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Table 7.

Mean physical properties of sub-samples of OFGs.

Parameter Unit OFGs that are LBGs OFGs that are not LBGs Massive OFGs that are not LBGs ALMA-detected OFGs
(5 Obj.) (22 Obj.) (16 Obj.) (11 Obj.)
Derived from SED fitting with mean stacked photometry
zphot 4.0 ± 0.3 4.3 ± 0.2 4.4 ± 0.2 4.2 ± 0.2
M⋆ M⊙ (4.9) × 109 (4.7 ± 0.3) × 1010 (6.6) × 1010 (5.9) × 1010
LIR L⊙ (2.9 ± 2.1) × 1011 () × 1012 (3.7 ± 0.6) × 1012 () × 1012
AV mag 0.7 1.4 1.2 1.7
Mdust M⊙ (0.3 ± 1.3) × 108 (2.9 ± 0.7) × 108 (2.8 ± 0.6) × 108 (5.3 ± 1.1) × 108
Tdust K (...) 42.3 45.5 41.5
Mean stacked photometry
H mag 26.95 ± 0.17 27.09 ± 0.08 26.99 ± 0.08 26.85 ± 0.10
[4.5] mag 24.74 ± 0.31 23.34 ± 0.03 23.33 ± 0.02 22.99 ± 0.03
S1.13 mm μJy 65 ± 56 650 ± 26 660 ± 30 1153 ± 40
S3 GHz μJy 2.7 ± 0.5 6.5 ± 0.5 6.9 ± 0.5 10.6 ± 0.8
Derived quantities
L1.4 GHz erg s−1 Hz−1 (4.81 ± 0.92) × 1030 (1.40 ± 0.11) × 1031 (1.54 ± 0.11) × 1031 (2.18 ± 0.17) × 1031
qTIR 1.80 2.28 ± 0.03 2.39 ± 0.02 2.30 ± 0.03
SFRrad, avg M⊙ yr−1 189.95 ± 58.40 392.17 ± 49.02 408.91 ± 49.54 590.15 ± 74.07
SFRIR, avg M⊙ yr−1 44.52 ± 33.08 387.93 556.32 635.15
SFRUV, avg M⊙ yr−1 0.63 ± 0.07 0.37 ± 0.03 0.45 ± 0.03 0.59 ± 0.04
ΔMS 1.81 ± 1.32 1.46 1.45 ± 0.22 1.96
Mgas M⊙ (1.3 ± 5.7) × 1010 (5.0 ± 1.2) × 1010 (4.4 ± 0.9) × 1010 (8.4 ± 1.8) × 1010
fgas 0.73 ± 0.87 0.52 ± 0.06 0.40 ± 0.06 0.59 ± 0.05
τdep Myr 291 ± 1277 130 79 ± 21 133
Re(1.13 mm) kpc (...) 1.09 ± 0.05 1.05 ± 0.06 0.80 ± 0.03
ΣSFR(a) M⊙ yr−1 kpc−2 (...) 52 ± 11 80 ± 15 158 ± 28
Cosmic SFRD( * )
V( * *) Mpc3 (...) 7.4 × 105 7.4 × 105 7.4 × 105
SFRD M⊙ yr−1Mpc−3 (...) (1.2 ± 0.2) × 10−2 (1.2 ± 0.2) × 10−2 (0.9 ± 0.2) × 10−2

Notes. Same as Table 6 but for the four sub-samples of OFGs.

(a)

SFR surface density: , where SFRtot = SFRIR,avg + SFRUV,avg.

( * )The SFRD is discussed with details in Sect. 6. ( * *)Survey volume, calculated using Eq. (16) with a broad redshift range of z = 3.2 − 7.0.

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