2013ApJ...768..196S

Query : 2013ApJ...768..196S

2013ApJ...768..196S - Astrophys. J., 768, 196 (2013/May-2)

The UV luminosity function of star-forming galaxies via dropout selection at redshifts z ∼ 7 and 8 from the 2012 ultra deep field campaign.

SCHENKER M.A., ROBERTSON B.E., ELLIS R.S., ONO Y., McLURE R.J., DUNLOP J.S., KOEKEMOER A., BOWLER R.A.A., OUCHI M., CURTIS-LAKE E., ROGERS A.B., SCHNEIDER E., CHARLOT S., STARK D.P., FURLANETTO S.R. and CIRASUOLO M.

Abstract (from CDS):

We present a catalog of high-redshift star-forming galaxies selected to lie within the redshift range z ≃ 7-8 using the Ultra Deep Field 2012 (UDF12), the deepest near-infrared (near-IR) exposures yet taken with the Hubble Space Telescope (HST). As a result of the increased near-IR exposure time compared to previous HST imaging in this field, we probe ∼0.65 (0.25) mag fainter in absolute UV magnitude, at z ∼ 7 (8), which increases confidence in a measurement of the faint end slope of the galaxy luminosity function. Through a 0.7 mag deeper limit in the key F105W filter that encompasses or lies just longward of the Lyman break, we also achieve a much-refined color-color selection that balances high redshift completeness and a low expected contamination fraction. We improve the number of dropout-selected UDF sources to 47 at z ∼ 7 and 27 at z ∼ 8. Incorporating brighter archival and ground-based samples, we measure the z ≃ 7 UV luminosity function to an absolute magnitude limit of MUV= -17 and find a faint end Schechter slope of α = -1.87–0.17+0.21. Using a similar color-color selection at z ≃ 8 that takes our newly added imaging in the F140W filter into account, and incorporating archival data from the HIPPIES and BoRG campaigns, we provide a robust estimate of the faint end slope at z ≃ 8, α = -1.94–0.24+0.21. We briefly discuss our results in the context of earlier work and that derived using the same UDF12 data but with an independent photometric redshift technique.

Abstract Copyright: ∼

Journal keyword(s): dark ages, reionization, first stars - galaxies: evolution - galaxies: formation

Nomenclature: Tables 2-3: [SRE2013] UDF12-SSss-MSSs N=46+27.

