J/MNRAS/426/1845 AzTEC survey of the SHADES fields. II. (Michalowski+, 2012)
AzTEC half square degree survey of the SHADES fields.
II. Identifications, redshifts and evidence for large-scale structure.
Michalowski M.J., Dunlop J.S., Ivison R.J., Cirasuolo M., Caputi K.I.,
Aretxaga I., Arumugam V., Austermann J.E., Chapin E.L., Chapman S.C.,
Coppin K.E.K., Egami E., Hughes D.H., Ibar E., Mortier A.M.J., Schael A.M.,
Scott K.S., Smail I., Targett T.A., Wagg J., Wilson G.W., Xu L., Yun M.
<Mon. Not. R. Astron. Soc., 426, 1845-1866 (2012)>
=2012MNRAS.426.1845M 2012MNRAS.426.1845M
ADC_Keywords: Surveys; Millimetric/submm sources ; Radio sources ; Redshifts
Keywords: galaxies: distances and redshifts - galaxies: evolution -
galaxies: high-redshift - galaxies: stellar content -
cosmology: miscellaneous - submillimetre: galaxies
Abstract:
The Astronomical Thermal Emission Camera (AzTEC) 1.1mm survey of the
two SCUBA HAlf Degree Extragalactic Survey (SHADES) fields is the
largest (0.7deg2) blank-field millimetre-wavelength (mm-wavelength)
survey undertaken to date at a resolution of 18arcsec and a depth of
1mJy. We have used the deep optical to radio multiwavelength data in
the SHADES Lockman Hole East and SXDF/UDS fields to obtain galaxy
identifications for 64 per cent (80 per cent including tentative
identifications) of the 148 AzTEC-SHADES 1.1mm sources reported by
Austermann et al., exploiting deep radio and 24um data complemented by
methods based on 8um flux density and red optical-infrared (i-K)
colour.
Description:
We utilized the JCMT/AzTEC 1.1mm maps and catalogues from Austermann
et al. (2010, Cat. J/MNRAS/401/160). These data cover 0.7deg2 to an
rms depth of 0.9-1.7mJy/beam. We selected all 148 sources presented by
Austermann et al. (2010, Cat. J/MNRAS/401/160) with signal-to-noise
ratios (S/Ns) > 3.5, and adopted the statistically deboosted 1.1mm
flux densities.
The VLA 1.4GHz and GMRT 0.61GHz radio data were taken from Ivison et
al. (2005MNRAS.364.1025I 2005MNRAS.364.1025I, 2007, Cat. J/MNRAS/380/199) and Ibar et al.
(2009, Cat. J/MNRAS/397/281, 2010MNRAS.401L..53I 2010MNRAS.401L..53I), respectively.
The mid-IR Spitzer data in the Lockman Hole East field are from
programmes PID 81 (PI: G. Rieke) and PID 50249 (PI: E. Egami),
described in Egami et al. (2004ApJS..154..130E 2004ApJS..154..130E) and Dye et al.
(2008MNRAS.386.1107D 2008MNRAS.386.1107D), whereas in the UDS field the mid-IR data are
from the Spitzer Public Legacy Survey of the UKIDSS UDS (PI: J.
Dunlop, http://ssc.spitzer.caltech.edu/spitzermission/observingprograms/
legacy/spuds/) described in Caputi et al. (2011MNRAS.413..162C 2011MNRAS.413..162C).
The optical data in both fields were obtained with Subaru/SuprimeCam,
as described in Dye et al. (2006MNRAS.372.1227D 2006MNRAS.372.1227D) and Furusawa et al.
(2008, Cat. J/ApJS/176/1). The near-IR data in both fields are
provided by the UKIRT Infrared Deep Sky Survey (UKIDSS; Lawrence et
al. 2007, Cat. II/314) with the SXDF/UDS field benefitting from the
ultradeep J, H, K coverage provided by the UDS (e.g. Cirasuolo et al.
