2019A&A...628A...3D


Query : 2019A&A...628A...3D

2019A&A...628A...3D - Astronomy and Astrophysics, volume 628A, 3-3 (2019/8-1)

Faint end of the z ∼ 3-7 luminosity function of Lyman-alpha emitters behind lensing clusters observed with MUSE.

DE LA VIEUVILLE G., BINA D., PELLO R., MAHLER G., RICHARD J., DRAKE A.B., HERENZ E.C., BAUER F.E., CLEMENT B., LAGATTUTA D., LAPORTE N., MARTINEZ J., PATRICIO V., WISOTZKI L., ZABL J., BOUWENS R.J., CONTINI T., GAREL T., GUIDERDONI B., MARINO R.A., MASEDA M.V., MATTHEE J., SCHAYE J. and SOUCAIL G.

Abstract (from CDS):

Contact. This paper presents the results obtained with the Multi-Unit Spectroscopic Explorer (MUSE) at the ESO Very Large Telescope on the faint end of the Lyman-alpha luminosity function (LF) based on deep observations of four lensing clusters. The goal of our project is to set strong constraints on the relative contribution of the Lyman-alpha emitter (LAE) population to cosmic reionization.
Aims. The precise aim of the present study is to further constrain the abundance of LAEs by taking advantage of the magnification provided by lensing clusters to build a blindly selected sample of galaxies which is less biased than current blank field samples in redshift and luminosity. By construction, this sample of LAEs is complementary to those built from deep blank fields, whether observed by MUSE or by other facilities, and makes it possible to determine the shape of the LF at fainter levels, as well as its evolution with redshift.
Methods. We selected a sample of 156 LAEs with redshifts between 2.9≤z≤6.7 and magnification-corrected luminosities in the range 39≤logLLyα[erg/s]≤43. To properly take into account the individual differences in detection conditions between the LAEs when computing the LF, including lensing configurations, and spatial and spectral morphologies, the non-parametric 1/Vmax method was adopted. The price to pay to benefit from magnification is a reduction of the effective volume of the survey, together with a more complex analysis procedure to properly determine the effective volume Vmax for each galaxy. In this paper we present a complete procedure for the determination of the LF based on IFU detections in lensing clusters. This procedure, including some new methods for masking, effective volume integration and (individual) completeness determinations, has been fully automated when possible, and it can be easily generalized to the analysis of IFU observations in blank fields. Results. As a result of this analysis, the Lyman-alpha LF has been obtained in four different redshift bins: 2.9<z<6, 7, 2.9<z<4.0, 4.0<z<5.0, and 5.0<z<6.7 with constraints down to log LLyα=40.5. From our data only, no significant evolution of LF mean slope can be found. When performing a Schechter analysis also including data from the literature to complete the present sample towards the brightest luminosities, a steep faint end slope was measured varying from α=-1.69–0.08+0.08 to α=-1.87–0.12+0.12 between the lowest and the highest redshift bins.Conclusions. The contribution of the LAE population to the star formation rate density at z∼6 is ≤50% depending on the luminosity limit considered, which is of the same order as the Lyman-break galaxy (LBG) contribution. The evolution of the LAE contribution with redshift depends on the assumed escape fraction of Lyman-alpha photons, and appears to slightly increase with increasing redshift when this fraction is conservatively set to one. Depending on the intersection between the LAE/LBG populations, the contribution of the observed galaxies to the ionizing flux may suffice to keep the universe ionized at z∼6.

Abstract Copyright: © G. de La Vieuville et al. 2019

Journal keyword(s): gravitational lensing: strong - galaxies: high-redshift - dark ages, reionization, first stars - galaxies: clusters: general - galaxies: luminosity function, mass function

VizieR on-line data: <Available at CDS (J/A+A/628/A3): tablee1.dat list.dat fits/*>

Nomenclature: Table E.1: [DBP2019] ANNNN NNN N=11 among (Nos A2390 71-A2390 243, A2667 24-A2667 62), [DBP2019] A2390 L1 N=1.