Simbad objects: 74

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Number of rows : 74
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME GOODS Southern Field reg 03 32 28.0 -27 48 30           ~ 1623 1
2 JADES-GS+053.13806-27.78186 EmG 03 32 33.128 -27 46 54.41           ~ 16 0
3 [BIO2011] UDFz-34026504 G 03 32 34.021 -27 46 50.43           ~ 6 0
4 [BIO2011] UDFz-34566493 G 03 32 34.567 -27 46 49.30   31.3731       ~ 8 0
5 JADES-GS+053.14430-27.77986 G 03 32 34.628 -27 46 47.21           ~ 9 0
6 [BIO2011] UDFy-35517443 G 03 32 35.51 -27 47 44.3           ~ 5 0
7 JADES-GS+053.15160-27.78791 EmG 03 32 36.378 -27 47 16.23         29.18 ~ 19 0
8 [BIB2006] HUDF-36777536 G 03 32 36.773 -27 47 53.59         28.98 ~ 17 0
9 [BIO2011] UDFy-36816421 G 03 32 36.81 -27 46 42.1           ~ 2 0
10 [ADW2016b] ID52 G 03 32 36.91 -27 46 51.7           ~ 6 0
11 [BIO2011] UDFz-37015533 G 03 32 36.957 -27 45 53.61           ~ 8 0
12 JADES-GS+053.15508-27.80178 EmG 03 32 37.214 -27 48 06.13           ~ 31 0
13 [BIO2015] XDFZ-2373347191 G 03 32 37.338 -27 47 19.18           ~ 7 0
14 [ADW2016b] ID44 G 03 32 37.355 -27 46 24.57           ~ 10 0
15 JADES-GS+053.15603-27.78098 G 03 32 37.443 -27 46 51.26         29.10 ~ 15 0
16 JADES-GS NC 137573 EmG 03 32 37.55 -27 46 01.9           ~ 8 0
17 JADES-GS+053.15682-27.76716 EmG 03 32 37.633 -27 46 01.51           ~ 39 0
18 [ADW2016b] ID47 G 03 32 37.798 -27 46 00.12           ~ 21 0
19 JADES-GS+053.15891-27.76508 EmG 03 32 38.134 -27 45 54.01           ~ 33 0
20 [SRE2013] UDF12-3817-7327 G 03 32 38.17 -27 47 32.7           ~ 3 0
21 [BIO2011] UDFz-38537518 G 03 32 38.530 -27 47 51.87           ~ 9 0
22 [ADW2016b] ID22 G 03 32 38.58 -27 46 15.0           ~ 6 0
23 [ADW2016b] ID3 G 03 32 38.587 -27 46 52.10           ~ 7 0
24 FIGS GS1 2077 EmG 03 32 38.805 -27 47 07.15     31.6     ~ 40 0
25 [ADW2016b] ID9 G 03 32 38.81 -27 46 34.3           ~ 7 0
26 JADES-GS+053.16238-27.80332 EmG 03 32 38.964 -27 48 11.66           ~ 9 0
27 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1900 0
28 JADES-GS+053.16288-27.76928 EmG 03 32 39.087 -27 46 09.16           ~ 11 0
29 JADES-GS+053.16337-27.77569 G 03 32 39.20 -27 46 32.2           ~ 11 0
30 [ADW2016b] ID53 G 03 32 39.22 -27 46 14.9           ~ 3 0
31 [ADW2016b] ID59 G 03 32 39.306 -27 46 18.18           ~ 6 0
32 [BIO2011] UDFy-39347255 G 03 32 39.34 -27 47 25.6           ~ 5 0
33 [MDB2013] UDF12-3939-7040 G 03 32 39.39 -27 47 04.0           ~ 6 0
34 ZFOURGE CDFS 17403 G 03 32 39.520 -27 47 17.40           ~ 13 0
35 [BIO2011] UDFz-39576564 G 03 32 39.581 -27 46 56.48   30.3656     29.29 ~ 15 0
36 [BIO2011] UDFz-39747451 G 03 32 39.750 -27 47 45.14   31.4314       ~ 8 0
37 [ADW2016b] ID16 G 03 32 39.836 -27 46 18.90           ~ 6 0
38 GLARE 1004 AGN 03 32 39.864 -27 46 19.08   29.9603 32.55     ~ 26 0
39 JADES-GS+053.16746-27.77201 EmG 03 32 40.19 -27 46 19.0           ~ 25 0
40 [BIO2011] UDFy-40328026 G 03 32 40.36 -27 48 02.2           ~ 7 0
41 [BIO2011] UDFz-40376559 G 03 32 40.37 -27 46 56.0           ~ 5 0
42 JADES-GS+053.16904-27.77884 EmG 03 32 40.566 -27 46 43.55   31.0031     29.57 ~ 36 0
43 [MDB2013] UDF12-4068-6498 G 03 32 40.675 -27 46 49.81   31.1635       ~ 5 0
44 [BIO2011] UDFz-40707346 G 03 32 40.71 -27 47 34.7           ~ 6 0
45 [SRE2013] UDF12-4090-6084 G 03 32 40.90 -27 46 08.4           ~ 1 0
46 [MDB2013] UDF12-4100-7216 G 03 32 41.01 -27 47 21.6           ~ 2 0
47 [FPG2010] 2013 G 03 32 41.049 -27 47 15.57           ~ 11 0
48 [BIO2015] XDFI-2414347041 G 03 32 41.43 -27 47 04.1           ~ 4 0
49 [BIO2011] UDFz-41597044 G 03 32 41.597 -27 47 04.47         29.18 ~ 10 0
50 [BIO2011] UDFz-41826112 EmG 03 32 41.823 -27 46 11.24         29.79 ~ 14 0
51 [BIO2015] XDFI-2420247073 G 03 32 42.016 -27 47 07.40           ~ 5 0
52 JADES-GS+053.17582-27.77446 EmG 03 32 42.191 -27 46 27.82         28.77 ~ 22 0
53 [BIO2011] UDFz-42406242 G 03 32 42.395 -27 46 24.23           ~ 5 0
54 [BIO2011] UDFy-42406550 G 03 32 42.40 -27 46 55.0           ~ 6 0
55 JADES-GS+053.17688-27.78156 EmG 03 32 42.45 -27 46 53.4           ~ 6 0
56 [BIO2011] UDFz-42567314 G 03 32 42.564 -27 47 31.41           ~ 30 0
57 [MDB2013] UDF12-4263-6416 G 03 32 42.63 -27 46 41.6           ~ 2 0
58 [BIO2015] XDFI-2426947749 G 03 32 42.684 -27 47 07.31           ~ 7 0
59 [BIO2015] XDFZ-2428746260 G 03 32 42.88 -27 46 26.1           ~ 4 0
60 [BIO2015] XDFY-2429346559 G 03 32 42.94 -27 46 56.0           ~ 3 0
61 [BIO2011] UDFy-43076241 G 03 32 43.08 -27 46 24.2           ~ 6 0
62 [BIO2010] UDFy-43086276 G 03 32 43.084 -27 46 27.72           ~ 15 0
63 [BIO2011] UDFy-43086259 G 03 32 43.09 -27 46 26.0           ~ 6 0
64 JADES-GS NC 130123 EmG 03 32 43.137 -27 46 28.47           ~ 16 0
65 [SRE2013] UDF12-4336-6203 G 03 32 43.36 -27 46 20.3           ~ 2 0
66 [EMD2013] UDF12-4344-6547 G 03 32 43.44 -27 46 54.7           ~ 7 0
67 [MDB2013] UDF12-4379-6511 G 03 32 43.794 -27 46 51.06           ~ 3 0
68 [BIO2015] XDFY-2438446310 G 03 32 43.84 -27 46 31.1           ~ 6 0
69 [SRE2013] UDF12-4426-6367 G 03 32 44.26 -27 46 36.7           ~ 1 0
70 [BIO2011] UDFz-44306452 G 03 32 44.308 -27 46 45.16         28.89 ~ 11 0
71 JADES-GS NC 127088 EmG 03 32 44.702 -27 46 44.29           ~ 24 0
72 [MDB2013] UDF12-4472-6362 G 03 32 44.721 -27 46 36.22           ~ 5 0
73 [BIO2015] XDFY-2447446449 G 03 32 44.741 -27 46 44.93           ~ 11 0
74 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0

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