J/ApJ/806/110 ALESS survey: SMGs in the ECDF-S data (da Cunha+, 2015)
An ALMA survey of sub-millimeter galaxies in the extended Chandra Deep
Field-South: physical properties derived from ultraviolet-to-radio modeling.
da Cunha E., Walter F., Smail I.R., Swinbank A.M., Simpson J.M.,
Decarli R., Hodge J.A., Weiss A., van der Werf P.P., Bertoldi F.,
Chapman S.C., Cox P., Danielson A.L.R., Dannerbauer H., Greve T.R.,
Ivison R.J., Karim A., Thomson A.
<Astrophys. J., 806, 110 (2015)>
=2015ApJ...806..110D 2015ApJ...806..110D (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, photometry ; Millimetric/submm sources ; Redshifts
Keywords: galaxies: evolution; galaxies: ISM; submillimeter: galaxies
Abstract:
The ALESS survey has followed up on a sample of 122 sub-millimeter
sources in the Extended Chandra Deep Field South at 870µm with the
Atacama Large Millimeter Array (ALMA), allowing us to pinpoint the
positions of sub-millimeter galaxies (SMGs) to ∼0.3" and to find their
precise counterparts at different wavelengths. This enabled the first
compilation of the multi-wavelength spectral energy distributions
(SEDs) of a statistically reliable survey of SMGs. In this paper, we
present a new calibration of the magphys SED modeling code that is
optimized to fit these ultraviolet-to-radio SEDs of z>1 star-forming
galaxies using an energy balance technique to connect the emission
from stellar populations, dust attenuation, and dust emission in a
physically consistent way. We derive statistically and physically
robust estimates of the photometric redshifts and physical parameters
(such as stellar masses, dust attenuation, star formation rates
(SFRs), and dust masses) for the ALESS SMGs.
Description:
We choose to include only the 99 sub-millimeter galaxies (SMGs) from
the main ALESS catalog (Hodge et al. 2013, J/ApJ/768/91) in our
analysis, because they are the most statistically reliable sample of
SMGs and therefore allow for a complete and unbiased study of this
population of galaxies.
To sample the rest-frame stellar emission of our galaxies, we use the
(aperture) photometry of the ALESS counterparts (based on the ALMA
positions) compiled by Simpson et al. (2014ApJ...788..125S 2014ApJ...788..125S) from
archival ground-based and Spitzer/IRAC observations of the ECDF-S;
this provides photometry in up to 19 bands (UBVRIzJHK, 3.6-8um) for
each galaxy. See section 2.1.
We use the mid-infrared, far-infrared, and radio fluxes of the ALESS
sources compiled in Swinbank et al. (2014MNRAS.438.1267S 2014MNRAS.438.1267S).
See section 2.2.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 141 99 Median-likelihood estimates (and confidence ranges)
of several physical parameters for each ALESS
sub-millimeter galaxy (SMG)
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See also:
VIII/95 : Herschel Multi-tiered Extragalactic Survey (Oliver+, 2012)
J/MNRAS/442/577 : Selected ALESS submm gal. radio properties (Thomson+, 2014)
J/MNRAS/441/1017 : Multiwavelength photometry of 34 galaxies (Rowlands+, 2014)
J/ApJ/768/91 : ALMA observations of LESS submm galaxies (Hodge+, 2013)
J/ApJS/205/13 : VLA 1.4GHz survey of ECDF-S (DR2) (Miller+, 2013)
J/ApJ/765/9 : Predicted CO & [CII] fluxes of HUDF gal. (da Cunha+, 2013)
J/A+A/533/A119 : GOODS-Herschel North and South catalogs (Elbaz+, 2011)
J/A+A/532/A90 : PACS Evolutionary Probe (PEP-DR1) catalogs (Lutz+, 2011)
J/MNRAS/415/1479 : LESS photometric redshift survey (Wardlow+, 2011)
J/MNRAS/413/2314 : Radio and MIR counterpart of submm galaxies (Biggs+, 2011)
J/ApJ/727/1 : IRAC/MUSYC SIMPLE survey (Damen+, 2011)
J/ApJ/707/1201 : LABOCA ECDFS Submillimeter Survey (LESS) (Weiss+, 2009)
J/ApJ/703/1672 : Far-IR and Hα fluxes in galaxies (Kennicutt+, 2009)
J/ApJS/183/295 : A K-selected catalog of the ECDFS from MUSYC (Taylor+, 2009)
J/MNRAS/379/1571 : SCUBA Half-Degree Extragalactic Survey. IV (Aretxaga+, 2007)
J/ApJ/622/772 : Redshift survey of submillimeter galaxies (Chapman+, 2005)
J/ApJ/554/803 : New VLA Sky Survey (NVSS) of IRAS 2Jy Galaxies (Yun+ 2001)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- [HKS2013] ALESS identifier (ALESSNNN.NN)
13- 16 F4.2 --- zph [1.3/6.2] Photometric redshift
18- 21 F4.2 --- e_zph [0/2.8] zph negative uncertainty
23- 26 F4.2 --- E_zph [0.01/5.3] zph positive uncertainty
28- 32 F5.2 [Msun] logM [8.3/11.9] Stellar mass
34- 37 F4.2 [Msun] e_logM [0/1.3] logM negative uncertainty
39- 43 F5.3 [Msun] E_logM [0/0.8] logM positive uncertainty
45- 48 F4.2 [Msun/yr] logSFR [0.6/3.4] Star formation rate
50- 53 F4.2 [Msun/yr] e_logSFR [0.01/2.7] logSFR negative uncertainty
55- 58 F4.2 [Msun/yr] E_logSFR [0/2] logSFR positive uncertainty
60- 63 F4.2 [yr] logAge [7.2/9.2] Mass-weighted age
65- 68 F4.2 [yr] e_logAge [0/1.6] logAge negative uncertainty
70- 73 F4.2 [yr] E_logAge [0/1.13] logAge positive uncertainty
75- 77 F3.1 mag Av [0/6.6] Average V-band dust attenuation
79- 81 F3.1 mag e_Av [0/4.9] AV negative uncertainty
83- 85 F3.1 mag E_Av [0/7.3] AV positive uncertainty
87- 91 F5.2 --- logM/L [-0.8/0.9] H-band mass-to-light ratio
93- 96 F4.2 --- e_logM/L [0/1.2] logM/L negative uncertainty
98-101 F4.2 --- E_logM/L [0/1.4] logM/L positive uncertainty
103-107 F5.2 [Lsun] logLd [10.1/13.5] Total dust luminosity
109-112 F4.2 [Lsun] e_logLd [0.01/2.5] logLd negative uncertainty
114-117 F4.2 [Lsun] E_logLd [0/2] logLd positive uncertainty
119-120 I2 K Td [29/66] Luminosity-averaged dust temperature
122-123 I2 K e_Td [0/30] Td negative uncertainty
125-126 I2 K E_Td [0/25] Td positive uncertainty
128-131 F4.2 --- logMd [6.3/9.4] Total dust mass
133-136 F4.2 --- e_logMd [0/2.5] logMd negative uncertainty
138-141 F4.2 --- E_logMd [0.01/2.2] logMd positive uncertainty
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 15-Oct-2015