The Physical Properties and Morphologies of Faint Dusty Star-forming Galaxies Identified with JWST
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A90106%2F25%3A00646423" target="_blank" >RIV/67985815:90106/25:00646423 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3847/1538-4357/ade394" target="_blank" >https://doi.org/10.3847/1538-4357/ade394</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-4357/ade394" target="_blank" >10.3847/1538-4357/ade394</a>
Alternative languages
Result language
angličtina
Original language name
The Physical Properties and Morphologies of Faint Dusty Star-forming Galaxies Identified with JWST
Original language description
We identify a sample of 234 dusty star-forming galaxies (DSFGs) in the A2744 and GOODS-S fields using JWST/NIRCam-selected galaxies as priors for SCUBA-2 measurements. This method provides a large number of galaxies both above an 850 mu m flux of 2 mJy (47 bright DSFGs) and below (187 faint DSFGs), representing the largest sample of individually identified (i.e., not stacked) faint DSFGs to date. We observe that fF444W and fF150W are tightly correlated with redshift, with fainter sources lying at higher redshifts, suggesting that the observed near-IR flux may be an effective way of selecting high-redshift DSFGs. We study the physical properties and morphologies of the DSFGs through spectral energy distribution fitting and parametric surface brightness profile modeling. Other than the lower star formation rates (SFRs) and total infrared luminosities in the faint DSFGs (SFR =80-45+81 , LIR=11.82-0.36+0.30 ) compared to the bright DSFGs (SFR =254-131+135 , LIR=12.32-0.30+0.20 ), the populations have similar properties. The stellar masses do not appear to be strongly dependent on either the SFRs or the submillimeter flux. These results suggest that the faint DSFGs are drawn from the same population of galaxies as the bright DSFGs. Based on visual inspections, we find a lower merger fraction (similar to 21%) relative to previous Hubble Space Telescope-based studies, suggesting that dust attenuation may have impacted previous estimates of DSFG merger rates.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
—
Continuities
—
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal
ISSN
0004-637X
e-ISSN
1538-4357
Volume of the periodical
988
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
19
Pages from-to
135
UT code for WoS article
001563371600001
EID of the result in the Scopus database
2-s2.0-105011155162