SXDF-UDS-CANDELS-ALMA 1.5 arcmin^2 deep survey
SXDF-UDS-CANDELS-ALMA 1.5 arcmin^2 deep survey
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SXDF-UDS-CANDELS-ALMA 1.5 arcmin^2 深度测量
DOI：
10.1017/s1743921315010364
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
et al.
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文献类型：
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作者：
Kohno;K.;Yamaguchi;Y.;Tamura;Y.;Tadaki;K.;Hatsukade;B.;Ikarashi; S.;Caputi;K. I.;Rujopakarn;W.;Ivison;R. J.;Dunlop;J. S.;Motohara; K.;et al.
我们在sxdf - ads - candels上进行了连续105“× 50”或1.5 arcmin2窗口的1.1 mm ALMA观测。我们获得了0.28 mJy的5σ灵敏度，由于该波长的负k校正，我们得到了LIR ~6×1011L⊙（如果Tdust=40K）高达z ~ 10的尘埃恒星形成星系的平面感觉。我们检测到5个最亮的光源（S/N bbb6）和18个低显著的光源（5>S/N bbb4；尽管它们可能包含虚假的检测）。5个最亮的ALMA光源之一（S1.1mm = 0.84±0.09 mJy）在WFC3和VLT/HAWK-I图像中非常微弱，表明连续的ALMA成像调查发现了在深光学/近红外调查中不可见的微弱尘埃遮挡群。我们在z=5.955处发现了一个可能的[CII]线发射器，或者在场内发现了一个低z CO发射星系，使我们能够在整个宇宙历史中约束[CII]和/或CO的光度函数。
We have conducted 1.1 mm ALMA observations of a contiguous 105” × 50” or 1.5 arcmin2 window in the SXDF-UDS-CANDELS. We achieved a 5σ sensitivity of 0.28 mJy, giving a flat sensus of dusty star-forming galaxies with LIR ~6×1011L⊙ (if Tdust=40K) up to z ~ 10 thanks to the negative K-correction at this wavelength. We detected 5 brightest sources (S/N>6) and 18 low-significant sources (5>S/N>4; they may contain spurious detections, though). One of the 5 brightest ALMA sources (S1.1mm = 0.84 ± 0.09 mJy) is extremely faint in the WFC3 and VLT/HAWK-I images, demonstrating that a contiguous ALMA imaging survey uncovers a faint dust-obscured population invisible in the deep optical/near-infrared surveys. We find a possible [CII]-line emitter at z=5.955 or a low-z CO emitting galaxy within the field, allowing us to constrain the [CII] and/or CO luminosity functions across the history of the universe.