@article{449f39517131493e834607d26d5119e1,
title = "The LOFAR Two-metre Sky Survey: the radio view of the cosmic star formation history",
abstract = "We present a detailed study of the cosmic star formation history over 90 per cent of cosmic time (0 ≲ z ≲ 4), using deep, radio continuum observations that probe star formation activity independent of dust. The Low Frequency Array Two Metre Sky Survey has imaged three well-studied extragalactic fields, Elais-N1, Bo{\"o}tes, and the Lockman Hole, reaching rms sensitivity at. The availability of high-quality ancillary data from ultraviolet to far-infrared wavelengths has enabled accurate photometric redshifts and the robust separation of radio-bright AGN from their star-forming counterparts. We capitalize on this unique combination of deep, wide fields and robustly selected star-forming galaxies to construct radio luminosity functions and derive the cosmic star formation rate density. We carefully constrain and correct for scatter in the relation, which we find to be. Our derived star formation rate density lies between previous measurements at all redshifts studied. We derive higher star formation rate densities between z ∼0 and z ∼3 than are typically inferred from short wavelength emission; at earlier times, this discrepancy is reduced. Our measurements are generally in good agreement with far-infrared and radio-based studies, with small offsets resulting from differing star formation rate calibrations.",
keywords = "galaxies: evolution, galaxies: high redshift, galaxies: starburst, galaxies: star formation, radio continuum: galaxies",
author = "Cochrane, {R. K.} and R. Kondapally and Best, {P. N.} and J. Sabater and Duncan, {K. J.} and Smith, {D. J. B.} and Hardcastle, {M. J.} and R{\"o}ttgering, {H. J. A.} and I. Prandoni and P. Haskell and G. G{\"u}rkan and Miley, {G. K.}",
note = "22 pages, 14 figures; accepted for publication in MNRAS Funding Information: RKC is grateful for the support of a Flatiron Research Fellowship, John Harvard Distinguished Science Fellowship, and the Institute for Astronomy, University of Edinburgh. The Flatiron Institute is supported by the Simons Foundation. RK acknowledges support from the STFC through grant ST/V000594/1. PNB and JS are grateful for support from the UK STFC via grants ST/R000972/1 and ST/V000594/1. DJBS and MJH acknowledge support from the UK STFC via grant ST/V000624/1. IP acknowledges support from INAF under the SKA/CTA PRIN {\textquoteleft}FORECaST{\textquoteright} and PRIN MAIN STREAM {\textquoteleft}SAuROS{\textquoteright} projects and under the Large Grants 2022 programme. KJD acknowledges funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie grant agreement No. 892117 (HIZRAD). Funding Information: We thank the anonymous referee for very helpful comments. This paper is based (in part) on data obtained with the International LOFAR Telescope (ILT) under project codes LC0 015, LC2 024, LC2 038, LC3 008, LC4 008, LC4 034, and LT10 01. LOFAR (Van Haarlem ) is the Low Frequency Array designed and constructed by ASTRON. It has observing, data processing, and data storage facilities in several countries, which are owned by various parties (each with their own funding sources), and which are collectively operated by the ILT foundation under a joint scientific policy. The ILT resources have benefited from the following recent major funding sources: CNRS-INSU, Observatoire de Paris and Universit{\'e} d{\textquoteright}Orl{\'e}ans, France; BMBF, MIWF-NRW, MPG, Germany; Science Foundation Ireland (SFI), Department of Business, Enterprise and Innovation (DBEI), Ireland; NWO, the Netherlands; the Science and Technology Facilities Council, UK; Ministry of Science and Higher Education, Poland. Publisher Copyright: {\textcopyright} 2023 The Author(s).",
year = "2023",
month = aug,
day = "1",
doi = "10.1093/mnras/stad1602",
language = "English",
volume = "523",
pages = "6082--6102",
journal = "Monthly Notices of the Royal Astronomical Society ",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",
}