FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3025689141> ?p ?o ?g. }

• W3025689141 abstract "An accurate theoretical template of the redshift-space galaxy power spectrum, if applicable out to nonlinear scales, enables us to extract more stringent and robust constraints on cosmological parameters from the measured galaxy clustering. In this work, we develop a simulation-based template, so-called emulator, for the redshift-space power spectrum of dark matter halos. Using the redshift-space halo power spectra measured from the Dark Quest $N$-body simulation suite that covers 101 flat-geometry $w$CDM cosmologies around the Planck $Lambda$CDM model, we feed these data into a feed-forward neural network to build the fast and accurate emulation of the power spectrum from the linear to nonlinear scales up to $k simeq 0.6 ,h ,{rm Mpc}^{-1}$. Our emulator achieves about 1% and 5% fractional accuracies in predicting the monopole and quadrupole moments of the power spectrum, respectively, for halos of $sim 10^{13}h^{-1}M_odot$ that correspond to host halos of the SDSS LOWZ- and CMASS-like galaxies, where the achieved accuracies are sufficient compared to the statistical errors of SDSS volume. The validation and performance of the emulator are given by the comparison of the emulator predictions with the power spectra directly measured from the simulations for validation sets that are not used in the training. We demonstrate that the emulator outputs can be used to make model predictions for the redshift-space power spectrum of galaxies by employing user-fed models for the halo-galaxy connection, such as the halo occupation distribution. The emulator allows us to easily incorporate the Finger-of-God effect due to the virial motions of galaxies and the Alcock-Paczy'{n}ski distortions. Our code can compute the redshift-space galaxy power spectrum in a CPU subseconds and is ready to perform the emulator-based cosmological analysis for the exiting and upcoming galaxy redshift surveys." @default.
• W3025689141 created "2020-05-21" @default.
• W3025689141 creator A5027646412 @default.
• W3025689141 creator A5032286110 @default.
• W3025689141 creator A5070095293 @default.
• W3025689141 creator A5079350368 @default.
• W3025689141 creator A5088495709 @default.
• W3025689141 date "2020-09-03" @default.
• W3025689141 modified "2023-10-16" @default.
• W3025689141 title "Accurate emulator for the redshift-space power spectrum of dark matter halos and its application to galaxy power spectrum" @default.
• W3025689141 cites W1761221243 @default.
• W3025689141 cites W1857637982 @default.
• W3025689141 cites W1954069964 @default.
• W3025689141 cites W1967792765 @default.
• W3025689141 cites W1992401172 @default.
• W3025689141 cites W1994562905 @default.
• W3025689141 cites W1995679256 @default.
• W3025689141 cites W2000310419 @default.
• W3025689141 cites W2006659716 @default.
• W3025689141 cites W2014963742 @default.
• W3025689141 cites W2018719255 @default.
• W3025689141 cites W2028254653 @default.
• W3025689141 cites W2029234737 @default.
• W3025689141 cites W2030392256 @default.
• W3025689141 cites W2031497590 @default.
• W3025689141 cites W2031912655 @default.
• W3025689141 cites W2035000458 @default.
• W3025689141 cites W2060137493 @default.
• W3025689141 cites W2064377583 @default.
• W3025689141 cites W2075866042 @default.
• W3025689141 cites W2093520305 @default.
• W3025689141 cites W2095456828 @default.
• W3025689141 cites W2097967586 @default.
• W3025689141 cites W2100213110 @default.
• W3025689141 cites W2102336972 @default.
• W3025689141 cites W2103489754 @default.
• W3025689141 cites W2103496339 @default.
• W3025689141 cites W2107073439 @default.
• W3025689141 cites W2119048669 @default.
• W3025689141 cites W2128130302 @default.
• W3025689141 cites W2128759530 @default.
• W3025689141 cites W2143309868 @default.
• W3025689141 cites W2203021331 @default.
• W3025689141 cites W2211491388 @default.
• W3025689141 cites W2286443581 @default.
• W3025689141 cites W2461007441 @default.
• W3025689141 cites W2501864044 @default.
• W3025689141 cites W2557413462 @default.
• W3025689141 cites W2584003236 @default.
• W3025689141 cites W2797820416 @default.
• W3025689141 cites W2804391553 @default.
• W3025689141 cites W2890285556 @default.
• W3025689141 cites W2897897834 @default.
• W3025689141 cites W2901415485 @default.
• W3025689141 cites W2901812353 @default.
• W3025689141 cites W2963321271 @default.
• W3025689141 cites W2972735740 @default.
• W3025689141 cites W3098221464 @default.
• W3025689141 cites W3100138809 @default.
• W3025689141 cites W3100446834 @default.
• W3025689141 cites W3100574878 @default.
• W3025689141 cites W3101503581 @default.
• W3025689141 cites W3102074255 @default.
• W3025689141 cites W3102096945 @default.
• W3025689141 cites W3102885373 @default.
• W3025689141 cites W3102889897 @default.
• W3025689141 cites W3103075170 @default.
• W3025689141 cites W3103368970 @default.
• W3025689141 cites W3103711895 @default.
• W3025689141 cites W3103838041 @default.
• W3025689141 cites W3103877238 @default.
• W3025689141 cites W3104321121 @default.
• W3025689141 cites W3104350385 @default.
• W3025689141 cites W3104639138 @default.
• W3025689141 cites W3105042846 @default.
• W3025689141 cites W3105071510 @default.
• W3025689141 cites W3105424954 @default.
• W3025689141 cites W3105465984 @default.
• W3025689141 cites W3125978220 @default.
• W3025689141 cites W4292875581 @default.
• W3025689141 doi "https://doi.org/10.1103/physrevd.102.063504" @default.
• W3025689141 hasPublicationYear "2020" @default.
• W3025689141 type Work @default.
• W3025689141 sameAs 3025689141 @default.
• W3025689141 citedByCount "35" @default.
• W3025689141 countsByYear W30256891412020 @default.
• W3025689141 countsByYear W30256891412021 @default.
• W3025689141 countsByYear W30256891412022 @default.
• W3025689141 countsByYear W30256891412023 @default.
• W3025689141 crossrefType "journal-article" @default.
• W3025689141 hasAuthorship W3025689141A5027646412 @default.
• W3025689141 hasAuthorship W3025689141A5032286110 @default.
• W3025689141 hasAuthorship W3025689141A5070095293 @default.
• W3025689141 hasAuthorship W3025689141A5079350368 @default.
• W3025689141 hasAuthorship W3025689141A5088495709 @default.
• W3025689141 hasBestOaLocation W30256891412 @default.
• W3025689141 hasConcept C121332964 @default.
• W3025689141 hasConcept C159249277 @default.
• W3025689141 hasConcept C168110828 @default.
• W3025689141 hasConcept C184665706 @default.

• next