J/ApJ/707/1201 LABOCA ECDFS Submillimeter Survey (LESS) (Weiss+, 2009)
The Large Apex BOlometer Camera survey of the Extended Chandra Deep Field South.
Weiss A., Kovacs A., Coppin K., Greve T.R., Walter F., Smail I.,
Dunlop J.S., Knudsen K.K., Alexander D.M., Bertoldi F., Brandt W.N.,
Chapman S.C., Cox P., Dannerbauer H., De Breuck C., Gawiser E.,
Ivison R.J., Lutz D., Menten K.M., Koekemoer A.M., Kreysa E.,
Kurczynski P., Rix H.-W., Schinnerer E., van der Werf P.P.
<Astrophys. J., 707, 1201-1216 (2009)>
=2009ApJ...707.1201W 2009ApJ...707.1201W
ADC_Keywords: Galaxies, photometry ; Millimetric/submm sources ; Surveys
Keywords: cosmology: observations - galaxies: evolution -
galaxies: high-redshift - galaxies: starburst - submillimeter; surveys
Abstract:
We present a sensitive 870um survey of the Extended Chandra Deep Field
South (ECDFS) combining 310hr of observing time with the Large Apex
BOlometer Camera (LABOCA) on the APEX telescope. The LABOCA ECDFS
Submillimetre Survey (LESS) covers the full 30'x30' field size of the
ECDFS and has a uniform noise level of σ870um∼1.2mJy/beam.
LESS is thus the largest contiguous deep submillimeter survey
undertaken to date. The noise properties of our map show clear
evidence that we are beginning to be affected by confusion noise. We
present a catalog of 126 submillimeter galaxies (SMGs) detected with a
significance level above 3.7σ, at which level we expect five
false detections given our map area of 1260arcmin2.
Description:
Observations were carried out using the LABOCA on the APEX telescope
at Llano de Chajnantor in Chile. The center wavelength of LABOCA is
870um (345GHz). The measured angular resolution of each beam is 19.2"
FWHM. The observations were carried out between 2007 May and 2008
November. The mapping pattern was chosen to give a uniform coverage
across a 30'x30' area centered at J033229.0-274847.0.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 75 126 870 micron LABOCA source catalog of the ECDFS
--------------------------------------------------------------------------------
See also:
J/MNRAS/411/505 : Sub-mm observations in Extended Chandra DFS (Chapin+, 2011)
J/MNRAS/413/2314 : Radio and mid-IR counterpart of submm galaxies (Biggs+,
2011)
J/ApJ/699/1610 : Spitzer survey of submillimeter galaxies (Hainline+, 2009)
J/ApJS/179/95 : VLA survey of CDF-S. II. (Mainieri+, 2008)
J/MNRAS/380/199 : SCUBA Half-Degree Extragalactic Survey. III (Ivison+, 2007)
J/MNRAS/370/1057 : Blank-field SCUBA surveys (Scott+ 2006)
J/ApJ/622/772 : Redshift survey of submillimeter galaxies (Chapman+, 2005)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [LESS]
5- 20 A16 --- LESS Source name (JHHMMSS.s+DDMMSS)
22- 23 I2 h RAh Hour of Right Ascension (J2000)
25- 26 I2 min RAm Minute of Right Ascension (J2000)
28- 32 F5.2 s RAs Second of Right Ascension (J2000)
34 A1 --- DE- Sign of the Declination (J2000)
35- 36 I2 deg DEd Degree of Declination (J2000)
38- 39 I2 arcmin DEm Arcminute of Declination (J2000)
41- 44 F4.1 arcsec DEs Arcsecond of Declination (J2000)
46- 49 F4.1 mJy Sobs Observed 870um flux density
51- 53 F3.1 mJy e_Sobs Uncertainty in Sobs
55- 58 F4.1 mJy Sdeb Deboosted 870um flux density (1)
60- 62 F3.1 mJy e_Sdeb Uncertainty in Sdeb
64- 67 F4.1 --- S/N Signal-to-Noise
69- 71 F3.1 --- FDR Expected number of false detections (2)
73- 75 A3 --- Remark Remark code (3)
--------------------------------------------------------------------------------
Note (1): Deboosted fluxes depend on the source count model (see Section 3.2.3)
and are only correct in a statistical sense.
Note (2): For all sources including the corresponding entry in the Table.
Note (3): Indicates if a source is detected in the two submaps calculated by
splitting the data into half (see 3.2.5). Code as follows:
1,2 = the source is detected in both submaps,
1 = the source is detected in submap 1,
2 = the source is detected in submap 2,
0 = the source is not detected in any submap.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 04-Jan-2012