New constraints on cosmological parameters and neutrino properties using the expansion rate of the Universe to z~1.75
By Michele Moresco, L. Verde, L. Pozzetti, Raul Jimenez, A. Cimatti. 2012
281 citations recorded by the source corpus.
We have assembled a compilation of observational Hubble parameter measurements estimated with the differential evolution of cosmic chronometers, in the redshift range 0 4 at 95% CL (74% CL) using the same datasets combinations. We also put competitive limits on the sum of neutrino masses, \Sigma m_\nu<0.24 eV at 68% confidence level. These results have been proven to be extremely robust to many possible systematic effects, such as the initial choice of stellar population synthesis model adopted to estimate H(z) and the progenitor-bias.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/4468ff87ca99ffad4be6ff9c79f034879bf14e69
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Citations in the corpus
- Neutrino Mass from Cosmology (2012, unknown): “48 eV (95% CL) [65].”
- A 6% measurement of the Hubble parameter at z∼0.45: direct evidence of the epoch of cosmic re-acceleration (2016, methodology): “The potential of this new method in comparison with more standard probes has been studied by many authors [14, 15, 16, 17], which demonstrated how the cosmic chronometers method can be competitive for many aspects with Supernovae type Ia (SNe) and Baryon Acoustic Oscillation (BAO) in constraining co”
- CONSTRAINTS ON COSMOLOGY FROM THE COSMIC MICROWAVE BACKGROUND POWER SPECTRUM OF THE 2500 deg2 SPT-SZ SURVEY (2012, methodology): “The tightness of the constraints on Neff from this study are driven by the inclusion of the H(z) inference from measuring the age-redshift relation of passively evolving galaxies out to z ∼ 1.75 (Moresco et al. 2012), which depends heavily on modeling stellar evolution.”
- Raising the bar: new constraints on the Hubble parameter with cosmic chronometers at z ∼ 2 (2015, methodology): “Much more precise estimates will be available once different probes are combined, as shown e.g. in Moresco et al. (2012b).”
- Setting the Stage for Cosmic Chronometers. II. Impact of Stellar Population Synthesis Models Systematics and Full Covariance Matrix (2020, methodology): “…resulting slope, i.e., A(D4000n) at a fixed metallicity, with a fifth-order polynomial, A(D4000n) = 5∑ k=0 akD4000 k n (B5) limiting the analysis to the range D4000n > 1.5, as this range matches that spanned by current datasets for CCs (see Moresco et al. 2012b; Moresco 2015; Moresco et al. 2016b).”