J/A+A/633/A160 ALMA Frontier Fields Survey. V. (Carvajal+, 2020)
The ALMA Frontier Fields survey. V: ALMA Stacking of Lyman-Break Galaxies in
Abell 2744, Abell 370, Abell S1063, MACSJ0416.1-2403 and MACSJ1149.5+2223.
Carvajal R., Bauer F.E., Bouwens R.J., Oesch P.A., Gonzalez-Lopez J.,
Anguita T., Aravena M., Demarco R., Guaita L., Infante L., Kim S.,
Kneissl R., Koekemoer A.M., Messias H., Treister E., Villard E., Zitrin A.,
Troncoso P.
<Astron. Astrophys. 633, A160 (2020)>
=2020A&A...633A.160C 2020A&A...633A.160C (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, radio ; Interferometry ; Radio continuum
Keywords: galaxies: high-redshift - galaxies: clusters: general -
submillimetre: galaxies - gravitational lensing: strong
Abstract:
The Hubble Frontier Fields offer an exceptionally deep window into the
high-redshift universe, covering a substantially larger area than the
Hubble Ultra-Deep field at low magnification and probing 1-2mags
deeper in exceptional high-magnification regions. This unique
parameter space, coupled with the exceptional multi-wavelength
ancillary data, can facilitate for useful insights into distant galaxy
populations.
We aim to leverage Atacama Large Millimetre Array (ALMA) band 6
(∼263GHz) mosaics in the central portions of five Frontier Fields to
characterize the infrared (IR) properties of 1582 ultraviolet
(UV)-selected Lyman-Break Galaxies (LBGs) at redshifts of z∼2-8. We
investigated individual and stacked fluxes and IR excess (IRX) values
of the LBG sample as functions of stellar mass (M_star), redshift, UV
luminosity and slope β, and lensing magnification.
LBG samples were derived from color-selection and photometric redshift
estimation with Hubble Space Telescope photometry. Spectral energy
distributions (SED)-templates were fit to obtain luminosities, stellar
masses, and star formation rates for the LBG candidates. We obtained
individual IR flux and IRX estimates, as well as stacked averages,
using both ALMA images and u-v visibilities.
Two (2) LBG candidates were individually detected above a significance
of 4.1-sigma, while stacked samples of the remaining LBG candidates
yielded no significant detections. We investigated our detections and
upper limits in the context of the IRX-M_star and IRX-β
relations, probing at least one dex lower in stellar mass than past
studies have done. Our upper limits exclude substantial portions of
parameter space and they are sufficiently deep in a handful of cases
to create mild tension with the typically assumed attenuation and
consensus relations. We observe a clear and smooth trend between
M* and β, which extends to low masses and blue (low) β
values, consistent with expectations from previous works.
Description:
Tables present the individual properties of 1580 UV-selected
Lyman-Break Galaxy (LBG) candidates and two detected LBGs behind the
five Frontier Fields Abell 2744, Abell 370, Abell S1063,
MACSJ0416.1-2403, and MACSJ1149.5+2223.
Observations have been obtained from Hubble Space Telescope and from
Atacama Large Millimetre Array (ALMA).
