Matches in SemOpenAlex for { <https://semopenalex.org/work/W3136359302> ?p ?o ?g. }
Showing items 1 to 57 of
57
with 100 items per page.
- W3136359302 abstract "Future galaxy surveys (whether space-based, like Euclid and the Roman Space Telescope, or ground-based like the Rubin Observatory’s LSST) will provide an unprecedented amount of data regarding the distribution of galaxies. This distribution encodes significant cosmological information, including neutrino mass and the nature of dark energy. However, the very power of these surveys can become problematic, in that they will probe scales ($la 10h^{-1}$Mpc) on which the standard analysis techniques (using the galaxy power spectrum) are blind to significant portions of the cosmological information inherent in the data. This work develops two categories of tools for decoding this hidden information.First, it applies the theory of sufficient statistics to galaxy surveys, providing prescriptions for these statistics, which one can then fit to observations. In particular, it provides, for any near-concordance cosmology, prescriptions for (a) the sufficient-statistics dark matter power spectrum $P_A(k)$, (b) the matter probability distribution function $mathcal{P}(delta)$, and (c) the sufficient statistics galaxy power spectrum $P_{A^*}(k)$.Second, it pioneers techniques for fitting cosmological models to counts-in-cells (CIC) galaxy probability distributions; in particular, it (a) proposes and validates a galaxy bias model applicable to scales as small as $2h^{-1}$Mpc, (b) determines values for otherwise-degenerate parameters ($sigma_8$ and galaxy bias $b$) by fitting to observed CIC in SDSS data, and (c) derives and verifies formulae for the CIC covariance matrix.Together, these tools allow maximally efficient extraction of cosmological information from the data returned by future galaxy surveys." @default.
- W3136359302 created "2021-03-29" @default.
- W3136359302 creator A5008777790 @default.
- W3136359302 date "2021-01-11" @default.
- W3136359302 modified "2023-09-28" @default.
- W3136359302 title "Decoding the Universe: Tools for Optimal Extraction of Information from Galaxy Surveys" @default.
- W3136359302 hasPublicationYear "2021" @default.
- W3136359302 type Work @default.
- W3136359302 sameAs 3136359302 @default.
- W3136359302 citedByCount "0" @default.
- W3136359302 crossrefType "journal-article" @default.
- W3136359302 hasAuthorship W3136359302A5008777790 @default.
- W3136359302 hasConcept C105795698 @default.
- W3136359302 hasConcept C121332964 @default.
- W3136359302 hasConcept C149441793 @default.
- W3136359302 hasConcept C172790937 @default.
- W3136359302 hasConcept C26405456 @default.
- W3136359302 hasConcept C33923547 @default.
- W3136359302 hasConcept C44870925 @default.
- W3136359302 hasConcept C98444146 @default.
- W3136359302 hasConceptScore W3136359302C105795698 @default.
- W3136359302 hasConceptScore W3136359302C121332964 @default.
- W3136359302 hasConceptScore W3136359302C149441793 @default.
- W3136359302 hasConceptScore W3136359302C172790937 @default.
- W3136359302 hasConceptScore W3136359302C26405456 @default.
- W3136359302 hasConceptScore W3136359302C33923547 @default.
- W3136359302 hasConceptScore W3136359302C44870925 @default.
- W3136359302 hasConceptScore W3136359302C98444146 @default.
- W3136359302 hasIssue "1" @default.
- W3136359302 hasLocation W31363593021 @default.
- W3136359302 hasOpenAccess W3136359302 @default.
- W3136359302 hasPrimaryLocation W31363593021 @default.
- W3136359302 hasRelatedWork W1632669932 @default.
- W3136359302 hasRelatedWork W1677226187 @default.
- W3136359302 hasRelatedWork W1852927196 @default.
- W3136359302 hasRelatedWork W2049116355 @default.
- W3136359302 hasRelatedWork W2073472140 @default.
- W3136359302 hasRelatedWork W2080276706 @default.
- W3136359302 hasRelatedWork W2096201966 @default.
- W3136359302 hasRelatedWork W2130203958 @default.
- W3136359302 hasRelatedWork W2141527259 @default.
- W3136359302 hasRelatedWork W2203397622 @default.
- W3136359302 hasRelatedWork W2234980644 @default.
- W3136359302 hasRelatedWork W2271802697 @default.
- W3136359302 hasRelatedWork W2543999807 @default.
- W3136359302 hasRelatedWork W2917051555 @default.
- W3136359302 hasRelatedWork W3089248638 @default.
- W3136359302 hasRelatedWork W3100545583 @default.
- W3136359302 hasRelatedWork W3101211203 @default.
- W3136359302 hasRelatedWork W3103262890 @default.
- W3136359302 hasRelatedWork W3105214921 @default.
- W3136359302 hasRelatedWork W1865632278 @default.
- W3136359302 hasVolume "53" @default.
- W3136359302 isParatext "false" @default.
- W3136359302 isRetracted "false" @default.
- W3136359302 magId "3136359302" @default.
- W3136359302 workType "article" @default.