Energy balance SED modelling can be effective at high redshifts regardless of UV-FIR offsets

P. Haskell; D. J. B. Smith; R. K. Cochrane; C. C. Hayward; D. Anglés-Alcázar

doi:10.1093/mnras/stad2315

Energy balance SED modelling can be effective at high redshifts regardless of UV-FIR offsets

P. Haskell, D. J. B. Smith, R. K. Cochrane, C. C. Hayward, D. Anglés-Alcázar

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Abstract

Recent works have suggested that energy balance spectral energy distribution (SED) fitting codes may be of limited use for studying high-redshift galaxies for which the observed ultraviolet and far-infrared emission are offset (spatially `decoupled'). It has been proposed that such offsets could lead energy balance codes to miscalculate the overall energetics, preventing them from recovering such galaxies' true properties. In this work, we test how well the SED fitting code Magphys can recover the stellar mass, star formation rate (SFR), specific SFR, dust mass and luminosity by fitting 6,706 synthetic SEDs generated from four zoom-in simulations of dusty, high-redshift galaxies from the FIRE project via dust continuum radiative transfer. Comparing our panchromatic results (using wavelengths 0.4-500$\mu$m, and spanning $1

Original language	English
Pages (from-to)	1535
Number of pages	18
Journal	Monthly Notices of the Royal Astronomical Society
Volume	525
Issue number	1
DOIs	https://doi.org/10.1093/mnras/stad2315
Publication status	Published - 14 Sept 2023

Keywords

astro-ph.GA

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10.1093/mnras/stad2315

2309.07960v1

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abstract = "Recent works have suggested that energy balance spectral energy distribution (SED) fitting codes may be of limited use for studying high-redshift galaxies for which the observed ultraviolet and far-infrared emission are offset (spatially `decoupled'). It has been proposed that such offsets could lead energy balance codes to miscalculate the overall energetics, preventing them from recovering such galaxies' true properties. In this work, we test how well the SED fitting code Magphys can recover the stellar mass, star formation rate (SFR), specific SFR, dust mass and luminosity by fitting 6,706 synthetic SEDs generated from four zoom-in simulations of dusty, high-redshift galaxies from the FIRE project via dust continuum radiative transfer. Comparing our panchromatic results (using wavelengths 0.4-500$\mu$m, and spanning $1",

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AU - Haskell, P.

AU - Smith, D. J. B.

AU - Cochrane, R. K.

AU - Hayward, C. C.

AU - Anglés-Alcázar, D.

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PY - 2023/9/14

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N2 - Recent works have suggested that energy balance spectral energy distribution (SED) fitting codes may be of limited use for studying high-redshift galaxies for which the observed ultraviolet and far-infrared emission are offset (spatially `decoupled'). It has been proposed that such offsets could lead energy balance codes to miscalculate the overall energetics, preventing them from recovering such galaxies' true properties. In this work, we test how well the SED fitting code Magphys can recover the stellar mass, star formation rate (SFR), specific SFR, dust mass and luminosity by fitting 6,706 synthetic SEDs generated from four zoom-in simulations of dusty, high-redshift galaxies from the FIRE project via dust continuum radiative transfer. Comparing our panchromatic results (using wavelengths 0.4-500$\mu$m, and spanning $1

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Energy balance SED modelling can be effective at high redshifts regardless of UV-FIR offsets

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