Apprentice publishes
Apprentice Lucy Hogarth, has recently graduated with a First in her Masters in Physics from Durham University
Apprentice Lucy Hogarth, who has recently graduated with a First in her Masters in Physics from Durham University, has published a joint paper entitled: "GAIA Cepheid parallaxes and ‘Local Hole’ relieve H0 tension". You can read the paper here.
Here is a brief explanation and introduction to Lucy's paper:
"There is a constant known as the "Hubble Constant" that defines the rate of expansion of the universe. It is widely believed to be around 70 km/s and has been for some time. However, measuring this constant with different methods has produced different results (i.e. measuring directly puts it at around 75 km/s and using more accurate models puts it at around 68 km/s). This paper suggests the reason why those results would be different. We say that we live in an under dense part of the Universe and that because of that galaxies are moving away from us in this "local void" to reach a gravitational equilibrium with the surroundings. We suggest that this is the reason why the Hubble constant has been measured as being higher than our more advanced models predict; the expansion away from us is a mixture of Hubble expansion and void outflows."
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