2022ApJ...927..236R

Query : 2022ApJ...927..236R

2022ApJ...927..236R - Astrophys. J., 927, 236-236 (2022/March-2)

The Physical Properties of Luminous z >= 8 Galaxies and Implications for the Cosmic Star Formation Rate Density from ∼0.35 deg2 of (Pure-)Parallel HST Observations.

ROBERTS-BORSANI G., MORISHITA T., TREU T., LEETHOCHAWALIT N. and TRENTI M.

Abstract (from CDS):

We present the largest systematic, Hubble Space Telescope (HST)-based search to date for luminous z >= 8 galaxy candidates using ∼1267 arcmin2 of (pure-)parallel observations from a compilation of 288 random sightlines with Advanced Camera for Surveys and Wide Field Camera 3 observations, derived from the (Super)Brightest of Reionizing Galaxies (SuperBoRG) data set and together representing a factor ∼1.12x larger than existing space-based data sets. Using near-infrared (NIR) color cuts and careful photo-z analyses, we find 31 z >= 8 galaxy candidates over 29 unique sightlines, and derive global galaxy properties such as UV magnitudes and continuum slopes, sizes, and rest-frame optical properties (e.g., star formation rates (SFRs), stellar masses, Av). Taking advantage of the (pure-)parallel nature of our data set-making it one of the most representative thus far-and derived SFRs, we evaluate the cosmic SFR density for the bright end of the UV luminosity function (LF) at z ∼ 8-10 and test the validity of luminosity-function-derived results using a conversion factor. We find that our method yields comparable results to those derived with LFs. Furthermore, we present follow-up observations of five (Super)BoRG targets with the Keck Multi-Object Spectrometer For Infra-Red Exploration (MOSFIRE) instrument, finding no evidence of Lyα in >3 hr of Y-band observations in either, consistent with a largely neutral medium at z ∼ 8. Our results offer a definitive HST legacy on the bright end of the LF and provide a valuable benchmark as well as targets for follow-up with the James Webb Space Telescope.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Early universe - High-redshift galaxies - Reionization - Star formation

