Galaxies as Clocks and the Universal Expansion

Galaxies as Clocks and the Universal Expansion

The Hubble parameter H(z) is a measure of the expansion rate of the universe at redshift z. One method to determine it relies on inferring the slope of the redshift with respect to cosmic time, where galaxy ages can be used as a proxy for the latter. This method is used by Simon et al. in [1], where...

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Bibliographic Details
Main Author: Ahlström Kjerrgren, Anders
Format: Others
Language:English
Published: KTH, Fysik 2021
Subjects:
cosmology
cosmic chronometers
universal expansion
Hubble parameter
differential ages
galaxy age
relative age
cosmic time
chi-square minimization
monte carlo sampling
gaussian processes
kosmologi
kosmisk kronometer
universums expansion
Hubbleparametern
differentiell ålder
galaxålder
relativ ålder
kosmisk tid
chi-2-minimering
monte carlo-sampling
gaussiska processer
Physical Sciences
Fysik
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294426

Internet

http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294426

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