J/ApJ/626/L15 Templates for photometric redshifts of submm sources (Hunt+, 2005)
Improved templates for photometric redshifts of submillimeter sources.
Hunt L.K., Maiolino R.
<Astrophys. J., 626, L15-L18 (2005)>
=2005ApJ...626L..15H 2005ApJ...626L..15H
ADC_Keywords: Galaxies, IR ; Millimetric/submm sources ; Redshifts
Keywords: galaxies: high-redshift - galaxies: starburst - infrared: galaxies -
submillimeter
Abstract:
There is growing evidence that some star-forming galaxies at z>1 are
characterized by high efficiencies and specific star formation rates.
In the local universe, these traits are shared by "active" blue
compact dwarf galaxies (BCDs) with compact and dense star-forming
regions. The spectral energy distributions (SEDs) of these BCDs are
dominated by young massive star clusters, embedded in a cocoon of
dust. In this Letter, we incorporate these BCD SEDs as templates for
two samples of high-redshift galaxy populations selected at
submillimeter wavelengths.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 78 8 Photometric redshifts zphot-zspec and
residuals for submillimeter-selected SCUBA
sources with VLA and Spitzer data
table2.dat 78 42 Photometric redshifts zphot-zspec and
residuals for SCUBA/VLA sources
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See also:
J/ApJ/622/772 : Redshift survey of submillimeter galaxies (Chapman+, 2005)
Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- Name Source name (2) (1)
20- 23 F4.2 --- zspec ? Spectroscopic redshift (2)
25- 28 F4.2 --- <Res> ? Lowest residuals for z=zspec obtained
with Template
30 I1 --- Template ? Corresponding template
32- 36 F5.2 --- zII-0.5-30 IIZw40 photometric redshift
(α=-0.5 AV=30mag) (3)
38- 42 F5.2 --- zII-0.5-20 IIZw40 photometric redshift
(α=-0.5 AV=20mag) (3)
44- 48 F5.2 --- zII-0.1-30 IIZw40 photometric redshift
(α=-0.1 AV=30mag) (3)
50- 54 F5.2 --- zII-0.1-20 IIZw40 photometric redshift
(α=-0.1 AV=20mag) (3)
56- 60 F5.2 --- zNGC-0.1-10 NGC5253 photometric redshift
(α=-0.1 AV=10mag) (3)
62- 66 F5.2 --- zSBS-0.3-30 SBS 0335-052 photometric redshift
(α=-0.3 AV=30mag) (3)
68- 72 F5.2 --- zM82 M82 photometric redshift (3)
74- 78 F5.2 --- zArp220 Arp220 photometric redshift (3)
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Note (1): Source name:
Frayer 199 = [FCY2004] 199 in Simbad (Table 1)
LE 850.NN = [IGS2002] LE 850.NNa in Simbad (Table 1)
FN 1-40 = FIRBACK FN1 040 in Simbad (Table 2)
FN 1-64 = FIRBACK CFN1 064 in Simbad (Table 2)
JHHMMSS.ss+DDMMSS.s = [CBS2005] SMM JHHMMSS.ss+DDMMSS.s in Simbad (Table 2)
except for J141800.50+512820.8 which is
most likely J141800.40+512820.3 in J/ApJ/622/772
Note (2): For table 1, zspec from Higdon et al. (2004ApJS..154..174H 2004ApJS..154..174H), Frayer
et al. (2004ApJS..154..137F 2004ApJS..154..137F), Ivison et al. (2004ApJS..154..124I 2004ApJS..154..124I),
Chapman et al. (2005, Cat. J/ApJ/622/772), and Egami et al.
(2004ApJS..154..130E 2004ApJS..154..130E).
For Table 2, sources and zspec from Chapman et al.
(2002ApJ...573...66C 2002ApJ...573...66C, 2005, Cat. J/ApJ/622/772).
Note (3): Mean difference zphot-zspec () and standard deviation averaged
over the sample, where α is the radio spectral index:
-- For II Zw 40: α=-0.5, AV=30 =-0.93±0.53 in table1
-- For II Zw 40: α=-0.5, AV=30 =0.25±1.13 in table2
-- For II Zw 40: α=-0.5, AV=20 =0.02±0.54 in table1
-- For II Zw 40: α=-0.5, AV=20 =0.26±1.05 in table2
-- For II Zw 40: α=-0.1, AV=30 =-0.90±0.55 in table1
-- For II Zw 40: α=-0.1, AV=30 =0.14±1.20 in table2
-- For II Zw 40: α=-0.1, AV=20 =0.02±0.50 in table1
-- For II Zw 40: α=-0.1, AV=20 =0.19±1.18 in table2
-- For NGC 5253: α=-0.1, AV=10 =0.90±0.73 in table1
-- For NGC 5253: α=-0.1, AV=10 =0.10±1.12 in table2
-- For SBS 0335-052: α=-0.3, AV=30 =0.17±0.61 in table1
-- For SBS 0335-052: α=-0.3, AV=30 =4.89±0.83 in table2
-- For M82: =2.45±1.52 in table1
-- For M82: =0.47±1.05 in table2
-- For Arp 220: =0.82±1.00 in table1
-- For Arp 220: =0.79±1.02 in table2
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 16-Dec-2005