Properties from ALMA observations (Flux, LIR, and S/N) are shown as
3-sigma upper limits. Most of the values and errors include
corrections for magnification factors.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablec1.dat 359 1582 HST photometry
tablec2.dat 60 1582 ALMA properties
tablec3.dat 79 1582 UV-slope, magnification and distance
tablec4.dat 61 1582 Properties from FAST++ and graybody
tablec5.dat 69 1582 HST photometry and graybody luminosities
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Byte-by-byte Description of file: tablec1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ID Source ID
6- 7 I2 h RAh Drop-out Right ascension (J2000) (1)
9- 10 I2 min RAm Drop-out Right ascension (J2000)
12- 16 F5.2 s RAs Drop-out Right ascension (J2000)
18 A1 --- DE- Drop-out Declination sign (J2000) (1)
19- 20 I2 deg DEd Drop-out Declination (J2000)
22- 23 I2 arcmin DEm Drop-out Declination (J2000)
25- 29 F5.2 arcsec DEs Drop-out Declination (J2000)
31- 34 F4.2 --- zph Photometric redshift
36- 39 F4.2 --- b_zph Lower 1-sigma (68%) limit in zph
41- 44 F4.2 --- B_zph Upper 1-sigma (68%) limit in zph
46- 53 F8.2 uJy F275W ?=-3000 HST F275W flux (2)
55- 66 F12.4 uJy E_F275W ?=-3000 HST F275W flux 1-sigma (68%)
positive error (3)
68- 79 F12.4 uJy e_F275W ?=-3000 HST F275W flux 1-sigma (68%)
negative error (3)
81- 88 F8.2 uJy F336W ?=-3000 HST F336W flux (2)
90-101 F12.4 uJy E_F336W ?=-3000 HST F336W flux 1-sigma (68%)
positive error (3)
103-114 F12.4 uJy e_F336W ?=-3000 HST F336W flux 1-sigma (68%)
negative error (3)
116-123 F8.2 uJy F435W ?=-3000 HST F435W flux (2)
125-136 F12.4 uJy E_F435W ?=-3000 HST F435W flux 1-sigma (68%)
positive error (3)
138-149 F12.4 uJy e_F435W ?=-3000 HST F435W flux 1-sigma (68%)
negative error (3)
151-158 F8.2 uJy F606W ?=-3000 HST F606W flux (2)
160-171 F12.4 uJy E_F606W ?=-3000 HST F606W flux 1-sigma (68%)
positive error (3)
173-184 F12.4 uJy e_F606W ?=-3000 HST F606W flux 1-sigma (68%)
negative error (3)
186-193 F8.2 uJy F814W ?=-3000 HST F814W flux (2)
195-206 F12.4 uJy E_F814W ?=-3000 HST F814W flux 1-sigma (68%)
positive error (3)
208-219 F12.4 uJy e_F814W ?=-3000 HST F814W flux 1-sigma (68%)
negative error (3)
221-228 F8.2 uJy F105W ?=-3000 HST F105W flux (2)
230-241 F12.4 uJy E_F105W ?=-3000 HST F105W flux 1-sigma (68%)
positive error (3)
243-254 F12.4 uJy e_F105W ?=-3000 HST F105W flux 1-sigma (68%)
negative error (3)
256-263 F8.2 uJy F125W ?=-3000 HST F125W flux (2)
265-276 F12.4 uJy E_F125W ?=-3000 HST F125W flux 1-sigma (68%)
positive error (3)
278-289 F12.4 uJy e_F125W ?=-3000 HST F125W flux 1-sigma (68%)
negative error (3)
291-298 F8.2 uJy F140W ?=-3000 HST F140W flux (2)
300-311 F12.4 uJy E_F140W ?=-3000 HST F140W flux 1-sigma (68%)
positive error (3)
313-324 F12.4 uJy e_F140W ?=-3000 HST F140W flux 1-sigma (68%)
negative error (3)
326-333 F8.2 uJy F160W ?=-3000 HST F160W flux (2)
335-346 F12.4 uJy E_F160W ?=-3000 HST F160W flux 1-sigma (68%)
positive error (3)
348-359 F12.4 uJy e_F160W ?=-3000 HST F160W flux 1-sigma (68%)
negative error (3)
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Note (1): Drop out position from HST images.
Note (2): A value of -3000 implies no detection with that filter.
Note (3): Error values for fluxes derived from errors in photometry and
magnification factors combined.
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Byte-by-byte Description of file: tablec2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ID Source ID
6- 7 I2 h RAh ALMA Right ascension (J2000) (1)
9- 10 I2 min RAm ALMA Right ascension (J2000)
12- 16 F5.2 s RAs ALMA Right ascension (J2000)
18 A1 --- DE- ALMA Declination sign (J2000) (1)
19- 20 I2 deg DEd ALMA Declination (J2000)
22- 23 I2 arcmin DEm ALMA Declination (J2000)
25- 29 F5.2 arcsec DEs ALMA Declination (J2000)
31- 36 A6 --- Cluster Candidate home cluster
38- 41 I4 uJy Fpeak ALMA peak 1mm flux (pb-corrected)
43- 45 I3 uJy rmspeak ALMA peak 1mm rms (pb-corrected) (2)
47- 49 I3 uJy B_Fpeak Upper 3-sigma limit in Fpeak
51- 55 F5.2 --- S/N Peak 1mm signal to noise ratio
57- 60 F4.2 --- pbcor Peak primary beam correction factor
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Note (1): Position of the ALMA peak of each LBG candidate.