2010MNRAS.401.1166C 2010MNRAS.401.1166C), while the Lockman Hole East field is part of the
somewhat shallower UKIDSS DXS (Warren et al., 2007MNRAS.375..213W 2007MNRAS.375..213W).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tableb1.dat 357 153 Reliable and tentative radio, 24um, 8.0um and
i-K identifications in the Lockman Hole field
tableb2.dat 305 89 Reliable and tentative radio, 24um, 8.0um and
i-K identifications in the UDS field
tableb3.dat 272 335 Radio and 24um identifications in the
Lockman Hole field
tableb4.dat 199 137 All radio and 24um identifications in the
UDS field
notes.dat 80 238 Individual notes
--------------------------------------------------------------------------------
See also:
J/A+A/329/482 : ROSAT Deep Survey in the Lockman Hole (Hasinger+, 1998)
J/PASJ/53/445 : ASCA Deep survey in Lockman Hole Field (Ishisaki+, 2001)
J/MNRAS/371/963 : Deep VLA survey in Lockman Hole, HDFN, ELAIS N2 (Biggs+ 2006)
J/MNRAS/380/199 : SCUBA Half-Degree Extragalactic Survey. III (Ivison+, 2007)
J/ApJS/176/1 : Subaru/XMM-Newton deep survey (SXDS). II. (Furusawa+, 2008)
J/MNRAS/397/281 : Radio imaging in Lockman Hole (Ibar+, 2009)
J/ApJS/185/433 : SWIRE/Chandra survey in Lockman Hole Field (Wilkes+, 2009)
J/ApJS/198/1 : Photometry catalogs for the Lockman Hole (Fotopoulou+, 2012)
J/MNRAS/401/160 : AzTEC survey of the SHADES fields. I. (Austermann+, 2010)
Byte-by-byte Description of file: tableb1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- No [1/91] AzTEC source number, AzLOCK NN
4- 9 A6 --- --- [AzTEC_]
10- 24 A15 --- AzTEC AzTEC source name (JHHMMSS.s+DDMMSS)
26- 34 F9.7 mJy S1.1mm 1.1mm deboosted flux
36- 44 F9.7 mJy E_S1.1mm Upper error of 1.1mm Flux
46- 54 F9.7 mJy e_S1.1mm Lower error of 1.1mm Flux
56- 66 F11.7 deg RAdeg ?=-99 Right Ascension (radio, or mid-IR or
optical) (J2000) (G1)
68- 78 F11.7 deg DEdeg ?=-99 Declination (radio, or mid-IR or
optical) (J2000) (G1)
80- 90 F11.7 uJy S1.4 ?=-99 1.4 GHz flux (G1)
92-102 F11.7 uJy e_S1.4 ?=-99 Error of 1.4GHz flux (G1)
104-114 F11.7 arcsec r1.4 ?=-99 Distance of the 1.4GHz ID to the
AzTEC position (G1)
116-126 F11.7 --- p1.4 [0/1]?=-99 Probability of the chance association
of the 1.4GHz ID (G1)
128-139 F12.7 uJy S24um ?=-99 24um flux (G1)
141-151 F11.7 uJy e_S24um ?=-99 Error of 24um flux (G1)
153-163 F11.7 arcsec r24 ?=-99 Distance of the 24um ID to the
AzTEC position (G1)
165-175 F11.7 --- p24 [0/1]?=-99 Probability of the chance association
of the 24um ID (G1)
177-187 F11.7 uJy S0.6 ?=-99 0.6GHz flux (G1)
189-199 F11.7 uJy e_S0.6 ?=-99 Error of 0.6GHz flux (G1)
201-211 F11.7 arcsec r0.6 ?=-99 Distance of the 0.6GHz ID to the
AzTEC position (G1)
213-223 F11.7 --- p0.6 [0/1]?=-99 Probability of the chance association
of the 0.6GHz ID (G1)
225-236 F12.7 uJy S8um ?=-99 8um flux (G1)
238-248 F11.7 uJy e_S8um ?=-99 Error of 8um flux (G1)
250-260 F11.7 arcsec r8 ?=-99 Distance of the 8um ID to the
AzTEC position (G1)
262-272 F11.7 --- p8 [0/1]?=-99 Probability of the chance association
of the 8um ID (G1)
274-284 F11.7 mag Kmag ?=-99 K-band magnitude (G1)
286-296 F11.7 mag i-K ?=-99 i-K colour (G1) (G3)
