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J/MNRAS/405/2260    GOODS-S field AzTEC/ASTE Deep 1.1mm imaging   (Scott+, 2010)

Deep 1.1mm-wavelength imaging of the GOODS-S field by AzTEC/ASTE. I. Source catalogue and number counts. Scott K.S., Yun M.S., Wilson G.W., Austermann J.E., Aguilar E., Aretxaga I., Ezawa H., Ferrusca D., Hatsukade B., Hughes D.H., Iono D., Giavalisco M., Kawabe R., Kohno K., Mauskopf P.D., Oshima T., Perera T.A., Rand J., Tamura Y., Tosaki T., Velazquez M., Williams C.C., Zeballos M. <Mon. Not. R. Astron. Soc., 405, 2260-2278 (2010)> =2010MNRAS.405.2260S
ADC_Keywords: Surveys ; Galaxies, radio ; Millimetric/submm sources Keywords: methods: data analysis - surveys - galaxies: evolution - galaxies: high-redshift - galaxies: starburst - submillimetre: galaxies Abstract: We present the first results from a 1.1mm confusion-limited map of the Great Observatories Origins Deep Survey-South (GOODS-S) taken with the AzTEC camera on the Atacama Submillimeter Telescope Experiment. We imaged 270arcmin2 field to a 1σ depth of 0.48-0.73mJy/beam, making this one of the deepest blank-field surveys at mm-wavelengths ever achieved. Although by traditional standards our GOODS-S map is extremely confused due to a sea of faint underlying sources, we demonstrate through simulations that our source identification and number counts analyses are robust, and the techniques discussed in this paper are relevant for other deeply confused surveys. We find a total of 41 dusty starburst galaxies with signal-to-noise ratios S/N≥3.5 within this uniformly covered region, where only two are expected to be false detections, and an additional seven robust source candidates located in the noisier (1σ∼1mJy/beam) outer region of the map. Description: We imaged a 26x20arcmin2 field centred at 03:32:30-27:8:20 (J2000) at 1.1mm using AzTEC on the ASTE. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 63 49 AzTEC/GOODS-S source candidates
See also: J/A+A/434/53 : GOODS-South Field redshifts (Vanzella+, 2005) J/A+A/454/423 : GOODS-South Field VLT/FORS2 redshifts. II. (Vanzella+, 2006) J/AJ/131/1216 : Faint radio sources in the CDF-S ACS field (Afonso+, 2006) J/AJ/132/2014 : NUV sources in CDF-S GOODS fields (De Mello+, 2006) J/A+A/465/1099 : Redshift catalog of 691 objects in CDFS (Ravikumar+, 2007) J/A+A/478/83 : GOODS-South Field VLT/FORS2 redshifts. III. (Vanzella+, 2008) J/ApJ/682/985 : FIREWORKS photometry of GOODS CDF-S (Wuyts+, 2008) J/A+A/511/A50 : JHks of GOODS-South field (Retzlaff+, 2010) J/A+A/512/A12 : VLT/VIMOS spectroscopy in GOODS-South field (Balestra+, 2010) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 6 A6 --- --- [AzTEC/] 7- 11 A5 --- ID AzTEC source identification (1) 12 A1 --- n_ID [*] * for source candidates having probable 870um counterparts detected with S/N≥ 3.7 in the LABOCA map (from LABOCA camera) 14- 19 A6 --- --- [AzTEC_] 20- 38 A19 --- AzTEC AzTEC designation ( 40- 43 F4.1 --- S/N ? Signal-to-noise ratio of the detection in the AzTEC 45- 47 F3.1 mJy S1.1 Measured flux density at 1.1mm 49- 51 F3.1 mJy e_S1.1 rms uncertainty on S1.1 53- 55 F3.1 mJy S1.1d Deboosted flux density at 1.1mm 57- 59 F3.1 mJy E_S1.1d Error on S1.1d (upper limit, 68% confidence level) 61- 63 F3.1 mJy e_S1.1d Error on S1.1d (lower limit, 68% confidence level)
Note (1): The first 41 sources (AzTEC/GS1-AzTEC/GS40) are detected with S/N≥3.5 within the uniform coverage region of the AzTEC/GOODS-S map, where two are expected to be false positives. The seven additional S/N≥4.5 sources (AzTEC/GS41-AzTEC/GS47) are located outside the uniform coverage region.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 13-Aug-2011
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