JWST/MIRI Simulated Imaging: Insights into Obscured Star Formation and AGNs for Distant Galaxies in Deep Surveys - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue The Astrophysical Journal Année : 2021

JWST/MIRI Simulated Imaging: Insights into Obscured Star Formation and AGNs for Distant Galaxies in Deep Surveys

Guang Yang
  • Fonction : Auteur
Casey Papovich
  • Fonction : Auteur
Micaela B. Bagley
  • Fonction : Auteur
Veronique Buat
Denis Burgarella
Mark E. Dickinson
  • Fonction : Auteur
David Elbaz
  • Fonction : Auteur
Steven L. Finkelstein
  • Fonction : Auteur
Adriano Fontana
  • Fonction : Auteur
Norman A. Grogin
  • Fonction : Auteur
Intae Jung
  • Fonction : Auteur
Jeyhan S. Kartaltepe
  • Fonction : Auteur
Allison Kirkpatrick
  • Fonction : Auteur
Pablo G. Pérez-González
  • Fonction : Auteur
Norbert Pirzkal
  • Fonction : Auteur
L. Y. Aaron Yung
  • Fonction : Auteur
A. Koekemoer

Résumé

The JWST MIRI instrument will revolutionize extragalactic astronomy with unprecedented sensitivity and angular resolution in mid-IR. Here, we assess the potential of MIRI photometry to constrain galaxy properties in the Cosmic Evolution Early Release Science (CEERS) survey. We derive estimated MIRI fluxes from the spectral energy distributions (SEDs) of real sources that fall in a planned MIRI pointing. We also obtain MIRI fluxes for hypothetical AGN-galaxy mixed models varying the AGN fractional contribution to the total IR luminosity ($\rm frac_{AGN}$). Based on these model fluxes, we simulate CEERS imaging (3.6-hour exposure) in 6 bands from F770W to F2100W using MIRISIM, and reduce these data using JWST PIPELINE. We perform PSF-matched photometry with TPHOT, and fit the source SEDs with X-CIGALE, simultaneously modeling photometric redshift and other physical properties. Adding the MIRI data, the accuracy of both redshift and $\rm frac_{AGN}$ is generally improved by factors of $\gtrsim 2$ for all sources at $z\lesssim 3$. Notably, for pure-galaxy inputs ($\rm frac_{AGN}=0$), the accuracy of $\rm frac_{AGN}$ is improved by $\sim 100$ times thanks to MIRI. The simulated CEERS MIRI data are slightly more sensitive to AGN detections than the deepest X-ray survey, based on the empirical $L_{\rm X}$-$L_{\rm 6\mu m}$ relation. Like X-ray observations, MIRI can also be used to constrain the AGN accretion power (accuracy $\approx 0.3$ dex). Our work demonstrates that MIRI will be able to place strong constraints on the mid-IR luminosities from star formation and AGN, and thereby facilitate studies of the galaxy/AGN co-evolution.

Dates et versions

hal-03158279 , version 1 (03-03-2021)

Identifiants

Citer

Guang Yang, Casey Papovich, Micaela B. Bagley, Veronique Buat, Denis Burgarella, et al.. JWST/MIRI Simulated Imaging: Insights into Obscured Star Formation and AGNs for Distant Galaxies in Deep Surveys. The Astrophysical Journal, 2021, 908 (2), pp.144. ⟨10.3847/1538-4357/abd6c1⟩. ⟨hal-03158279⟩
19 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More