Simbad objects: 157

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Number of rows : 157
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 [MAC2016] A2744cl 515 EmG 00 14 16.050 -30 24 28.80     29.2906   29.4147 ~ 5 0
2 [MAC2016] A2744cl 20895 EmG 00 14 16.212 -30 24 21.89   29.9051 29.3130   28.7953 ~ 5 0
3 [MAC2016] A2744cl 659 EmG 00 14 16.214 -30 24 22.58     28.8553   27.8687 ~ 5 0
4 [MRC2018] A2744 2785 EmG 00 14 16.2316 -30 24 42.736     29.5461   28.8554 ~ 3 0
5 [MAC2016] A2744cl 557 EmG 00 14 16.265 -30 24 26.39     28.8768   28.2119 ~ 5 0
6 [LBL2018] A2744 cluster 23 EmG 00 14 16.348 -30 24 34.94         28.7595 ~ 6 0
7 [MRC2018] A2744 M10 EmG 00 14 16.3654 -30 24 00.147           ~ 2 0
8 [MAC2016] A2744cl 1144 EmG 00 14 16.372 -30 24 01.32   29.2367 27.3973   26.5497 ~ 5 0
9 [MAC2016] A2744cl 341 EmG 00 14 16.378 -30 24 39.49   29.7293 28.6687   28.2161 ~ 5 0
10 [MAC2016] A2744cl 782 EmG 00 14 16.397 -30 24 16.52     29.4691   28.1842 ~ 5 0
11 [MAC2016] A2744cl 348 EmG 00 14 16.411 -30 24 39.29   29.2892 28.1266   28.2213 ~ 5 0
12 [MRC2018] A2744 M35 EmG 00 14 16.4563 -30 23 56.675           ~ 2 0
13 [MRC2018] A2744 6876 EmG 00 14 16.47272 -30 23 57.7918           ~ 2 0
14 [MAC2016] A2744cl 436 EmG 00 14 16.630 -30 24 34.65   28.2562 26.3394   26.1861 ~ 5 0
15 [MAC2016] A2744cl 488 EmG 00 14 16.646 -30 24 31.34     27.7721   27.5089 ~ 5 0
16 [MRC2018] A2744 3472 EmG 00 14 16.7277 -30 24 32.600         29.7545 ~ 3 0
17 [MAC2016] A2744cl 21278 EmG 00 14 16.828 -30 24 06.66         29.6152 ~ 5 0
18 [MAC2016] A2744cl 1856 EmG 00 14 16.878 -30 23 18.92     29.0031   28.1958 ~ 5 0
19 [MAC2016] A2744cl 20842 EmG 00 14 16.903 -30 24 23.54         28.4641 ~ 5 0
20 [MRC2018] A2744 M30 EmG 00 14 17.0705 -30 23 34.621           ~ 3 0
21 [MRC2018] A2744 6505 EmG 00 14 17.1320 -30 24 00.478     29.8951   29.2434 ~ 3 0
22 [MRC2018] A2744 7721 EmG 00 14 17.1430 -30 23 49.019   25.3539 24.7415   24.7220 ~ 4 0
23 [MAC2016] A2744cl 1843 EmG 00 14 17.150 -30 23 19.80   29.2460 29.0246   27.6264 ~ 5 0
24 [MRC2018] A2744 3210 EmG 00 14 17.1969 -30 24 36.045         29.3379 ~ 3 0
25 [MAC2016] A2744cl 1794 EmG 00 14 17.4408 -30 23 23.117         28.2970 ~ 5 0
26 [MAC2016] A2744cl 1520 EmG 00 14 17.466 -30 23 40.57   27.1176 26.3976   26.3182 ~ 5 0
27 [MRC2018] A2744 M12 EmG 00 14 17.5292 -30 24 06.198           ~ 3 0
28 [MAC2016] A2744cl 922 EmG 00 14 17.580 -30 24 10.73   30.1131 27.2427   26.8001 ~ 5 0
29 [MRC2018] A2744 3837 EmG 00 14 17.7736 -30 24 27.698         27.8099 ~ 3 0