298-308 F11.7 arcsec ri-K ?=-99 Distance of the i-K ID to the
AzTEC position (G1)
310-320 F11.7 --- pi-K [0/1]?=-99 Probability of the chance association
of the i-K ID (G1)
322-331 F10.7 --- z Redshift (G2)
333-342 F10.7 --- E_z Upper error of redshift
344-353 F10.7 --- e_z Lower error of redshift
355 I1 --- qID [0/3] The category of the ID (G4)
357 I1 --- bID [0/1] Flag indicating if this is the best ID
for a given AzTEC source (1=Yes, 0=No)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- No [1/57] AzTEC source number, AzUDS NN
4- 9 A6 --- --- [AzTEC_]
10- 24 A15 --- AzTEC AzTEC source name (JHHMMSS.s+DDMMSS)
26- 34 F9.7 mJy S1.1mm 1.1mm deboosted flux
36- 44 F9.7 mJy E_S1.1mm Upper error of 1.1mm flux
46- 54 F9.7 mJy e_S1.1mm Lower error of 1.1mm flux
56- 66 F11.7 deg RAdeg ?=-99 Right Ascension (radio, or mid-IR or
optical) (J2000) (G1)
68- 78 F11.7 deg DEdeg ?=-99 Declination (radio, or mid-IR or
optical) (J2000) (G1)
80- 90 F11.7 uJy S1.4 ?=-99 1.4GHz flux (G1)
92-102 F11.7 uJy e_S1.4 ?=-99 Error of 1.4GHz flux (G1)
104-114 F11.7 arcsec r1.4 ?=-99 Distance of the 1.4GHz ID to the
AzTEC position (G1)
116-126 F11.7 --- p1.4 [0/1]?=-99 Probability of the chance association
of the 1.4GHz ID (G1)
128-139 F12.7 uJy S24um ?=-99 24um flux (G1)
141-151 F11.7 uJy e_S24um ?=-99 Error of 24um flux (G1)
153-163 F11.7 arcsec r24 ?=-99 Distance of the 24um ID to the
AzTEC position (G1)
165-175 F11.7 --- p24 [0/1]?=-99 Probability of the chance association
of the 24um ID (G1)
177-187 F11.7 uJy S8um ?=-99 8um flux (G1)
188-198 F11.7 uJy e_S8um ?=-99 Error of 8um flux (G1)
200-210 F11.7 arcsec r8 ?=-99 Distance of the 8um ID to the
AzTEC position (G1)
212-222 F11.7 --- p8 [0/1]?=-99 Probability of the chance association
of the 8um ID (G1)
224-234 F11.7 mag Kmag ?=-99 K-band magnitude (G1)
236-246 F11.7 mag i-K ?=-99 i-K colour (G1) (G3)
248-258 F11.7 arcsec ri-K ?=-99 Distance of the i-K ID to the
AzTEC position (G1)
260-270 F11.7 --- pi-K [0/1]?=-99 Probability of the chance association
of the i-K ID (G1)
272-281 F10.7 --- z Redshift (G2)
283-291 F9.7 --- E_z Upper error of redshift
293-301 F9.7 --- e_z Lower error of redshift
303 I1 --- qID [0/3] The category of the ID (G4)
305 I1 --- bID Flag indicating if this is the best ID for a
given AzTEC source (1=Yes, 0=No)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- No [1/91] AzTEC source number, AzLOCK NN
4- 9 A6 --- --- [AzTEC_]
10- 24 A15 --- AzTEC AzTEC source name (JHHMMSS.s+DDMMSS)
26- 34 F9.7 mJy S1.1mm 1.1mm deboosted flux
36- 44 F9.7 mJy e_S1.1mm Lower error of 1.1mm flux
46- 54 F9.7 mJy E_S1.1mm Upper error of 1.1mm flux
56- 66 F11.7 deg RAdeg ?=-99 Right Ascension of 1.4GHz ID (J2000) (G1)
68- 78 F11.7 deg DEdeg ?=-99 Declination of 1.4GHz ID (J2000) (G1)
80- 90 F11.7 uJy S1.4 ?=-99 1.4GHz flux (G1)
92-102 F11.7 uJy e_S1.4 ?=-99 Error of 1.4GHz flux (G1)
104-114 F11.7 arcsec r1.4 ?=-99 Distance of the 1.4GHz ID to the
AzTEC position (G1)
116-126 F11.7 --- p1.4 [0/1]?=-99 Probability of the chance association
of the 1.4GHz ID (G1)
128-138 F11.7 deg RA2deg ?=-99 Right Ascension of 24um ID (J2000) (G1)
140-150 F11.7 deg DE2deg ?=-99 Declination of 24um ID (J2000) (G1)
