AEGIS20: a radio survey of the Extended Groth Strip

Abstract

We describe AEGIS20 - a radio survey of the Extended Groth Strip (EGS) conducted with the Very Large Array (VLA) at 1.4GHz. The resulting catalog contains 1,123 emitters and is sensitive to ultraluminous starbursts to z<=1.3, well matched to the redshift range of the DEEP2 spectroscopic survey in this region. We use stacking techniques to explore the uJy-level emission from a variety of galaxy populations selected via conventional criteria - Lyman-break galaxies (LBGs), distant red galaxies (DRGs), UV-selected galaxies and extremely red objects (EROs) - determining their properties as a function of color, magnitude and redshift and their extinction-free contributions to the history of star formation. We confirm the familiar pattern that the star-formation-rate (SFR) density, SFRD, rises by at least ~5x from z=0-1, although we note highly discrepant UV- and radio-based SFR estimates. Our radio-based SFRs become more difficult to interpret at z>1 where correcting for contamination by radio-loud active galactic nuclei (AGN) comes at the price of rejecting luminous starbursts. Whilst stacking radio images is a useful technique, accurate radio-based SFRs for z>>1 galaxies require precise redshifts and extraordinarily high-fidelity radio data to identify and remove accretion-related emission.

In press at ApJ Letters in the AEGIS Special Issue. Error in L(1.4) fixed. Catalogue available at http://www.roe.ac.uk/~rji/aegis20

References in corpus (7)

• The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets
• The Cosmic Infrared Background Resolved by Spitzer. Contributions of Mid-Infrared Galaxies to the Far-Infrared Background
• SHARC-2 350 Micron Observations of Distant Submillimeter Selected Galaxies
• A catalogue of micro-Jy radio sources in northern legacy fields
• SPITZER Observations of z~3 Lyman Break Galaxies: stellar masses and mid-infrared properties
• AEGIS: The Diversity of Bright Near-IR Selected Distant Red Galaxies
• AEGIS: A Panchromatic Study of IRAC-selected Extremely Red Objects with Confirmed Spectroscopic Redshifts

Cited by in corpus (33)

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• The star-formation history of K-selected galaxies
• CEERS Key Paper V: A triality on the nature of HST-dark galaxies
• The VLA-COSMOS Survey: III. Further Catalog Analysis and the Radio Source Counts
• Exploring the infrared/radio correlation at high redshift
• Widespread and Hidden Active Galactic Nuclei in Star-Forming Galaxies at Redshift > 0.3
• The Herschel-ATLAS Data Release 1 Paper II: Multi-wavelength counterparts to submillimetre sources
• High-resolution VLA Imaging of SDSS Stripe 82 at 1.4 GHz
• The dust un-biased cosmic star formation history from the 20 cm VLA-COSMOS survey
• The DEEP2 Galaxy Redshift Survey: AEGIS Observations of a Dual AGN at z=0.7
• Star formation rates in Lyman break galaxies: radio stacking of LBGs in the COSMOS field and the sub-$\mu$Jy radio source population
• The SCUBA-2 Cosmology Legacy Survey: The EGS deep field I - Deep number counts and the redshift distribution of the recovered Cosmic Infrared Background at 450 and 850 um
• IRS Spectroscopy and Multi-wavelength Study of Luminous Star-forming Galaxies at z~1.9
• A Millimetre Survey of Starburst Dominated Ultraluminous Infrared Galaxies at z~2
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• AEGIS: Radio and Mid-Infrared Selection of Obscured AGN Candidates
• Far-infrared characterization of an ultra-luminous starburst associated with a massively-accreting black hole at z=1.15
• LOFAR low-band antenna observations of the 3C295 and Bootes fields: source counts and ultra-steep spectrum sources
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• Interferometric CO Observations of submillimeter-faint, radio-selected starburst galaxies at z~2
• AEGIS: Infrared Spectroscopy of An Infrared Luminous Lyman Break Galaxy at z=3.01
• Narrow line AGN selection in CEERS: spectroscopic selection, physical properties, X-ray and radio analysis
• Using VO tools to investigate distant radio starbursts hosting obscured AGN in the HDF(N) region
• The radio properties of the JWST-discovered AGN
• A deep 1.4 GHz survey of the J1030 equatorial field: a new window on radio source populations across cosmic time
• A Fully-Identified Sample of AEGIS20 Microjansky Radio Sources
• AEGIS: Infrared Spectral Energy Distributions of MIPS 70micron selected sources
• The VVDS-VLA Deep Field - IV: Radio-optical properties
• A Systematic Search for Reddest Far-infrared and Sub-millimeter Galaxies: revealing dust-embedded starbursts at high redshifts
• The miniJPAS Survey: Detection of double-core Lyα morphology of two high-redshift (z>3) QSOs
• Cosmic Stillness: High Quiescent Galaxy Fractions Across Upper Mass Scales in the Early Universe to z = 7 with JWST