Simbad objects: 75

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Number of rows : 75
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 sBoRG 0037-3337 669 G 00 37 11.3 -33 37 07           ~ 1 0
2 sBoRG 0037-3337 563 G 00 37 12.0 -33 37 27           ~ 2 0
3 sBoRG 0104+0021 339 G 01 03 30.8 +00 20 13           ~ 2 0
4 BoRG 0116+1425 747 G 01 16 08.930 +14 24 24.50           ~ 5 0
5 sBoRG 0143+4434 56 G 01 43 15.2 +44 32 38           ~ 1 0
6 sBoRG 0314-6712 553 G 03 13 47.9 -67 12 35           ~ 3 0
7 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1900 0
8 sBoRG 0409-5317 291 G 04 09 11.9 -53 17 27           ~ 1 0
9 sBoRG 0409-5317 313 G 04 09 20.9 -53 15 32           ~ 2 0
10 BoRG 0440-5244 682 G 04 39 46.9402 -52 43 55.258           ~ 7 0
11 sBoRG 0728+0509 232 G 07 27 38.2 +05 07 52           ~ 2 0
12 BoRG 0t 0958-0641 G 07 50 51.410 +29 16 17.54           ~ 7 0
13 sBoRG 0830+6555 840 G 08 30 09.3 +65 55 07           ~ 1 0
14 sBoRG 0830+6555 244 G 08 30 12.5 +65 54 13           ~ 2 0
15 BoRG 0853+0310 145 G 08 52 44.520 +03 08 48.10           ~ 6 0
16 sBoRG 0859+4114 138 G 08 59 18.0 +41 13 25           ~ 2 0
17 sBoRG 0859+4114 81 G 08 59 18.4 +41 13 22           ~ 1 0
18 sBoRG 0859+4114 718 G 08 59 21.6 +41 14 16           ~ 2 0
19 sBoRG 0925+1400 899 G 09 25 09.0 +13 59 57           ~ 2 0
20 sBoRG 0925+1400 131 G 09 25 15.3 +13 59 12           ~ 1 0
21 sBoRG 0926+4426 1158 G 09 25 32.8 +44 25 25           ~ 1 0
22 sBoRG 0948+5757 697 G 09 48 17.4 +57 57 18           ~ 2 0
23 sBoRG 0955+4528 914 G 09 55 18.7 +45 29 22           ~ 2 0
24 sBoRG 0956+2848 986 G 09 56 23.1 +28 48 34           ~ 2 0
25 BoRG 0956+2848 98 G 09 56 29.456 +28 47 31.23           ~ 2 0
26 sBoRG 1014-0423 166 G 10 14 01.6 -04 22 39           ~ 1 0
27 sBoRG 1017-2052 310 G 10 17 22.1 -20 52 11           ~ 2 0
28 sBoRG 1031+5052 602 G 10 30 36.6 +50 52 25           ~ 1 0
29 BoRG 1033+5051 126 G 10 32 44.7144 +50 50 30.072           ~ 7 0
30 sBoRG 1048+1518 72 G 10 47 54.5 +15 17 07           ~ 1 0
31 sBoRG 1048+4433 687 G 10 48 24.0 +44 34 03           ~ 1 0
32 BoRG 1103+2913 1216 G 11 02 40.6 +29 13 38           ~ 2 0
33 sBoRG 1104+2813 447 G 11 03 53.3 +28 13 47           ~ 2 0
34 sBoRG 1115+2548 455 G 11 14 38.9 +25 48 03           ~ 2 0
35 BoRG 1131+3114 1244 G 11 31 25.7648 +31 17 39.233           ~ 2 0
36 sBoRG 1142+2647 1280 G 11 41 59.7 +26 46 51           ~ 1 0
37 sBoRG 1142+3020 67 G 11 42 33.7 +30 18 10           ~ 2 0
38 sBoRG 1149+2202 343 G 11 48 38.0 +22 01 20           ~ 2 0
39 sBoRG 1149+2202 169 G 11 48 41.4 +22 01 02           ~ 2 0
40 BoRG 1152+3402 912 G 11 51 37.850 +34 02 22.90           ~ 3 0
41 sBoRG 1152+3402 693 G 11 51 39.1 +34 02 40           ~ 1 0
42 BoRG 1153+0056 540 G 11 52 45.8383 +00 55 55.227           ~ 2 0
43 sBoRG 1206-0852 423 G 12 06 23.1 -08 52 45           ~ 1 0
44 sBoRG 1218+3008 638 G 12 18 13.9 +30 07 32           ~ 2 0
45 sBoRG 1237+2544 806 G 12 37 30.0 +25 44 34           ~ 1 0
46 sBoRG 1313+1804 2210 G 13 12 46.9 +18 04 09           ~ 1 0
47 BoRG 1358+4334 482 G 13 57 46.74 +43 33 28.0           ~ 2 0
48 sBoRG 1413+0918 1405 G 14 12 50.2 +09 18 03           ~ 1 0
49 sBoRG 1416+1638 150 G 14 15 59.2 +16 36 48           ~ 1 0
50 NAME Extended Groth Strip reg 14 19 +52.8           ~ 1023 0
51 sBoRG 1420+3743 1078 G 14 20 12.4 +37 44 02           ~ 1 0
52 sBoRG 1420+3743 1025 G 14 20 14.3 +37 44 08           ~ 2 0
53 BoRG 1437+5043 1137 G 14 36 50.560 +50 43 33.69           ~ 11 0
54 BoRG 1437+5043 172 G 14 36 53.3633 +50 42 29.127           ~ 4 0
55 BoRG 1437+5043 879 G 14 36 53.7719 +50 43 33.486           ~ 4 0
56 sBoRG 1437+5043 259 G 14 37 00.3 +50 42 52           ~ 1 0
57 sBoRG 1442-0212 245 G 14 42 06.7 -02 12 19           ~ 1 0
58 sBoRG 1456+2754 381 G 14 56 18.9 +27 54 05           ~ 1 0
59 sBoRG 1456+2754 665 G 14 56 21.3 +27 54 10           ~ 1 0
60 BoRG 1459+7146 785 G 14 58 53.7 +71 46 53           ~ 3 0
61 sBoRG 1515-1517 698 G 15 14 58.6 -15 16 13           ~ 2 0
62 sBoRG 1525+1000 719 G 15 24 47.3 +09 59 49           ~ 1 0
63 sBoRG 1558+0812 601 G 15 58 16.7 +08 12 30           ~ 2 0
64 sBoRG 1558+0812 368 G 15 58 17.5 +08 11 55           ~ 1 0
65 sBoRG 1607+1332 996 G 16 06 48.4 +13 32 48           ~ 2 0
66 BoRG 1632+3733 694 G 16 32 15.0814 +37 33 24.693           ~ 2 0
67 sBoRG 1917-3335 929 G 19 17 24.5 -33 35 33           ~ 2 0
68 sBoRG 2008-6610 1020 G 20 08 05.8 -66 09 57           ~ 1 0
69 sBoRG 2055-3408 1026 G 20 54 41.1 -34 07 56           ~ 1 0
70 BoRG 2132+1004 24 G 21 32 13.8227 +10 02 39.682           ~ 2 0
71 sBoRG 2134-0708 2928 G 21 34 12.2 -07 07 21           ~ 2 0
72 BoRG 2140+0241 303 G 21 39 32.505 +02 41 06.61           ~ 3 0
73 BoRG 2203+1851 1061 G 22 02 46.3297 +18 51 29.515           ~ 7 0
74 sBoRG 2212-0354 102 G 22 12 02.8 -03 55 06           ~ 1 0
75 BoRG 2229-0945 394 G 22 28 45.661 -09 44 56.88           ~ 3 0

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