Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/20.500.12666/597
Título : JWST/MIRI Simulated Imaging: Insights into Obscured Star Formation and AGNs for Distant Galaxies in Deep Surveys
Autor : Yang, C.
Papovich, C.
Bagley, M. B.
Buat, V.
Burgarella, D.
Dickinson, M.
Elbaz, D.
Finkelstein, S.
Fontana, A.
Grogin, N. A.
Jung, I.
Kartaltepe, J. S.
Kirkpatrick, A.
Koekemoer, A. M.
Pérez González, P. G.
Pirzkal, N.
Yung, L. Y. A.
Palabras clave : Infrared Astronomy;Active galactic nuclei;Poycyclic aromatic hydrocarbons;Infrared photometry;Infrared galaxies;Astronomical simulations;Spectral energy distribution;Supermassive Black Holes;Infrared telescopes
Fecha de publicación : 19-feb-2021
Editorial : IOP Science Publishing
DOI: 10.3847/1538-4357/abd6c1
Versión del Editor: https://iopscience.iop.org/article/10.3847/1538-4357/abd6c1
Citación : The Astrophysical Journal 908(2): 144(2021)
Resumen : The James Webb Space Telescope 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 active galactic nucleus (AGN)–galaxy mixed models varying the AGN fractional contribution to the total IR luminosity (fracAGN). Based on these model fluxes, we simulate CEERS imaging (3.6 hr exposure) in six bands from F770W to F2100W using mirisim and reduce these data using jwst pipeline. We perform point-spread-function-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 fracAGN is generally improved by factors of ≳2 for all sources at z ≲ 3. Notably, for pure-galaxy inputs (fracAGN = 0), the accuracy of fracAGN is improved by ∼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 LX–L6 μm relation. Like X-ray observations, MIRI can also be used to constrain the AGN accretion power (accuracy ≈0.3 dex). Our work demonstrates that MIRI will be able to place strong constraints on the mid-IR luminosities from star formation and AGNs and thereby facilitate studies of the galaxy/AGN coevolution.
URI : http://hdl.handle.net/20.500.12666/597
E-ISSN : 1538-4357
ISSN : 0004-637X
Aparece en las colecciones: (CAB) Artículos

Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Yang_2021_ApJ_908_144.pdf11,15 MBAdobe PDFVista previa
Visualizar/Abrir


Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons