science

Observations explore Centaurus A’s halo

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Archival optical image (at 468 nm wavelength) of NGC 5128 taken with the UK Schmidt telescope superimposed on the location of the two fields studied. The red cross indicates the center of NGC 5128. The red circles represent the locations of LPVs selected from the ISAAC Ks-band data. Credit: Aghdam et al., 2024. Using the … Read more

The new theory describes how waves carry information from the surroundings

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Teflon objects (orange cylinders) were placed in a waveguide with a rectangular cross section. Then, an electromagnetic signal (blue wavefront) was injected from the right to extract information about the metallic cuboid shown in gray. By measuring the wave field in the area shown in red, researchers can show how information is generated and transported … Read more