30 [MRC2018] A2744 2674 EmG 00 14 17.8449 -30 24 45.112         27.8906 ~ 4 0
31 [MRC2018] A2744 3492 EmG 00 14 17.8674 -30 24 32.055         29.0082 ~ 3 0
32 [MAC2016] A2744cl 1854 EmG 00 14 17.879 -30 23 19.60     28.2167   26.9284 ~ 5 0
33 [MRC2018] A2744 11559 EmG 00 14 17.8912 -30 23 06.880         29.4777 ~ 3 0
34 [MRC2018] A2744 7858 EmG 00 14 17.9973 -30 23 48.469   26.1023 25.4387   25.3520 ~ 4 0
35 [MRC2018] A2744 M34 EmG 00 14 18.0132 -30 22 50.490           ~ 3 0
36 [MRC2018] A2744 M19 EmG 00 14 18.0342 -30 24 34.889           ~ 3 0
37 [MRC2018] A2744 4010 EmG 00 14 18.0449 -30 24 26.471   29.4143 28.1838   28.5886 ~ 3 0
38 [MRC2018] A2744 M18 EmG 00 14 18.1078 -30 24 39.872           ~ 3 0
39 [MAC2016] A2744cl 22461 EmG 00 14 18.2031 -30 23 21.445     30.1103   29.7226 ~ 5 0
40 [MRC2018] A2744 M16 EmG 00 14 18.3114 -30 23 56.356           ~ 4 0
41 [MRC2018] A2744 M41 EmG 00 14 18.3762 -30 24 00.425           ~ 3 0
42 [MAC2016] A2744cl 2289 EmG 00 14 18.558 -30 22 54.84     28.8638   28.8687 ~ 5 0
43 [MAC2016] A2744cl 23452 EmG 00 14 18.654 -30 24 35.23     29.8659   29.2787 ~ 5 0
44 [MRC2018] A2744 M36 EmG 00 14 18.7325 -30 24 47.376           ~ 3 0
45 [MAC2016] A2744cl 331 EmG 00 14 18.796 -30 24 40.75   28.5843 26.1778   25.4958 ~ 6 0
46 [MAC2016] A2744cl 2206 EmG 00 14 18.804 -30 22 59.52   28.8644 29.0911   28.5981 ~ 5 0
47 [MRC2018] A2744 M38 EmG 00 14 19.2354 -30 24 28.452           ~ 3 0
48 [MRC2018] A2744 2874 EmG 00 14 19.2568 -30 24 40.875     29.5291   29.1902 ~ 4 0
49 [MRC2018] A2744 M32 EmG 00 14 19.2617 -30 24 20.970           ~ 3 0
50 [MAC2016] A2744cl 2579 EmG 00 14 19.460 -30 23 20.77   29.6982 28.2574   28.4697 ~ 5 0
51 [MRC2018] A2744 64.1 EmG 00 14 19.4872 -30 23 55.349           ~ 3 0
52 [MRC2018] A2744 M11 EmG 00 14 19.6748 -30 24 30.010           ~ 3 0
53 [MRC2018] A2744 M25 EmG 00 14 19.7271 -30 23 27.310           ~ 3 0
54 [BIO2017] A2744I-4197324257 EmG 00 14 19.731 -30 24 25.69         29.4503 ~ 7 0
55 [MRC2018] A2744 2407 EmG 00 14 19.7435 -30 24 49.479     28.6064   28.6467 ~ 3 0
56 [MAC2016] A2744cl 1908 EmG 00 14 19.765 -30 23 15.63     28.2566   26.6955 ~ 5 0
57 [MRC2018] A2744 M9 EmG 00 14 19.7673 -30 23 52.402           ~ 2 0
58 [MRC2018] A2744 M37 EmG 00 14 19.9345 -30 24 42.789           ~ 3 0
59 [IKO2015] 7.1 EmG 00 14 20.020 -30 23 31.45   28.4137 27.1387   26.8924 ~ 9 0
60 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 749 0
61 [MRC2018] A2744 M28 EmG 00 14 20.0466 -30 22 52.731           ~ 3 0
