J/MNRAS/413/2314 Radio and mid-IR counterpart of submm galaxies (Biggs+, 2011)
The LABOCA survey of the Extended Chandra Deep Field-South.
Radio and mid-infrared counterparts to submillimetre galaxies.
Biggs A.D., Ivison R.J., Ibar E., Wardlow J.L., Dannerbauer H., Smail I.,
Walter F., Weiss A., Chapman S.C., Coppin K.E.K., De Breuck C.,
Dickinson M., Knudsen K.K., Mainieri V., Menten K., Papovich C.
<Mon. Not. R. Astron. Soc., 413, 2314-2338 (2011)>
=2011MNRAS.413.2314B 2011MNRAS.413.2314B (SIMBAD/NED BibCode)
ADC_Keywords: Millimetric/submm sources ; Galaxies, IR ; Galaxies, radio
Keywords: galaxies: formation - galaxies: starburst - cosmology: observations -
early Universe
Abstract:
We present radio and infrared (3.6-24um) counterparts to submillimetre
galaxies (SMGs) detected in the Extended Chandra Deep Field-South with
the Large APEX Bolometer Camera (LABOCA) 870um bolometer camera on the
12m Atacama Pathfinder Experiment. Using the Very Large Array at
.4GHz and Spitzer, we have identified secure counterparts to 79 of
the 126 SMGs [signal-to-noise ratio (S/N)>3.7, S870>4.4mJy] in the
field, 62 via their radio and/or 24um emission, the remainder using a
colour-flux cut on Infrared Array Camera 3.6um and 5.8um sources
chosen to maximize the number of secure, coincident radio and 24um
counterparts.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 115 150 Radio properties of potential counterparts to
LESS 870um sources in the ECDF-S
table2.dat 116 178 24um properties of potential counterparts to
LESS 870um sources in the ECDF-S
table3.dat 116 77 IRAC properties of potential counterparts to
LESS 870um sources in the ECDF-S that do not have
robust counterparts identified in either the radio
or at 24um and fall within the colour-flux cut
shown in Fig. 3
table4.dat 52 89 *Summary of counterparts to SMGs
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Note on table4.dat: We show the deboosted submm, MIPS 24um and deboosted
radio flux densities for each robust counterpart.
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See also:
B/chandra : The Chandra Archive Log (CXC, 1999-)
J/MNRAS/411/505 : Sub-mm observations in Extended Chandra DFS (Chapin+, 2011)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/126] Sequential number
5- 8 A4 --- --- [LESS]
10- 25 A16 --- LESS SMG name (JHHMMSS.s+DDMMSS) (G1)
26 A1 --- n_LESS [*] Note on LESS (1)
27- 28 I2 h RAh Submm right ascension (J2000)
30- 31 I2 min RAm Submm right ascension (J2000)
33- 37 F5.2 s RAs Submm right ascension (J2000)
39 A1 --- DE- Submm declination sign (J2000)
40- 41 I2 deg DEd Submm declination (J2000)
43- 44 I2 arcmin DEm Submm declination (J2000)
46- 49 F4.1 arcsec DEs Submm declination (J2000)
51- 54 F4.1 arcsec rr Search radius for radio counterpart
56- 57 I2 h RA2h ? Radio counterpart right ascension (J2000)
59- 60 I2 min RA2m ? Radio counterpart right ascension (J2000)
62- 68 F7.4 s RA2s ? Radio counterpart right ascension (J2000)
70 A1 --- DE2- Radio counterpart declination sign (J2000)
71- 72 I2 deg DE2d ? Radio counterpart declination (J2000)
74- 75 I2 arcmin DE2m ? Radio counterpart declination (J2000)
77- 82 F6.3 arcsec DE2s ? Radio counterpart declination (J2000)
84- 89 F6.1 uJy FR ? 1.4GHz radio flux (2)
91- 94 F4.1 uJy e_FR ? rms uncertainty on FR
96- 98 F3.1 arcsec Off.R ? Offset between submm and radio sources
102 A1 --- f_p.R [*b(s] Quality flag for counterpart (G2)
104-108 F5.3 --- p.R ? Probality of spurious counterpart
110-115 A6 --- n_p.R Additional information for p.R
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Note (1): * indicates that they are not on the Miller et al. (2008,
Cat. J/ApJS/179/114) map; radio counterparts have instead been
searched for using our own reduction.
Note (2): Although not used in the p-statistic procedure, all radio fluxes
have been corrected for flux boosting (Section 2.2.3.)
