English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We compare the structural properties and dark matter content of star-forminggalaxies taken from the CAMELS cosmological simulations to the observed trendsderived from the SPARC sample in the stellar mass range $[10^{9},10^{11}]\,\textrm{M}_{\odot}$, to provide constraints on the value ofcosmological and astrophysical (SN- and AGN-related) parameters. We considerthe size-, internal DM fraction-, internal DM mass- and total-stellar massrelations for all the 1065 simulations from the IllustrisTNG, SIMBA and ASTRIDsuites of CAMELS, and search for the parameters that minimize the $\chi^{2}$with respect to the observations. For the IllustrisTNG suite, we find thefollowing constraints for the cosmological parameters: $\Omega_{\textrm{m}} =0.27_{-0.05}^{+0.01}$, $\sigma_{8} = 0.83_{-0.11}^{+0.08}$ and $S_{8} =0.78_{-0.09}^{+0.03}$, which are consistent within $1\sigma$ with the resultsfrom the nine-year WMAP observations. SN feedback-related astrophysicalparameters, which describe the departure of outflow wind energy per unit starformation rate and wind velocity from the reference IllustrisTNG simulations,assume the following values: $A_{\textrm{SN1}} = 0.48_{-0.16}^{+0.25}$ and$A_{\textrm{SN2}} = 1.21_{-0.34}^{+0.03}$, respectively. Therefore, simulationswith a lower value of outflow wind energy per unit star formation rate withrespect to the reference illustrisTNG simulation better reproduce theobservations. Simulations based on SIMBA and ASTRID suites predict central darkmatter masses substantially larger than those observed in real galaxies, whichcan be reconciled with observations only by requiring values of$\Omega_{\textrm{m}}$ inconsistent with cosmological constraints for SIMBA, orsimulations characterized by unrealistic galaxy mass distributions for ASTRID.

monthly notices of the royal astronomical society

CASCO: Cosmological and AStrophysical parameters from Cosmological  simulations and Observations -- I. Constraining physical processes in local  star-forming galaxies