62 [ARK2014] 1291 EmG 00 14 20.259 -30 24 12.19         26.0739 ~ 7 0
63 [MAC2016] A2744cl 2032 EmG 00 14 20.524 -30 23 09.15   28.2360 27.7328   27.5019 ~ 5 0
64 [KIS2018] A2744 31.1 EmG 00 14 20.627 -30 24 11.35         28.1734 ~ 7 0
65 [MAC2016] A2744cl 22977 EmG 00 14 20.795 -30 22 56.91   29.8926     28.9683 ~ 5 0
66 [MAC2016] A2744cl 1855 EmG 00 14 20.911 -30 23 19.62     26.5955   25.7865 ~ 5 0
67 [MRC2018] A2744 M13 EmG 00 14 20.9439 -30 23 07.785           ~ 3 0
68 [KIS2018] A2744 22.1 EmG 00 14 21.098 -30 24 41.82         27.8947 ~ 7 0
69 [MAC2016] A2744cl 1738 EmG 00 14 21.303 -30 23 26.89     27.6082   27.4985 ~ 6 0
70 [MRC2018] A2744 M39 EmG 00 14 21.3383 -30 22 55.701           ~ 2 0
71 [MRC2018] A2744 2754 EmG 00 14 21.4151 -30 24 42.569         29.5308 ~ 3 0
72 [KIS2018] A2744 47.1 EmG 00 14 21.6421 -30 23 31.848     29.2250   28.4776 ~ 4 0
73 [KIS2018] A2744 26.2 EmG 00 14 21.6838 -30 24 38.149           ~ 5 0
74 [BIO2017] A2744I-4217623440 EmG 00 14 21.780 -30 23 44.02     28.5132   25.1852 ~ 12 0
75 [MRC2018] A2744 M33 EmG 00 14 21.8662 -30 23 56.308           ~ 3 0
76 [MRC2018] A2744 62.1 EmG 00 14 21.918 -30 23 55.11           ~ 3 0
77 [MRC2018] A2744 M31 EmG 00 14 22.0457 -30 23 21.333           ~ 3 0
78 [MRC2018] A2744 M27 EmG 00 14 22.0788 -30 24 50.530           ~ 3 0
79 [MRC2018] A2744 10544 EmG 00 14 22.2093 -30 23 15.538         30.3989 ~ 3 0
80 [IKO2015] 6.5 EmG 00 14 22.460 -30 24 18.38   26.4902 24.7359   24.5525 ~ 9 0
81 [MRC2018] A2744 11033 EmG 00 14 22.4811 -30 22 59.395   27.0287 25.8794   25.4861 ~ 3 0
82 [ARK2014] 93 EmG 00 14 22.5135 -30 24 55.598         29.4057 ~ 14 0
83 [KIS2018] A2744 26.1 EmG 00 14 22.5313 -30 24 35.003   28.1985 27.3479   27.5765 ~ 5 0
84 [LBL2018] A2744 cluster 3 EmG 00 14 22.654 -30 23 08.90         27.8718 ~ 6 0
85 [LBL2018] A2744 cluster 9 EmG 00 14 22.745 -30 23 04.02         28.1821 ~ 6 0
86 [KIS2018] A2744 61.2 EmG 00 14 22.8325 -30 24 16.120   28.5475 28.3686   28.4244 ~ 4 0
87 [LBL2018] A2744 cluster 11 EmG 00 14 22.905 -30 23 12.52     28.9261   26.1025 ~ 7 0
88 [MRC2018] A2744 M17 EmG 00 14 22.9087 -30 23 10.614           ~ 3 0
89 [MAC2016] A2744cl 1968 EmG 00 14 22.969 -30 23 12.45         27.2071 ~ 6 0
90 [MAC2016] A2744cl 20033 EmG 00 14 23.004 -30 24 59.43     29.4327   29.3113 ~ 5 0
91 [MRC2018] A2744 11772 EmG 00 14 23.0218 -30 23 11.032     29.5757   28.9452 ~ 3 0
92 [MAC2016] A2744cl 1959 EmG 00 14 23.061 -30 23 13.62   27.4153 26.1385   25.9067 ~ 6 0
