SCUBA-2 850um survey of the JWST-TDF & 3GHz VLA obs.

DOI

The James Webb Space Telescope Time-Domain Field (JWST-TDF) is an ~14' diameter field near the North Ecliptic Pole that will be targeted by one of the JWST Guaranteed Time Observations programs. Here, we describe our James Clerk Maxwell Telescope SCUBA-2 850um imaging of the JWST-TDF and present the submillimeter source catalog and properties. We also present a catalog of radio sources from Karl J. Jansky Very Large Array 3GHz observations of the field. These observations were obtained to aid JWST's study of dust-obscured galaxies that contribute significantly to cosmic star formation at high redshifts. Our deep 850um map covers the JWST-TDF at a noise level of {sigma}850um=1.0mJy/beam, detecting 83/31 sources in the main/supplementary signal-to-noise ratio (S/N>4 / S/N=3.5-4) sample, respectively. The 3GHz observations cover a 24' diameter field with a 1{sigma} noise of 1uJy/beam at a 0.7" FWHM. We identified eighty-five 3GHz counterparts to sixty-six 850um sources and then matched these with multiwavelength data from the optical to the mid-infrared wave bands. We performed spectral energy distribution fitting for 61 submillimeter galaxies (SMGs) matched with optical/near-infrared data, and found that SMGs at S/N>4 have a median value of z_phot_=2.22+/-0.12, star formation rates of 300+/-40M_{sun}/yr (Chabrier initial mass function), and typical cold dust masses of 5.9+/-0.7x10^8^M{sun}_, in line with bright SMGs from other surveys. The large cold dust masses indicate correspondingly large cool gas masses, which we suggest are a key factor necessary to drive the high star formation rates seen in this population.

Cone search capability for table J/ApJS/264/19/table3 (*VLA 3GHz source catalog)

Cone search capability for table J/ApJS/264/19/table4 (*Full version of James Webb Space Telescope Time-Domain Field (JWST-TDF) SCUBA-2 850um source catalog)

Identifier
DOI http://doi.org/10.26093/cds/vizier.22640019
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/264/19
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/264/19
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/264/19
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/264/19
Provenance
Creator Hyun M.; Im M.; Smail I.R.; Cotton W.D.; Birkin J.E.; Kikuta S.; Shim H.,Willmer C.N.A.; Condon J.J.; Windhorst R.A.; Cohen S.H.; Jansen R.A.,Ly C.; Matsuda Y.; Fazio G.G.; Swinbank A.M.; Yan H.
Publisher CDS
Publication Year 2023
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics