The physical properties of star-forming galaxies with strong [oiii]lines at z=3.25
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Date
2022
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing
Abstract
We present an analysis of physical properties of 34 [O III] emission-line galaxies (ELGs) at z = 3.254 ± 0.029 in
the Extended Chandra Deep Field South (ECDFS). These ELGs are selected from deep narrow H2S(1) and broad
Ks imaging of 383 arcmin2 obtained with CFHT/WIRCam. We construct spectral energy distributions (SEDs)
from U to Ks to derive the physical properties of ELGs. These [O III] ELGs are identified as starburst galaxies with
strong [O III] lines of LOIII ∼ 1042.6–1044.2 erg s−1 and have stellar masses of M* ∼ 109.0–1010.6 Me and star
formation rates of ∼10–210 Me yr−1
. Our results show that 24% of our sample galaxies are dusty with AV > 1 mag
and EW([O III])rest ∼ 70–500 Å, which are often missed in optically selected [O III] ELG samples.
Description
Keywords
Galaxy evolution, High-redshift galaxies, Galaxy formation, Astrophysics
Citation
Wen, R. et al. (2022). The physical properties of star-forming galaxies with strong [oiii]lines at z=3.25. Astrophysical Journal, 933(1), 50. https://doi.org/10.3847/1538-4357/ac7392