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The influence of wavelength, flux, and lensing selection effects on the redshift distribution of dusty, star-forming galaxies
journal contribution
posted on 2023-06-08, 21:08 authored by Matthieu Béthermin, Carlos De Breuck, Mark Sargent, Emanuele DaddiWe interpret the large variety of redshift distributions of galaxies found by far-infrared and (sub-)millimeter deep surveys depending on their depth and wavelength using the Bethermin et al. (2012) phenomenological model of galaxy evolution. This model reproduces without any new parameter tuning the observed redshift distributions from 100 µm to 1.4 mm, and especially the increase of the median redshift with survey wavelength. This median redshift varies also significantly with the depth of the surveys, and deeper surveys do necessarily not probe higher redshifts. Paradoxically, at fixed wavelength and flux limit, the lensed sources are not always at higher redshift. We found that the higher redshift of 1.4 mm-selected south pole telescope (SPT) sources compared to other SMG surveys is not only caused by the lensing selection, but also by the longer wavelength. This SPT sample is expected to be dominated by a population of lensed main-sequence galaxies and a minor contribution (~10%) of unlensed extreme starbursts.
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- Published
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- Published version
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Astronomy and AstrophysicsISSN
0004-6361Publisher
EDP SciencesExternal DOI
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576Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2015-06-16First Open Access (FOA) Date
2015-06-16First Compliant Deposit (FCD) Date
2015-06-16Usage metrics
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