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. =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: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- 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 -------------------------------------------------------------------------------- See also: J/ApJ/622/772 : Redshift survey of submillimeter galaxies (Chapman+, 2005) Byte-by-byte Description of file: table1.dat table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 18 A18 --- Name Source name (2) (1) 20- 23 F4.2 --- zspec ? Spectroscopic redshift (2) 25- 28 F4.2 --- ? Lowest residuals for z=zspec obtained with Template 30 I1 --- Template ? Corresponding template 32- 36 F5.2 --- zII-0.5-30 IIZw40 photometric redshift ({alpha}=-0.5 A_V_=30mag) (3) 38- 42 F5.2 --- zII-0.5-20 IIZw40 photometric redshift ({alpha}=-0.5 A_V_=20mag) (3) 44- 48 F5.2 --- zII-0.1-30 IIZw40 photometric redshift ({alpha}=-0.1 A_V_=30mag) (3) 50- 54 F5.2 --- zII-0.1-20 IIZw40 photometric redshift ({alpha}=-0.1 A_V_=20mag) (3) 56- 60 F5.2 --- zNGC-0.1-10 NGC5253 photometric redshift ({alpha}=-0.1 A_V_=10mag) (3) 62- 66 F5.2 --- zSBS-0.3-30 SBS 0335-052 photometric redshift ({alpha}=-0.3 A_V_=30mag) (3) 68- 72 F5.2 --- zM82 M82 photometric redshift (3) 74- 78 F5.2 --- zArp220 Arp220 photometric redshift (3) -------------------------------------------------------------------------------- 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), Frayer et al. (2004ApJS..154..137F), Ivison et al. (2004ApJS..154..124I), Chapman et al. (2005, Cat. ), and Egami et al. (2004ApJS..154..130E). For Table 2, sources and zspec from Chapman et al. (2002ApJ...573...66C, 2005, Cat. ). Note (3): Mean difference zphot-zspec () and standard deviation averaged over the sample, where {alpha} is the radio spectral index: -- For II Zw 40: {alpha}=-0.5, A_V_=30 =-0.93+/-0.53 in table1 -- For II Zw 40: {alpha}=-0.5, A_V_=30 =0.25+/-1.13 in table2 -- For II Zw 40: {alpha}=-0.5, A_V_=20 =0.02+/-0.54 in table1 -- For II Zw 40: {alpha}=-0.5, A_V_=20 =0.26+/-1.05 in table2 -- For II Zw 40: {alpha}=-0.1, A_V_=30 =-0.90+/-0.55 in table1 -- For II Zw 40: {alpha}=-0.1, A_V_=30 =0.14+/-1.20 in table2 -- For II Zw 40: {alpha}=-0.1, A_V_=20 =0.02+/-0.50 in table1 -- For II Zw 40: {alpha}=-0.1, A_V_=20 =0.19+/-1.18 in table2 -- For NGC 5253: {alpha}=-0.1, A_V_=10 =0.90+/-0.73 in table1 -- For NGC 5253: {alpha}=-0.1, A_V_=10 =0.10+/-1.12 in table2 -- For SBS 0335-052: {alpha}=-0.3, A_V_=30 =0.17+/-0.61 in table1 -- For SBS 0335-052: {alpha}=-0.3, A_V_=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 -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Greg Schwarz [AAS], Marianne Brouty [CDS] 16-Dec-2005