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Measuring Hubble's Constant to 1% with Pulsating Stars

Project description

Variable stars could provide a cosmic yardstick for the accelerating Universe

New evidence shows that the Universe is expanding faster than expected as scientists cannot yet explain the discrepancy between their models and new measurements. It remains unclear whether this 'crisis in cosmology' should call for new physics to settle the controversy over the Hubble's constant or whether this value is subject to underestimated systematic errors. Many tools including variable stars, such as Cepheids, are used to calculate the expansion rate over time. The EU-funded H1PStars project will conduct research to mitigate biases that could shift the centre value of reported Hubble's constant measurements and quantify relevant systematic uncertainties. Project results could reinforce understanding of how solid the cosmic distance ladder is.

Host institution

ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
Net EU contribution
€ 1 836 000,00
Address
Batiment Ce 3316 Station 1
1015 Lausanne
Switzerland

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Region
Schweiz/Suisse/Svizzera Région lémanique Vaud
Activity type
Higher or Secondary Education Establishments
Other funding
€ 0,00

Beneficiaries (1)

ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
Switzerland
Net EU contribution
€ 1 836 000,00
Address
Batiment Ce 3316 Station 1
1015 Lausanne

See on map

Region
Schweiz/Suisse/Svizzera Région lémanique Vaud
Activity type
Higher or Secondary Education Establishments
Other funding
€ 0,00