Improvements in cosmological constraints from breaking growth degeneracy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00540714" target="_blank" >RIV/68378271:_____/20:00540714 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202038409" target="_blank" >https://doi.org/10.1051/0004-6361/202038409</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202038409" target="_blank" >10.1051/0004-6361/202038409</a>
Alternative languages
Result language
angličtina
Original language name
Improvements in cosmological constraints from breaking growth degeneracy
Original language description
Context. The key probes of the growth of a large-scale structure are its rate f and amplitude σ8. Redshift space distortions in the galaxy power spectrum allow us to measure only the combination fσ8, which can be used to constrain the standard cosmological model or alternatives. By using measurements of the galaxy-galaxy lensing cross-correlation spectrum or of the galaxy bispectrum, it is possible to break the fσ8 degeneracy and obtain separate estimates of f and σ8 from the same galaxy sample. Currently there are very few such separate measurements, but even this allows for improved constraints on cosmological models.Aims. We explore how having a larger and more precise sample of such measurements in the future could constrain further cosmological models.Methods.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/EF15_003%2F0000437" target="_blank" >EF15_003/0000437: Cosmology, Gravity and the Dark Sector of the Universe</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
—
Volume of the periodical
642
Issue of the periodical within the volume
Oct
Country of publishing house
FR - FRANCE
Number of pages
8
Pages from-to
1-8
UT code for WoS article
000581916000006
EID of the result in the Scopus database
2-s2.0-85093955980