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/126] Sequential number
5- 8 A4 --- --- [LESS]
10- 25 A16 --- LESS SMG name (JHHMMSS.s+DDMMSS) (G1)
26 A1 --- n_LESS [*] Note on LESS (1)
27- 28 I2 h RAh Submm right ascension (J2000)
30- 31 I2 min RAm Submm right ascension (J2000)
33- 37 F5.2 s RAs Submm right ascension (J2000)
39 A1 --- DE- Submm declination sign (J2000)
40- 41 I2 deg DEd Submm declination (J2000)
43- 44 I2 arcmin DEm Submm declination (J2000)
46- 49 F4.1 arcsec DEs Submm declination (J2000)
51- 54 F4.1 arcsec r24 Search radius for radio counterpart
56- 57 I2 h RA2h ? 24um counterpart right ascension (J2000)
59- 60 I2 min RA2m ? 24um counterpart right ascension (J2000)
62- 68 F7.4 s RA2s ? 24um counterpart right ascension (J2000)
70 A1 --- DE2- 24um counterpart declination sign (J2000)
71- 72 I2 deg DE2d ? 24um counterpart declination (J2000)
74- 75 I2 arcmin DE2m ? 24um counterpart declination (J2000)
77- 82 F6.3 arcsec DE2s ? 24um counterpart declination (J2000)
84- 89 F6.1 uJy F24 ? 24um flux
91- 94 F4.1 uJy e_F24 ? rms uncertainty on F24
96- 98 F3.1 arcsec Off.24 ? Offset between 24um and radio sources
102 A1 --- f_p24 [*b(] Quality flag for counterpart (G2)
104-108 F5.3 --- p24 ? Probability of spurious counterpart
110-116 A7 --- n_p24 Additional information for p24
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Note (1): * indicates not fully covered by the FIDEL map.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/126] Sequential number
5- 8 A4 --- --- [LESS]
10- 25 A16 --- LESS SMG name (JHHMMSS.s+DDMMSS)
26 A1 --- n_LESS [*] Note on LESS (1)
27- 28 I2 h RAh Submm right ascension (J2000)
30- 31 I2 min RAm Submm right ascension (J2000)
33- 37 F5.2 s RAs Submm right ascension (J2000)
39 A1 --- DE- Submm declination sign (J2000)
40- 41 I2 deg DEd Submm declination (J2000)
43- 44 I2 arcmin DEm Submm declination (J2000)
46- 49 F4.1 arcsec DEs Submm declination (J2000)
51- 54 F4.1 arcsec r5.8 Search radius for radio counterpart
56- 57 I2 h RA2h ? 5.8um counterpart right ascension (J2000)
59- 60 I2 min RA2m ? 5.8um counterpart right ascension (J2000)
62- 68 F7.4 s RA2s ? 5.8um counterpart right ascension (J2000)
70 A1 --- DE2- 5.8um counterpart declination sign (J2000)
71- 72 I2 deg DE2d ? 5.8um counterpart declination (J2000)
74- 75 I2 arcmin DE2m ? 5.8um counterpart declination (J2000)
77- 82 F6.3 arcsec DE2s ? 5.8um counterpart declination (J2000)
86- 89 F4.1 uJy F5.8 ? 5.8um flux
92- 94 F3.1 uJy e_F5.8 ? rms uncertainty on F5.8
96- 98 F3.1 arcsec Offset5.8 ? Offset between 5.8um and radio sources
102 A1 --- f_p5.8 [*b(] Quality flag for counterpart (G2)
104-108 F5.3 --- p5.8 ? Probality of counterpart
110-116 A7 --- n_p5.8 Additional information for p5.8
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Note (1): * indicates not fully covered by the SIMPLE data at both 3.6um
and 5.8um and so counterparts for them could not be found with this
method.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/126] Sequential number
5- 8 F4.1 mJy F870 ? Flux at 870um
10- 12 F3.1 mJy e_F870 ? rms uncertainty on F870
14- 19 F6.1 uJy F24 ? Flux at 24um
21- 24 F4.1 uJy e_F24 ? rms uncertainty on F24
26- 31 F6.1 uJy FR ? Flux at 21cm (1.4GHz)
33- 36 F4.1 uJy e_FR ? rms uncertainty on FR
39- 42 F4.2 --- z ? Redshift estimated from the
submm/radio spectral index (1)
44- 47 F4.2 --- E_z ? Error on z (upper value)
49- 52 F4.2 --- e_z ? Error on z (lower value)
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Note (1): LESS063 and 118 have not had redshifts calculated as the radio
emission may be spurious. We have also not calculated the redshifts
when there are multiple robust radio counterparts.
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Global notes:
Note (G1): SMGs are listed in order of decreasing S/N.
Note (G2): Counterpart probability flag as follows:
* = secure counterpart (p≤0.05)
b = counterpart with 0.05<p≤0.1 is obtained at two out of radio,
24um (Table 2) or 5.8um (Table 3)
( = counterpart with 0.05<pr≤0.1
s = counterpart which formally have p≤0.05 but may be spurious
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 29-Dec-2011