152-163 F12.7 uJy S24um ?=-99 24um flux (G1)
165-175 F11.7 uJy e_S24um ?=-99 Error of 24um flux (G1)
177-187 F11.7 arcsec r24 ?=-99 Distance of the 24um ID to the
AzTEC position (G1)
189-200 F12.7 --- p24 [0/1]?=-99 Probability of the chance association
of the 24um ID (G1)
202-212 F11.7 deg RA6deg ?=-99 Right Ascension of 0.6GHz ID (J2000) (G1)
214-224 F11.7 deg DE6deg ?=-99 Declination of 0.6GHz ID (J2000) (G1)
226-236 F11.7 uJy S0.6 ?=-99 0.6GHz flux (G1)
238-248 F11.7 uJy e_S0.6 ?=-99 Error of 0.6GHz flux (G1)
250-260 F11.7 arcsec r0.6 ?=-99 Distance of the 0.6GHz ID to the
AzTEC position (G1)
262-272 F11.7 --- p0.6 [0/1]?=-99 Probability of the chance association
of the 0.6GHz ID (G1)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tableb4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- No [1/57] AzTEC source number, AzUDS NN
4- 9 A6 --- --- [AzTEC_]
10- 24 A15 --- AzTEC AzTEC source name (JHHMMSS.s+DDMMSS)
26- 34 F9.7 mJy S1.1mm 1.1mm deboosted flux
36- 44 F9.7 mJy e_S1.1mm Lower error of 1.1mm flux
46- 54 F9.7 mJy E_S1.1mm Upper error of 1.1mm flux
56- 66 F11.7 deg RAdeg ?=-99 Right Ascension of 1.4GHz ID (J2000) (G1)
68- 78 F11.7 deg DEdeg ?=-99 Declination of 1.4GHz ID (J2000) (G1)
80- 90 F11.7 uJy S1.4 ?=-99 1.4GHz flux
92-102 F11.7 uJy e_S1.4 ?=-99 Error of 1.4GHz flux
104-114 F11.7 arcsec r1.4 ?=-99 Distance of the 1.4GHz ID to the
AzTEC position
116-126 F11.7 --- p1.4 [0/1]?=-99 Probability of the chance association
of the 1.4GHz ID
128-138 F11.7 deg RA2deg ?=-99 Right Ascension of 24um ID (J2000) (G1)
140-150 F11.7 deg DE2deg ?=-99 Declination of 24um ID (J2000) (G1)
152-163 F12.7 uJy S24um ?=-99 24um flux (G1)
165-175 F11.7 uJy e_S24um ?=-99 Error of 24um flux (G1)
177-187 F11.7 arcsec r24 ?=-99 Distance of the 24um ID to the
AzTEC position (G1)
189-199 F11.7 --- p24 [0/1]?=-99 Probability of the chance association
of the 24um ID (G1)
--------------------------------------------------------------------------------
Global notes:
Note (G1): -99 indicates that the ID has not been obtained at a given wavelength
Note (G2): The value of redshifts and their errors indicate the way it was
obtained:
* spectroscopic (optical or mid-IR): zPerr=zMerr=0
* photometric (optical): z>0, zPerr, zMerr are not zero
* photometric (mm/radio): z<0 (true value equal to -z),
E_z, e_z are not zero
* photometric lower limit (mm/radio): z<0 (true value equal to -z),
both errors (e_z and E_z) =0.
Note (G3): Negative value of K-band magnitude and i-K means that the ID was
not detected at K-band and hence the given i-K is an upper limit.
Note (G4): Category of the ID as follows:
1 = robust (chance association probability p<0.05)
2 = selected twice with 0.05<p<0.1
3 = selected once with 0.05<p<0.1
--------------------------------------------------------------------------------
Byte-by-byte Description of file: notes.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 A8 --- Name Name
10- 80 A71 --- Note Text of the note
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Austermann et al., Paper I 2010MNRAS.401..160A 2010MNRAS.401..160A, Cat. J/MNRAS/401/160
(End) Patricia Vannier [CDS] 15-Apr-2013