J/ApJ/712/942 z>4 submillimeter galaxies (Michalowski+, 2010)
Rapid dust production in submillimeter galaxies at z > 4?
Michalowski M.J., Watson D., Hjorth J.
<Astrophys. J., 712, 942-950 (2010)>
=2010ApJ...712..942M 2010ApJ...712..942M (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, photometry ; Millimetric/submm sources ; Redshifts
Keywords: galaxies: active - galaxies: evolution - galaxies: high-redshift -
galaxies: ISM - galaxies: starburst - submillimeter: galaxies
Abstract:
The existence of submillimeter-selected galaxies (SMGs) at redshifts
z>4 has recently been confirmed. Simultaneously using all the
available data from UV to radio, we have modeled the spectral energy
distributions of the six known spectroscopically confirmed SMGs at
z>4. We find that their star formation rates (average
∼2500M☉/yr), stellar (∼3.6x1011M☉) and dust
(∼6.7x108M☉) masses, extinction (AV∼2.2mag), and gas-to-dust
ratios (∼60) are within the ranges for 1.7<z<3.6 SMGs. Our analysis
suggests that infrared-to-radio luminosity ratios of SMGs do not
change up to redshift ∼5 and are lower by a factor of ∼2.1 than the
value corresponding to the local IR-radio correlation. However, we
also find dissimilarities between z>4 and lower-redshift SMGs. Those
at z>4 tend to be among the most star-forming, least massive, and
hottest (∼60K) SMGs and exhibit the highest fraction of stellar mass
formed in the ongoing starburst (∼45%).
Description:
In Michalowski et al. (2010A&A...514A..67M 2010A&A...514A..67M), we analyzed the full
UV-to-radio spectral energy distributions (SEDs) of 76 SMGs from the
Chapman et al. (2005, Cat. J/ApJ/622/772) sample with spectroscopic
redshifts up to z<3.6. Here, we extend that study by analyzing the
sample of six spectroscopically confirmed SMGs at z>4. The
photometric data are presented in Tables 1 and 2.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
smg.dat 92 6 Submillimeter-selected galaxies (SMGs) sample
table1.dat 76 104 Photometry detections of z>4 SMGs
table2.dat 76 60 Photometry upper limits of z>4 SMGs
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See also:
II/261 : GOODS initial results (Giavalisco+, 2004)
J/MNRAS/413/2314 : Radio and mid-IR counterpart of submm galaxies (Biggs+,
2011)
J/MNRAS/415/1479 : LESS photometric redshift survey (Wardlow+, 2011)
J/ApJ/699/1610 : Spitzer survey of submillimeter galaxies (Hainline+, 2009)
J/other/Nat/458.737 : BLAST sources at 250, 350 and 500um (Devlin+, 2009)
J/A+A/496/45 : CO maps of three lensed submillimetre galaxies (Knudsen+,
2009)
J/ApJ/622/772 : Redshift survey of submillimeter galaxies (Chapman+, 2005)
J/ApJ/626/L15 : Templates for photometric redshifts of submm sources
(Hunt+, 2005)
J/AJ/127/180 : The Hawaii Hubble Deep Field North (Capak+, 2004)
Byte-by-byte Description of file: smg.dat
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Bytes Format Units Label Explanations
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1- 21 A21 --- Name SMG name
23- 68 A46 --- OName Simbad other name(s)
70- 71 I2 h RAh Simbad hour of right ascension (J2000)
73- 74 I2 min RAm Simbad minute of right ascension (J2000)
76- 80 F5.2 s RAs Simbad second of right ascension (J2000)
82 A1 --- DE- Simbad sign of declination (J2000)
83- 84 I2 deg DEd Simbad degree of declination (J2000)
86- 87 I2 arcmin DEm Simbad arcminute of declination (J2000)
89- 92 F4.1 arcsec DEs Simbad arcsecond of declination (J2000)
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Byte-by-byte Description of file: table[12].dat
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Bytes Format Units Label Explanations
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1- 21 A21 --- Name SMG name (1)
23- 27 F5.3 --- z Redshift
29- 38 F10.3 um lambda [0.15/210000] Wavelength (far-UV to 21cm)
40- 48 F9.3 uJy flux Measured flux density (2)
50- 58 F9.3 uJy e_flux The 1σ error on flux (2)
60- 76 A17 --- r_flux Reference for flux (3)
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Note (1): The data for SMMJ163555.5+661300 has been corrected for lensing
magnification of a factor of 5.5.
Note (2): When the error is equal to zero, the flux column denotes 3σ
upper limit. Otherwise it denotes formal flux at the position of
a submillimeter-selected galaxy (SMG).
Note (3): Reference as follows:
capak04 = Capak et al. (2004, Cat. J/AJ/127/180)
capak08 = Capak et al. (2008ApJ...681L..53C 2008ApJ...681L..53C)
casey09 = Casey et al. (2009MNRAS.400..670C 2009MNRAS.400..670C)
coppin09 = Coppin et al. (2009MNRAS.395.1905C 2009MNRAS.395.1905C)
daddi09 = Daddi et al. (2009ApJ...695L.176D 2009ApJ...695L.176D)
daddi09b = Daddi et al. (2009ApJ...694.1517D 2009ApJ...694.1517D)
dannerbauer08 = Dannerbauer et al. (2008ApJ...673L.127D 2008ApJ...673L.127D)
devlin09 = Devlin et al. (2009, Cat. J/other/Nat/458.737)
frayer06 = Frayer et al. (2006ApJ...647L...9F 2006ApJ...647L...9F)
giavalisco04goods = Giavalisco et al. (2004, Cat. II/261)
greve08 = Greve et al. (2008MNRAS.389.1489G 2008MNRAS.389.1489G)
iono06 = Iono et al. (2006ApJ...640L...1I 2006ApJ...640L...1I)
knudsen09 = Knudsen et al. (2010ApJ...709..210K 2010ApJ...709..210K)
perera08 = Perera et al. (2008MNRAS.391.1227P 2008MNRAS.391.1227P)
pope06 = Pope et al. (2006MNRAS.370.1185P 2006MNRAS.370.1185P)
schinnerer08 = Schinnerer et al. (2008ApJ...689L...5S 2008ApJ...689L...5S)
wang04 = Wang et al. (2004ApJ...613..655W 2004ApJ...613..655W)
wang07 = Wang et al. (2007ApJ...670L..89W 2007ApJ...670L..89W)
wang09 = Wang et al. (2009ApJ...690..319W 2009ApJ...690..319W)
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 10-Apr-2012