J/A+A/630/A153 Staked SEDs and templates of LBGs at z∼3 (Alvarez-Marquez+, 2019)
Rest-frame far-ultraviolet to far-infrared view of Lyman break galaxies at z=3:
Templates and dust attenuation.
Alvarez-Marquez J., Burgarella D., Buat V., Ilbert O., Perez-Gonzalez P.G.
<Astron. Astrophys. 630, A153 (2019)>
=2019A&A...630A.153A 2019A&A...630A.153A (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Energy distributions ; Photometry
Keywords: galaxies: starburst - galaxies: high-redshift -
ultraviolet: galaxies - infrared: galaxies -
radio continuum: galaxies - dust, extinction
Abstract:
We explore, from a statistical point of view, the rest-frame
far-ultraviolet (FUV) to far-infrared (FIR) emission of a population
of Lyman-break galaxies (LBGs) at z∼3 that cannot be individually
detected from current FIR observations. We performed a stacking
analysis over a sample of ∼17000 LBGs at redshift 2.5<z<3.5 in the
COSMOS field. The sample is binned as a function of UV luminosity
(LFUV), UV continuum slope (betaUV), and stellar mass (M*), and
then stacked at optical (BVriz bands), near-infrared (YJHKs bands),
IRAC (3.6, 4.5, 5.6 and 8.0um), MIPS (24um), PACS (100 and 160 um),
SPIRE (250, 350, and 500um), and AzTEC (1.1mm) observations. We
obtained 30 rest-frame FUV-to-FIR spectral energy distributions (SEDs)
of LBGs at z∼3, and analyzed these with the CIGALE SED-fitting
analysis code. We were able to derive fully consistent physical
parameters, that is, M*, betaUV, LFUV, LIR, AFUV, star
formation rate, and the slope of the dust attenuation law; we built a
semiempirical library of 30 rest-frame FUV-to-FIR stacked LBG SEDs as
functions of LFUV, betaUV, and M*. Additionally, We used the
so-called IR-excess (IRX) to investigate the dust attenuation and the
shape of the dust attenuation curve as a function of LUV, betaUV
and M*.
Description:
Library of 30 rest-frame FUV-to-FIR stacked SEDs and templates of LBGs
at z∼3. For each stacked LBG, the library includes the stacked
photometry at optical (BVriz bands), near-infrared (YJHKs bands), IRAC
(3.6, 4.5, 5.6 and 8.0um), MIPS (24um), PACS (100 and 160um), SPIRE
(250, 350, and 500um), and AzTEC (1.1mm) observations, and the best
fitted template obtained with CIGALE.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 91 30 Sample binning
stacksed.dat 517 30 Photometry of the stacked LBGs SEDs
template.dat 738 3729 Templates of the stacked LBGs SEDs
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 I1 --- Samp [1/5] Sample (1)
3- 14 A12 --- ID ID of LBG template
17- 43 A27 --- Range Range (corresponding to function defined
in Sample)
45- 49 F5.2 [Lsun] log(LFUV) FUV luminosity mean value that define
the bin
51- 54 F4.2 [Lsun] e_log(LFUV) FUV luminosity error
56- 60 F5.2 [Msun] log(M*) Stellar mass mean value that define the bin
62- 65 F4.2 [Msun] e_log(M*) Stellar mass error
67- 71 F5.2 --- betaUV UV continuum slope, βUV, mean value
that define the bin
73- 76 F4.2 --- e_betaUV UV continuum slope error
78- 81 F4.2 --- z Redshift that define the bin
83- 86 F4.2 --- e_z Redshift error
88- 91 I4 --- Ngal Number of galaxies stacked
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Note (1): Samples as follows:
1 = Stacking as a function of LFUV (LBG-L)
2 = Stacking as a function of UV (LBG-)
3 = Stacking as a function of stellar mass (LBG-M)
4 = Stacking as a function of (UV, M) - LBG-M1
5 = Stacking as a function of (UV, M) - LBG-M2
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Byte-by-byte Description of file: stacksed.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- ID ID of LBG template, as defined in Table 1
14 I1 --- z [3] Redshift
16- 29 F14.12 mJy FB Flux in the Subaru B band
31- 44 F14.12 mJy e_FB Flux error in the Subaru B band
46- 59 F14.12 mJy FV Flux in the Subaru V band
61- 74 F14.12 mJy e_FV Flux error in the Subaru V band
76- 89 F14.12 mJy Fr Flux in the Subaru r band
91-104 F14.12 mJy e_Fr Flux error in the Subaru r band
106-119 F14.12 mJy Fi Flux in the Subaru i band
121-134 F14.12 mJy e_Fi Flux error in the Subaru i band
