The Circumgalactic Medium from the CAMELS Simulations: Forecasting Constraints on Feedback Processes from Future Sunyaev-Zeldovich Observations - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles The Astrophysical Journal Year : 2022

The Circumgalactic Medium from the CAMELS Simulations: Forecasting Constraints on Feedback Processes from Future Sunyaev-Zeldovich Observations

Emily Moser
  • Function : Author
Nicholas Battaglia
  • Function : Author
Daisuke Nagai
  • Function : Author
Erwin Lau
  • Function : Author
Francisco Villaescusa-Navarro
  • Function : Author
Daniel Anglés-Alcázar
  • Function : Author
Greg L. Bryan
  • Function : Author
Romeel Dave
  • Function : Author
Lars Hernquist
  • Function : Author
Mark Vogelsberger
  • Function : Author

Abstract

It is important to understand the cycle of baryons through the circumgalactic medium (CGM) in the context of galaxy formation and evolution. In this study, we forecast constraints on the feedback processes heating the CGM with current and future Sunyaev-Zeldovich (SZ) observations. To constrain these processes, we use a suite of cosmological simulations, the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS). CAMELS varies four different feedback parameters of two previously existing hydrodynamical simulations, IllustrisTNG and SIMBA. We capture the dependences of SZ radial profiles on these feedback parameters with an emulator, calculate their derivatives, and forecast future constraints on these feedback parameters from upcoming experiments. We find that for a galaxy sample similar to what would be obtained with the Dark Energy Spectroscopic Instrument at the Simons Observatory, all four feedback parameters can be constrained (some within the 10% level), indicating that future observations will be able to further restrict the parameter space for these subgrid models. Given the modeled galaxy sample and forecasted errors in this work, we find that the inner SZ profiles contribute more to the constraining power than the outer profiles. Finally, we find that, despite the wide range of parameter variation in active galactic feedback in the CAMELS simulation suite, we cannot reproduce the thermal SZ signal of galaxies selected by the Baryon Oscillation Spectroscopic Survey as measured by the Atacama Cosmology Telescope.
Fichier principal
Vignette du fichier
Moser_2022_ApJ_933_133.pdf (1.71 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

insu-03764662 , version 1 (01-09-2022)

Licence

Attribution

Identifiers

Cite

Emily Moser, Nicholas Battaglia, Daisuke Nagai, Erwin Lau, Luis Fernando Machado Poletti Valle, et al.. The Circumgalactic Medium from the CAMELS Simulations: Forecasting Constraints on Feedback Processes from Future Sunyaev-Zeldovich Observations. The Astrophysical Journal, 2022, 933, ⟨10.3847/1538-4357/ac70c6⟩. ⟨insu-03764662⟩
41 View
35 Download

Altmetric

Share

Gmail Facebook X LinkedIn More