Note (2): Error represented by the individual rms value at each position.
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Byte-by-byte Description of file: tablec3.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ID Source ID
6- 11 F6.2 --- beta UV-slope
13- 17 F5.2 --- b_beta Lower 1-sigma (68%) limit in beta
19- 23 F5.2 --- B_beta Upper 1-sigma (68%) limit in beta
25- 32 F8.2 --- magnif Magnification factor (1)
34- 40 F7.2 --- b_magnif Lower 1-sigma (68%) limit in magnif (2)
42- 50 F9.2 --- B_magnif Upper 1-sigma (68%) limit in magnif (2)
52- 58 F7.2 --- e_magnif Magnification factor standard deviation (3)
60- 65 I6 Mpc Dl Luminosity distance (4)
67- 72 I6 Mpc b_Dl Lower 1-sigma (68%) limit in Dl
74- 79 I6 Mpc B_Dl Upper 1-sigma (68%) limit in Dl
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Note (1): Magnification factors following Coe et al. (2015ApJ...800...84C 2015ApJ...800...84C)
without capping.
Note (2): Magnfication error values obtained from evaluating the limits of the
1-sigma confidence intervals of the photometric redshift values.
Note (3): Second error value corresponds to systematic uncertainties from
different magnification models.
Note (4): Luminosity distances after Wright (2006PASP..118.1711W 2006PASP..118.1711W).
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Byte-by-byte Description of file: tablec4.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ID Source ID
6- 12 F7.2 [Msun] log(M*) Log of stellar mass (1)
14- 18 F5.2 [Msun] b_log(M*) Lower 1-sigma (68%) limit in log(M*) (1)
20- 25 F6.2 [Msun] B_log(M*) Upper 1-sigma (68%) limit in log(M*) (1)
27- 31 F5.2 [Msun/yr] log(SFR) Log of star formation rate (1)
33- 37 F5.2 [Msun/yr] b_log(SFR) Lower 1-sigma (68%) limit in log(SFR) (1)
39- 43 F5.2 [Msun/yr] B_log(SFR) Upper 1-sigma (68%) limit in log(SFR) (1)
45- 49 F5.2 [1/yr] log(sSFR) Log of specific star formation rate
51- 55 F5.2 [1/yr] b_log(sSFR) Lower 1-sigma (68%) limit in log(sSFR)
57- 61 F5.2 [1/yr] B_log(sSFR) Upper 1-sigma (68%) limit in log(sSFR)
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Note (1): Magnification-corrected values.
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Byte-by-byte Description of file: tablec5.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ID Source ID
6- 12 F7.2 [Lsun] log(LUV) Log of ultraviolet luminosity
14- 19 F6.2 [Lsun] b_log(LUV) Lower 1-sigma (68%) limit in log(LUV)
21- 26 F6.2 [Lsun] B_log(LUV) Upper 1-sigma (68%) limit in log(LUV)
28- 33 F6.2 [Lsun] B_log(LIR) ? Upper 3-sigma limit in log of
infrared luminosity
35- 39 F5.2 [---] B_log(LIR/LUV) ? Upper 3-sigma limit in log of LIR/LUV
41- 47 F7.2 [uJy] log(FUV) Log of ultraviolet flux density
49- 55 F7.2 [uJy] b_log(FUV) Upper 1-sigma (68%) limit in log(FUV)
57- 63 F7.2 [uJy] B_log(FUV) Lower 1-sigma (68%) limit in log(FUV)
65- 69 F5.2 [uJy] B_log(FIR) ? Upper 3-sigma limit in log of
infrared flux
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Acknowledgements:
Rodrigo Carvajal, rcarvaja(at)astro.puc.cl
References:
Gonzalez-Lopez et al., Paper I 2017A&A...597A..41G 2017A&A...597A..41G
Laporte et al., Paper II 2017A&A...604A.132L 2017A&A...604A.132L
Gonzalez-Lopez et al., Paper III 2017A&A...608A.138G 2017A&A...608A.138G
Munoz Arancibia et al., Paper IV 2018A&A...620A.125M 2018A&A...620A.125M
(End) Rodrigo Carvajal [PUC], Patricia Vannier [CDS] 22-Dec-2019