Matches in SemOpenAlex for { <https://semopenalex.org/work/W3122349102> ?p ?o ?g. }
Showing items 1 to 96 of
96
with 100 items per page.
- W3122349102 abstract "We present a Markov Chain Monte Carlo (MCMC)-based parameter estimation package, CosmoReionMC, to jointly constrain cosmological parameters of the $Lambda$CDM model and the astrophysical parameters related to hydrogen reionization. The package is based on a previously developed physically motivated semi-analytical model for reionization, a similar semi-analytical model for computing the global 21~cm signal during the cosmic dawn and using an appropriately modified version of the publicly available CAMB for computing the CMB anisotropies. These calculations are then coupled to an MCMC ensemble sampler texttt{emcee} to compute the posterior distributions of the model parameter. The model has twelve free parameters in total: five cosmological and seven related to the stellar populations. We constrain the parameters by matching the theoretical predictions with CMB data from Planck, observations related to the quasar absorption spectra and, for the first time, the global 21~cm signal from EDGES. We find that incorporating the quasar spectra data in the analysis tightens the bounds on the electron scattering optical depth $tau$ and consequently the normalization $A_s$ of the primordial matter power spectrum (or equivalently $sigma_8$). Furthermore, when we include the EDGES data in the analysis, we find that an early population of metal-free stars with efficient radio emission is necessary to match the absorption amplitude. The CosmoReionMC package should have interesting future applications, e.g., probing non-standard extensions to the $Lambda$CDM model." @default.
- W3122349102 created "2021-02-01" @default.
- W3122349102 creator A5013824901 @default.
- W3122349102 creator A5018129358 @default.
- W3122349102 creator A5025154308 @default.
- W3122349102 date "2021-01-26" @default.
- W3122349102 modified "2023-09-27" @default.
- W3122349102 title "CosmoReionMC: A package for estimating cosmological and astrophysical parameters using CMB, Lyman-{alpha} absorption and global 21 cm data" @default.
- W3122349102 cites W1672159941 @default.
- W3122349102 cites W1786098785 @default.
- W3122349102 cites W2964885396 @default.
- W3122349102 cites W3012760896 @default.
- W3122349102 cites W3016431075 @default.
- W3122349102 cites W3048621947 @default.
- W3122349102 hasPublicationYear "2021" @default.
- W3122349102 type Work @default.
- W3122349102 sameAs 3122349102 @default.
- W3122349102 citedByCount "1" @default.
- W3122349102 countsByYear W31223491022021 @default.
- W3122349102 crossrefType "posted-content" @default.
- W3122349102 hasAuthorship W3122349102A5013824901 @default.
- W3122349102 hasAuthorship W3122349102A5018129358 @default.
- W3122349102 hasAuthorship W3122349102A5025154308 @default.
- W3122349102 hasConcept C105795698 @default.
- W3122349102 hasConcept C111350023 @default.
- W3122349102 hasConcept C121332964 @default.
- W3122349102 hasConcept C1276947 @default.
- W3122349102 hasConcept C135041427 @default.
- W3122349102 hasConcept C144024400 @default.
- W3122349102 hasConcept C149923435 @default.
- W3122349102 hasConcept C150846664 @default.
- W3122349102 hasConcept C153294291 @default.
- W3122349102 hasConcept C166126730 @default.
- W3122349102 hasConcept C19499675 @default.
- W3122349102 hasConcept C207297109 @default.
- W3122349102 hasConcept C2779345167 @default.
- W3122349102 hasConcept C27896171 @default.
- W3122349102 hasConcept C2908647359 @default.
- W3122349102 hasConcept C33024259 @default.
- W3122349102 hasConcept C33923547 @default.
- W3122349102 hasConcept C44870925 @default.
- W3122349102 hasConcept C4839761 @default.
- W3122349102 hasConcept C59375849 @default.
- W3122349102 hasConcept C62520636 @default.
- W3122349102 hasConcept C69672822 @default.
- W3122349102 hasConcept C85725439 @default.
- W3122349102 hasConcept C98444146 @default.
- W3122349102 hasConceptScore W3122349102C105795698 @default.
- W3122349102 hasConceptScore W3122349102C111350023 @default.
- W3122349102 hasConceptScore W3122349102C121332964 @default.
- W3122349102 hasConceptScore W3122349102C1276947 @default.
- W3122349102 hasConceptScore W3122349102C135041427 @default.
- W3122349102 hasConceptScore W3122349102C144024400 @default.
- W3122349102 hasConceptScore W3122349102C149923435 @default.
- W3122349102 hasConceptScore W3122349102C150846664 @default.
- W3122349102 hasConceptScore W3122349102C153294291 @default.
- W3122349102 hasConceptScore W3122349102C166126730 @default.
- W3122349102 hasConceptScore W3122349102C19499675 @default.
- W3122349102 hasConceptScore W3122349102C207297109 @default.
- W3122349102 hasConceptScore W3122349102C2779345167 @default.
- W3122349102 hasConceptScore W3122349102C27896171 @default.
- W3122349102 hasConceptScore W3122349102C2908647359 @default.
- W3122349102 hasConceptScore W3122349102C33024259 @default.
- W3122349102 hasConceptScore W3122349102C33923547 @default.
- W3122349102 hasConceptScore W3122349102C44870925 @default.
- W3122349102 hasConceptScore W3122349102C4839761 @default.
- W3122349102 hasConceptScore W3122349102C59375849 @default.
- W3122349102 hasConceptScore W3122349102C62520636 @default.
- W3122349102 hasConceptScore W3122349102C69672822 @default.
- W3122349102 hasConceptScore W3122349102C85725439 @default.
- W3122349102 hasConceptScore W3122349102C98444146 @default.
- W3122349102 hasLocation W31223491021 @default.
- W3122349102 hasOpenAccess W3122349102 @default.
- W3122349102 hasPrimaryLocation W31223491021 @default.
- W3122349102 hasRelatedWork W1925327021 @default.
- W3122349102 hasRelatedWork W1976707616 @default.
- W3122349102 hasRelatedWork W1979126684 @default.
- W3122349102 hasRelatedWork W2029616627 @default.
- W3122349102 hasRelatedWork W2059699043 @default.
- W3122349102 hasRelatedWork W2093411617 @default.
- W3122349102 hasRelatedWork W2141052513 @default.
- W3122349102 hasRelatedWork W2485992335 @default.
- W3122349102 hasRelatedWork W2593774047 @default.
- W3122349102 hasRelatedWork W2625464257 @default.
- W3122349102 hasRelatedWork W2803200164 @default.
- W3122349102 hasRelatedWork W2887405388 @default.
- W3122349102 hasRelatedWork W2948020207 @default.
- W3122349102 hasRelatedWork W2969586253 @default.
- W3122349102 hasRelatedWork W3008432268 @default.
- W3122349102 hasRelatedWork W3100636306 @default.
- W3122349102 hasRelatedWork W3106094774 @default.
- W3122349102 hasRelatedWork W3198816450 @default.
- W3122349102 isParatext "false" @default.
- W3122349102 isRetracted "false" @default.
- W3122349102 magId "3122349102" @default.
- W3122349102 workType "article" @default.