.

a cylindrical bundle of wires where the space between them can vary

New VR research environment grant will focus on axions

The Oskar Klein Centre and Stockholm University will become a hub for axion research beginning now in 2020 thanks to a new Research Environment grant from the Swedish Research Council. A theoretical particle so far, the axion was introduced to explain why the strong force works the same both backwards and forwards in time and is also considered a serious dark matter candidate. The discovery of a cosmic axion background, or the ability to rule it out, would be an important result for both Standard Model physics and dark matter searches.

Black hole with jet emerging and shocks in the jet producing gamma-rays

New observations shed light on most powerful explosions in the Universe

Gamma-ray bursts arise from the most powerful explosions in the known Universe, and are linked to the birth of a black hole. New observations reveal that they are even more powerful than expected, and emit radiation at higher energies than previously known. The detections, made by two different ground-based telescopes, provide new insights into the mechanisms driving gamma-ray bursts.

An image of Sheng Yang

THE BLOG

Interview with Sheng Yang

Sheng is a postdoc in the SU Astronomy Department who is hunting for electromagnetic counterparts to gravitational wave sources. He's ready to start learning to make Swedish food.