Matches in SemOpenAlex for { <https://semopenalex.org/work/W3164845590> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W3164845590 abstract "Recently, a new cosmological framework, dubbed Ricci Cosmology, has been proposed. Such a framework has emerged from the study of relativistic dynamics of fluids out of equilibrium in a curved background and is characterised by the presence of deviations from the equilibrium pressure in the energy-momentum tensor which are due to linear terms in the Ricci scalar and the Ricci tensor. The coefficients in front of such terms are called the second order transport coefficients and they parametrise the fluid response to the pressure terms arising from the spacetime curvature. Under the preliminary assumption that the second order transport coefficients are constant, we find the simplest solution of Ricci cosmology in which the presence of pressure terms causes a departure from the perfect fluid redshift scaling for matter components filling the Universe. In order to test the viability of this solution, we make four different ansatze on the transport coefficients, giving rise to four different cases of our model. On the physical ground of the second law of thermodynamics for fluids with non-equilibrium pressure, we find some theoretical bounds (priors) on the parameters of the models. Our main concern is then the check of each of the case against the standard set of cosmological data in order to obtain the observational bounds on the second order transport coefficients. We find those bounds also realising that Ricci cosmology model is compatible with $Lambda$CDM cosmology for all the ansatze." @default.
- W3164845590 created "2021-06-07" @default.
- W3164845590 creator A5029382047 @default.
- W3164845590 creator A5044298086 @default.
- W3164845590 creator A5066612427 @default.
- W3164845590 date "2021-05-23" @default.
- W3164845590 modified "2023-10-18" @default.
- W3164845590 title "Ricci cosmology in light of astronomical data" @default.
- W3164845590 cites W2570613424 @default.
- W3164845590 cites W2943417539 @default.
- W3164845590 hasPublicationYear "2021" @default.
- W3164845590 type Work @default.
- W3164845590 sameAs 3164845590 @default.
- W3164845590 citedByCount "0" @default.
- W3164845590 crossrefType "posted-content" @default.
- W3164845590 hasAuthorship W3164845590A5029382047 @default.
- W3164845590 hasAuthorship W3164845590A5044298086 @default.
- W3164845590 hasAuthorship W3164845590A5066612427 @default.
- W3164845590 hasConcept C12089564 @default.
- W3164845590 hasConcept C121332964 @default.
- W3164845590 hasConcept C12520029 @default.
- W3164845590 hasConcept C130187892 @default.
- W3164845590 hasConcept C155281189 @default.
- W3164845590 hasConcept C172790937 @default.
- W3164845590 hasConcept C195065555 @default.
- W3164845590 hasConcept C207297109 @default.
- W3164845590 hasConcept C2524010 @default.
- W3164845590 hasConcept C26405456 @default.
- W3164845590 hasConcept C33024259 @default.
- W3164845590 hasConcept C33332235 @default.
- W3164845590 hasConcept C33923547 @default.
- W3164845590 hasConcept C37914503 @default.
- W3164845590 hasConcept C44870925 @default.
- W3164845590 hasConcept C52220454 @default.
- W3164845590 hasConcept C62520636 @default.
- W3164845590 hasConcept C84999194 @default.
- W3164845590 hasConcept C85725439 @default.
- W3164845590 hasConcept C95200732 @default.
- W3164845590 hasConcept C98444146 @default.
- W3164845590 hasConceptScore W3164845590C12089564 @default.
- W3164845590 hasConceptScore W3164845590C121332964 @default.
- W3164845590 hasConceptScore W3164845590C12520029 @default.
- W3164845590 hasConceptScore W3164845590C130187892 @default.
- W3164845590 hasConceptScore W3164845590C155281189 @default.
- W3164845590 hasConceptScore W3164845590C172790937 @default.
- W3164845590 hasConceptScore W3164845590C195065555 @default.
- W3164845590 hasConceptScore W3164845590C207297109 @default.
- W3164845590 hasConceptScore W3164845590C2524010 @default.
- W3164845590 hasConceptScore W3164845590C26405456 @default.
- W3164845590 hasConceptScore W3164845590C33024259 @default.
- W3164845590 hasConceptScore W3164845590C33332235 @default.
- W3164845590 hasConceptScore W3164845590C33923547 @default.
- W3164845590 hasConceptScore W3164845590C37914503 @default.
- W3164845590 hasConceptScore W3164845590C44870925 @default.
- W3164845590 hasConceptScore W3164845590C52220454 @default.
- W3164845590 hasConceptScore W3164845590C62520636 @default.
- W3164845590 hasConceptScore W3164845590C84999194 @default.
- W3164845590 hasConceptScore W3164845590C85725439 @default.
- W3164845590 hasConceptScore W3164845590C95200732 @default.
- W3164845590 hasConceptScore W3164845590C98444146 @default.
- W3164845590 hasLocation W31648455901 @default.
- W3164845590 hasOpenAccess W3164845590 @default.
- W3164845590 hasPrimaryLocation W31648455901 @default.
- W3164845590 hasRelatedWork W1969215230 @default.
- W3164845590 hasRelatedWork W1971603414 @default.
- W3164845590 hasRelatedWork W2016684027 @default.
- W3164845590 hasRelatedWork W2034292810 @default.
- W3164845590 hasRelatedWork W2074804620 @default.
- W3164845590 hasRelatedWork W2092870338 @default.
- W3164845590 hasRelatedWork W2142607228 @default.
- W3164845590 hasRelatedWork W2189574387 @default.
- W3164845590 hasRelatedWork W2274796607 @default.
- W3164845590 hasRelatedWork W2573508701 @default.
- W3164845590 hasRelatedWork W2608298203 @default.
- W3164845590 hasRelatedWork W2983654279 @default.
- W3164845590 hasRelatedWork W3083675782 @default.
- W3164845590 hasRelatedWork W3098120732 @default.
- W3164845590 hasRelatedWork W3100397710 @default.
- W3164845590 hasRelatedWork W3100754100 @default.
- W3164845590 hasRelatedWork W3104975827 @default.
- W3164845590 hasRelatedWork W3105416397 @default.
- W3164845590 hasRelatedWork W3168720356 @default.
- W3164845590 hasRelatedWork W3197268325 @default.
- W3164845590 isParatext "false" @default.
- W3164845590 isRetracted "false" @default.
- W3164845590 magId "3164845590" @default.
- W3164845590 workType "article" @default.