93 [MAC2016] A2744cl 22837 EmG 00 14 23.103 -30 23 04.00         29.5268 ~ 5 0
94 [KIS2018] A2744 42.1 EmG 00 14 23.3551 -30 24 02.189     28.3093   28.1526 ~ 4 0
95 [MAC2016] A2744cl 1675 EmG 00 14 23.510 -30 23 31.30         27.9949 ~ 5 0
96 [MRC2018] A2744 10609 EmG 00 14 23.6206 -30 23 14.277     30.1290   29.6988 ~ 2 0
97 [MRC2018] A2744 2264 EmG 00 14 23.7160 -30 24 52.551         29.3486 ~ 4 0
98 [MRC2018] A2744 M29 EmG 00 14 23.9874 -30 23 01.512           ~ 2 0
99 [MAC2016] A2744cl 1969 EmG 00 14 24.081 -30 23 12.36   29.9485 28.7699   29.0635 ~ 5 0
100 [MAC2016] A2744cl 1336 EmG 00 14 24.113 -30 23 47.92   28.7553 27.0583   26.7851 ~ 5 0
101 [MAC2016] A2744cl 255 EmG 00 14 24.138 -30 24 43.88     27.4387   27.4402 ~ 5 0
102 [MRC2018] A2744 9683 EmG 00 14 24.1718 -30 23 26.628           ~ 3 0
103 [MAC2016] A2744cl 21179 EmG 00 14 24.220 -30 24 10.55     28.6559   28.2773 ~ 5 0
104 [ARK2014] 1266 EmG 00 14 24.2569 -30 24 14.375         29.0818 ~ 14 0
105 [MRC2018] A2744 M23 EmG 00 14 24.3259 -30 23 19.279           ~ 3 0
106 [MRC2018] A2744 M15 EmG 00 14 24.3511 -30 23 02.978           ~ 2 0
107 [MAC2016] A2744cl 1950 EmG 00 14 24.370 -30 23 14.60   27.6635 25.8790   25.4272 ~ 6 0
108 [MRC2018] A2744 M26 EmG 00 14 24.3819 -30 24 45.705           ~ 3 0
109 [MAC2016] A2744cl 786 EmG 00 14 24.456 -30 24 18.02     26.0153   25.3926 ~ 6 0
110 [MAC2016] A2744cl 64 EmG 00 14 24.482 -30 24 56.64     28.1311   27.1064 ~ 6 0
111 [MAC2016] A2744cl 1616 EmG 00 14 24.530 -30 23 34.15     28.7006   28.0432 ~ 5 0
112 [MAC2016] A2744cl 22330 EmG 00 14 24.599 -30 23 27.16     28.6688   28.6534 ~ 5 0
113 [MAC2016] A2744cl 65 EmG 00 14 24.760 -30 24 56.59   29.2370 26.9956   26.3020 ~ 5 0
114 [MRC2018] A2744 5574 EmG 00 14 24.7950 -30 24 11.271     29.3814   28.5398 ~ 4 0
115 [MRC2018] A2744 M14 EmG 00 14 24.9145 -30 24 02.871           ~ 3 0
116 [MAC2016] A2744cl 529 EmG 00 14 24.992 -30 24 27.76   28.8401 27.5650   27.6885 ~ 5 0
117 [MAC2016] A2744cl 1941 EmG 00 14 25.021 -30 23 14.10     28.7142   27.7200 ~ 5 0
118 [MRC2018] A2744 4933 EmG 00 14 25.0977 -30 24 17.246     28.2824   28.4051 ~ 3 0
119 [MRC2018] A2744 9272 EmG 00 14 25.1158 -30 23 32.036   29.4875 28.5016   28.2029 ~ 4 0
120 [MAC2016] A2744cl 1480 EmG 00 14 25.131 -30 23 42.22     28.8001   28.2687 ~ 5 0
121 [MRC2018] A2744 7747 EmG 00 14 25.3044 -30 23 47.746         28.9352 ~ 4 0
122 [MRC2018] A2744 M40 EmG 00 14 25.3527 -30 23 06.788           ~ 3 0
123 [MRC2018] A2744 8116 EmG 00 14 25.4995 -30 23 44.092         29.0523 ~ 4 0
