Interpreting the statistical properties of High- z extragalactic sources detected by the South Pole Telescope Survey

Abstract: The results of the recently published spectroscopically complete survey of dusty star-forming galaxies detected by the South Pole Telescope over 2500 deg2 proved to be challenging for galaxy formation models that generally underpredict the observed abundance of high-z galaxies. In this pap...

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Bibliographic Details
Published in:The Astrophysical Journal
Main Authors: Cai, Zhen-Yi, Negrello, Mattia, De Zotti, Gianfranco
Format: Article in Journal/Newspaper
Language:English
Published: American Astronomical Society 2022
Subjects:
Online Access:https://orca.cardiff.ac.uk/id/eprint/150382/
https://doi.org/10.3847/1538-4357/ac6c83
https://orca.cardiff.ac.uk/id/eprint/150382/1/pdf.pdf
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Summary:Abstract: The results of the recently published spectroscopically complete survey of dusty star-forming galaxies detected by the South Pole Telescope over 2500 deg2 proved to be challenging for galaxy formation models that generally underpredict the observed abundance of high-z galaxies. In this paper we interpret these results in the light of a physically grounded model for the evolution of spheroidal galaxies. The model accurately reproduces the measured redshift distribution of galaxies without any adjustment of the parameters. The data do not support the indications of an excess of z > 4 dusty galaxies reported by some analyses of Herschel surveys.