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What exactly does $k\sigma$ mean in astrophysics and cosmology?

The value of $H_0$ as measured by the Planck Satellite is 67.8 km/s/Mpc (https://sci.esa.int/web/planck/-/60504-measurements-of-the-hubble-constant). The standard deviation of the joint analysis is $\...
Lenard Kasselmann's user avatar

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