124 [MRC2018] A2744 8885 EmG 00 14 25.5991 -30 23 35.790         29.9356 ~ 3 0
125 [MAC2016] A2744cl 22763 EmG 00 14 25.646 -30 23 08.07   28.4114 28.3295   28.6749 ~ 5 0
126 [MAC2016] A2744cl 1863 EmG 00 14 25.785 -30 23 18.56   28.7809 27.7271   28.0730 ~ 6 0
127 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1599 0
128 [BPR2016] A1689 LN25 EmG 13 11 28.658 -01 20 54.59           ~ 2 0
129 [BPR2016] A1689 LN10 EmG 13 11 28.887 -01 20 51.63           ~ 2 0
130 [BPR2016] A1689 LN26 EmG 13 11 28.899 -01 21 08.57           ~ 2 0
131 [BPR2016] A1689 LN17 EmG 13 11 28.999 -01 21 07.27           ~ 2 0
132 [BPR2016] A1689 LN13 EmG 13 11 29.067 -01 20 57.49           ~ 2 0
133 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1108 0
134 [BBC2005] 2.4 EmG 13 11 29.812 -01 21 06.05           ~ 10 0
135 [BPR2016] A1689 LN9 EmG 13 11 30.190 -01 20 57.56           ~ 2 0
136 [BPR2016] A1689 LN19 EmG 13 11 30.257 -01 21 00.71           ~ 2 0
137 [BPR2016] A1689 LN15 EmG 13 11 30.350 -01 21 07.79           ~ 2 0
138 [BPR2016] A1689 1379 EmG 13 11 30.713 -01 20 12.53           ~ 2 0
139 [BPR2016] A1689 835 EmG 13 11 30.720 -01 20 53.12           ~ 2 0
140 [BPR2016] A1689 LN14 EmG 13 11 31.008 -01 20 14.25           ~ 2 0
141 [BPR2016] A1689 1404 EmG 13 11 31.142 -01 20 12.05           ~ 2 0
142 [BPR2016] A1689 LN18 EmG 13 11 31.416 -01 20 45.31           ~ 2 0
143 [BPR2016] A1689 1028 EmG 13 11 31.582 -01 20 39.31           ~ 2 0
144 [DBP2019] A2390 L1 EmG 21 53 33.790 +17 42 05.94           ~ 1 0
145 [DBP2019] A2390 134 EmG 21 53 33.845 +17 41 51.21           ~ 1 0
146 [DBP2019] A2390 96 EmG 21 53 35.124 +17 41 34.63           ~ 1 0
147 [DBP2019] A2390 71 EmG 21 53 36.012 +17 41 21.20           ~ 1 0
148 [DBP2019] A2390 243 EmG 21 53 37.322 +17 41 56.23           ~ 1 0
149 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 676 2
150 [DBP2019] A2667 62 EmG 23 51 37.445 -26 05 30.73           ~ 1 0
151 [DBP2019] A2667 25 EmG 23 51 37.451 -26 04 41.35           ~ 1 0
152 [DBP2019] A2667 41 EmG 23 51 37.513 -26 04 42.85           ~ 1 0
153 [DBP2019] A2667 33 EmG 23 51 38.618 -26 04 50.65           ~ 1 0
154 ACO 2667 ClG 23 51 39.37 -26 05 02.7           ~ 171 0
155 [DBP2019] A2667 24 EmG 23 51 40.154 -26 04 57.78           ~ 1 0
156 [DBP2019] A2667 38 EmG 23 51 40.673 -26 04 57.43           ~ 1 0
157 [DBP2019] A2667 30 EmG 23 51 40.943 -26 04 45.08           ~ 1 0

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2023.09.23-05:16:29

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