Table 2
Galaxy properties derived from the ALMA and HST–WFC3 H band (1.6 μm) data.
ID | z | FALMA | R1∕2maj | b∕a | R![]() |
![]() |
R![]() |
![]() |
![]() |
IR8 |
---|---|---|---|---|---|---|---|---|---|---|
(μJy) | (arcsec) | (kpc) | (kpc) | (×1011L⊙ kpc−2) | ||||||
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) |
GS1 | 2.191 | 1190 ± 120 | 0.145 ± 0.016 | 0.72 | 0.87 ± 0.09 | 0.63 ± 0.18 | 0.73 | 3.75 | 3.73 ± 1.00 | 9.3 ± 0.8 |
GS2 | 2.326 | 1100 ± 70 | 0.163 ± 0.031 | 0.87 | 1.16 ± 0.22 | 1.07 ± 0.99 | 1.90 | 0.72 | 2.63 ± 1.21 | 7.2 ± 0.9 |
GS3 | 2.241 | 1630 ± 70 | 0.150 ± 0.016 | 0.42 | 0.52 ± 0.05 | 4.69 ± 1.65 | 2.81 | 2.03 | 14.96 ± 3.90 | 8.1 ± 0.6 |
GS4 | 1.956sp | 2100 ± 70 | 0.140 ± 0.010 | 0.82 | 0.97 ± 0.07 | 1.88 ± 0.59 | 3.93 | 1.77 | 3.54 ± 0.81 | 13.4 ± 1.8 |
GS5 | 2.576sp | 4420 ± 70 | 0.139 ± 0.006 | 0.92 | 1.03 ± 0.04 | 1.27 ± 0.22 | 2.57 | 1.08 | 10.12 ± 1.38 | – |
GS6 | 2.309sp | 5210 ± 70 | 0.120 ± 0.004 | 1.00 | 0.98 ± 0.03 | 1.15 ± 0.21 | 2.10 | 0.25 | 10.86 ± 1.27 | 27.3 ± 2.4 |
GS7 | 1.619sp | 2320 ± 70 | 0.194 ± 0.012 | 0.84 | 1.38 ± 0.09 | 1.78 ± 0.38 | 3.66 | 1.04 | 2.33 ± 0.41 | 19.8 ± 1.7 |
GS8 | 3.240 | 6420 ± 140 | 0.142 ± 0.003 | 0.62 | 0.67 ± 0.02 | 0.67 ± 0.04 | 1.63 | 3.53 | 20.86 ± 2.25 | – |
UDF1 | 3.000 | 924 ± 76 | 0.195 ± 0.020 | 0.85 | 1.24 ± 0.18 | – | 0.54 | 7.16 | 5.95 ± 2.00 | – |
UDF2 | 2.794sp | 996 ± 87 | 0.265 ± 0.030 | 0.85 | 1.77 ± 0.18 | – | 3.24 | 0.86 | 1.32 ± 0.33 | – |
UDF3 | 2.543sp | 863 ± 84 | 0.375 ± 0.045 | 0.36 | 1.59 ± 0.27 | – | 1.55 | 0.81 | 3.35 ± 1.28 | 9.9 ± 0.9 |
UDF4 | 2.430 | 303 ± 46 | 0.270 ± 0.060 | 0.52 | 1.42 ± 0.35 | – | 2.79 | 0.20 | 0.84 ± 0.47 | 7.9 ± 1.3 |
UDF5 | 1.759sp | 311 ± 49 | 0.480 ± 0.125 | 0.20 | 1.59 ± 0.62 | – | 2.24 | 0.71 | 0.48 ± 0.40 | 7.2 ± 0.7 |
UDF6 | 1.411sp | 239 ± 49 | 0.530 ± 0.205 | 0.19 | 1.77 ± 1.06 | – | 3.71 | 0.48 | 0.46 ± 0.58 | – |
UDF7 | 2.590 | 231 ± 48 | 0.120 ± 0.060 | – | 2.65 ± 1.33 | – | 4.24 | 0.77 | 0.25 ± 0.27 | – |
UDF8 | 1.546sp | 208 ± 46 | 0.675 ± 0.225 | 0.53 | 3.81 ± 1.24 | – | 5.57 | 3.04 | 0.11 ± 0.08 | 4.7 ± 0.4 |
UDF11 | 1.998sp | 186 ± 46 | 0.715 ± 0.285 | 0.48 | 3.72 ± 1.50 | – | 4.40 | 1.41 | 0.26 ± 0.22 | 6.4 ± 0.5 |
UDF13 | 2.497sp | 174 ± 45 | 0.430 ± 0.170 | 0.55 | 2.30 ± 0.97 | – | 1.14 | 1.86 | 0.22 ± 0.20 | 6.9 ± 1.3 |
UDF16 | 1.319sp | 155 ± 44 | 0.115 ± 0.058 | – | 2.74 ± 1.37 | – | 3.15 | 2.16 | 0.07 ± 0.07 | – |
Notes: Column (1) simplified ID. Column (2) photometric redshift, except for the galaxies marked with (sp) for which a spectroscopic redshift is available. Column (3) FALMA is the continuum flux density at 870 μm for the GS1 to GS8 sources and at 1.3 mm for the UDF1 to UDF16 sources. Columns (4) and (5) semi-major axis, R1∕2maj in arcsec, and axis ratio, b∕a, of the ALMA sources measured from uvmodelfit in CASA for the GS sources and from Rujopakarn et al. (2016) for the UDF galaxies. The consistency of the GS and UDF was checked in the direct images using GALFIT. The sizes of UDF7 and UDF16 are measured at the 2σ level. Column (6) circularized effective ALMA radius, , in kpc, as defined in Eq. (1). Column (7) Sérsic index,
, derived from the Sérsic fit to the ALMA 870 μm image for the GS sources using GALFIT on the direct images. The S/N of the UDF sources is not high enough to allow the fit of a Sérsic index. Columns (8) and (9) are the circularized effective Sérsic radius,
in kpc, and index,
, derived from the Sérsic fit to WFC3 H band images by van der Wel et al. (2012). Column (10) IR surface density in L⊙ kpc−2, ΣIR = (LIR/2)/[π(R
)2], where LIR is given in Table 3 and
in Column (6). Column (11) IR8 = LIR/L8μm color index. The 8 μm rest-frame luminosities were derived from the observed Spitzer-MIPS 24 μm photometry as in Elbaz et al. (2011). L8μm, hence also IR8, can only be determined from the observed 24 μm luminosity for galaxies with 1.5 ≤ z ≤ 2.5.
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