136-149 F14.12 mJy Fz Flux in the Subaru z band
151-164 F14.12 mJy e_Fz Flux error in the Subaru z band
166-179 F14.12 mJy FY Flux in the UltraVista Y band
181-194 F14.12 mJy e_FY Flux error in the UltraVista Y band
196-209 F14.12 mJy FJ Flux in the UltraVista J band
211-224 F14.12 mJy e_FJ Flux error in the UltraVista J band
226-239 F14.12 mJy FH Flux in the UltraVista H band
241-254 F14.12 mJy e_FH Flux error in the UltraVista H band
256-269 F14.12 mJy FKs Flux in the UltraVista Ks band
271-284 F14.12 mJy e_FKs Flux error in the UltraVista Ks band
286-299 F14.12 mJy F3.6 Flux in the IRAC 1 [3.6um] band
301-314 F14.12 mJy e_F3.6 Flux error in the IRAC 1 [3.6um] band
316-329 F14.12 mJy F4.5 Flux in the IRAC 2 [4.5um] band
331-344 F14.12 mJy e_F4.5 Flux error in the IRAC 2 [4.5um] band
346-359 F14.12 mJy F5.8 Flux in the IRAC 3 [5.8um] band
361-374 F14.12 mJy e_F5.8 Flux error in the IRAC 3 [5.8um] band
376-389 F14.12 mJy F8.0 Flux in the IRAC 4 [8.0um] band
391-404 F14.12 mJy e_F8.0 Flux error in the IRAC 4 [8.0um] band
406-419 F14.12 mJy F24 Flux in the MIPS 24um band
421-434 F14.12 mJy e_F24 Flux error in the MIPS 24um band
436-440 F5.3 mJy F100 ?=-99.999 Flux in the PACS green [100um] band
442-448 F7.3 mJy e_F100 ?=-99.999 Flux error in the
PACS green [100um] band
450-454 F5.3 mJy F160 ?=-99.999 Flux in the PACS red [160um] band
456-462 F7.3 mJy e_F160 ?=-99.999 Flux error in the PACS red [160um] band
464-469 F6.3 mJy F250 Flux in the SPIRE PSW [250um] band
471-475 F5.3 mJy e_F250 Flux error in the SPIRE PSW [250um] band
477-482 F6.3 mJy F350 Flux in the SPIRE PMW [350um]
484-488 F5.3 mJy e_F350 Flux error in the SPIRE PMW [350um] band
490-495 F6.3 mJy F500 Flux in the SPIRE PLW [500um]
497-501 F5.3 mJy e_F500 Flux error in the SPIRE PLW [500um]
503-509 F7.3 mJy F1.1mm ?=-99.999 Flux in the AzTEC 1.1mm band
511-517 F7.3 mJy e_F1.1mm ?=-99.999 Flux error in the AzTEC 1.1mm band
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Byte-by-byte Description of file: template.dat
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Bytes Format Units Label Explanations
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1- 18 E18.15 nm lambda Observed wavelength
20- 42 E23.19 mJy FLBG-L1 Flux of LBG-L1 template
44- 66 E23.19 mJy FLBG-L2 Flux of LBG-L2 template
68- 90 E23.19 mJy FLBG-L3 Flux of LBG-L3 template
92-114 E23.19 mJy FLBG-L4 Flux of LBG-L4 template
116-138 E23.19 mJy FLBG-M1 Flux of LBG-M1 template
140-162 E23.19 mJy FLBG-M2 Flux of LBG-M2 template
164-186 E23.19 mJy FLBG-M3 Flux of LBG-M3 template
188-210 E23.19 mJy FLBG-M4 Flux of LBG-M4 template
212-234 E23.19 mJy FLBG-M5 Flux of LBG-M5 template
236-258 E23.19 mJy FLBG-M6 Flux of LBG-M6 template
260-282 E23.19 mJy FLBG-b1 Flux of LBG-b1 template
284-306 E23.19 mJy FLBG-b2 Flux of LBG-b2 template
308-330 E23.19 mJy FLBG-b3 Flux of LBG-b3 template
332-354 E23.19 mJy FLBG-b4 Flux of LBG-b4 template
356-378 E23.19 mJy FLBG-Mb1-M0b0 Flux of LBG-Mb1-M0b0 template
380-402 E23.19 mJy FLBG-Mb1-M0b1 Flux of LBG-Mb1-M0b1 template
404-426 E23.19 mJy FLBG-Mb1-M0b2 Flux of LBG-Mb1-M0b2 template
428-450 E23.19 mJy FLBG-Mb1-M1b0 Flux of LBG-Mb1-M1b0 template
452-474 E23.19 mJy FLBG-Mb1-M1b1 Flux of LBG-Mb1-M1b1 template
476-498 E23.19 mJy FLBG-Mb1-M1b2 Flux of LBG-Mb1-M1b2 template
500-522 E23.19 mJy FLBG-Mb2-M0b0 Flux of LBG-Mb2-M0b0 template
524-546 E23.19 mJy FLBG-Mb2-M0b1 Flux of LBG-Mb2-M0b1 template
548-570 E23.19 mJy FLBG-Mb2-M1b0 Flux of LBG-Mb2-M1b0 template
572-594 E23.19 mJy FLBG-Mb2-M1b1 Flux of LBG-Mb2-M1b1 template
596-618 E23.19 mJy FLBG-Mb2-M2b0 Flux of LBG-Mb2-M2b0 template
620-642 E23.19 mJy FLBG-Mb2-M2b1 Flux of LBG-Mb2-M2b1 template
644-666 E23.19 mJy FLBG-Mb2-M3b0 Flux of LBG-Mb2-M3b0 template
668-690 E23.19 mJy FLBG-Mb2-M3b1 Flux of LBG-Mb2-M3b1 template
692-714 E23.19 mJy FLBG-Mb2-M4b0 Flux of LBG-Mb2-M4b0 template
716-738 E23.19 mJy FLBG-Mb2-M4b1 Flux of LBG-Mb2-M4b1 template
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Acknowledgements:
Javier Alvarez-Marquez,
(End) Patricia Vannier [CDS] 04-Sep-2019