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Remote seminar Cosmo…
Remote seminar CosmoStat
March 4, 2021 11:00 AM - 12:00 PM
Title: A new probe of dark energy
Speaker: Vasiliki Pavlidou, University of Crete and Institute of Astrophysics - FORTH
Abstract:
In the currently favored cosmological model, the energy density of the Universe is dominated by a field of unknown nature - dark energy - acting anti-gravitationally. All our current evidence for the existence of dark energy, whether in the form of a cosmological constant or an evolving field, is indirect and global (based on the effect of dark energy on the Universe as a whole). I will discuss a novel path towards probing dark energy, using galaxy clusters on their largest non-expanding scales. I will show how measurements of the mass enclosed by the boundary between galaxy clusters and the expanding Universe can directly and uniquely probe dark energy *locally*: on scales much smaller than the observable Universe, and at the present cosmic time.
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Weak-Lensing/ShapePi…
Weak-Lensing/ShapePipe meeting
March 4, 2021 14:00 PM - 15:00 PM
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UNIONS Meeting
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Remote group meeting
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UNIONS Meeting
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UNIONS Meeting
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Virtual CosmoStat co…
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UNIONS Meeting
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Remote JC
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Weak-Lensing/ShapePi…
Weak-Lensing/ShapePipe meeting
March 11, 2021 14:00 PM - 15:00 PM
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Remote JC
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Weak-Lensing/ShapePi…
Weak-Lensing/ShapePipe meeting
March 18, 2021 14:00 PM - 15:00 PM
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Remote JC
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Weak-Lensing/ShapePi…
Weak-Lensing/ShapePipe meeting
March 25, 2021 14:00 PM - 15:00 PM
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