2005ApJ...633.1126K

Query : 2005ApJ...633.1126K

2005ApJ...633.1126K - Astrophys. J., 633, 1126-1141 (2005/November-2)

Faint blue objects in the Hubble Deep Field-South revealed: white dwarfs, subdwarfs, and quasars.

KILIC M., MENDEZ R.A., VON HIPPEL T. and WINGET D.E.

Abstract (from CDS):

We explore the nature of the faint blue objects in the Hubble Deep Field-South. We have derived proper motions for the point sources in the Hubble Deep Field-South using a 3 yr baseline. Combining our proper-motion measurements with spectral energy distribution fitting enabled us to identify four quasars and 42 stars, including three white dwarf candidates. Two of these white dwarf candidates, HDF-S 1444 and 895, are found to display significant proper motion, 21.1±7.9 and 34.9±8.0 mas/yr, and are consistent with being thick-disk or halo white dwarfs located at ∼2 kpc. The other faint blue objects analyzed by Mendez & Minniti do not show any significant proper motion and are inconsistent with being halo white dwarfs; they do not contribute to the Galactic dark matter. The observed population of stars and white dwarfs is consistent with standard Galactic models.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Dark Matter - Galaxy: Halo - Stars: Evolution - Stars: White Dwarfs

Simbad objects: 65

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Number of rows : 65
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 Magellanic Stream HVC 00 32 -30.0           ~ 1079 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1900 0
4 [TIB2005] 880 * 03 32 40.451 -27 46 49.88 27.5394 26.9879 26.723     F1 7 0
5 [TIB2005] 1271 WD? 03 32 45.207 -27 47 32.36   27.1476 26.013     ~ 8 0
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
7 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1967 1
8 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
9 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
10 SB-WF 3923-0563 * 22 32 45.710 -60 34 13.37           ~ 4 1
11 [EAD2001] HDFS J223245.74-603309.7 G 22 32 45.7436 -60 33 09.597 25.712 25.965 23.964   22.185 ~ 7 0
12 SB-WF 3848-2694 * 22 32 46.223 -60 32 48.43           ~ 4 1
13 HDFS J223246.30-603221.8 G 22 32 46.2361 -60 32 21.683 25.010 26.981 26.048   24.457 ~ 6 0
14 [CDD2000] HDFS J223246.71-603207.2 G 22 32 46.6194 -60 32 07.003 26.202 24.183 23.489   23.083 ~ 8 0
15 [EAD2001] HDFS J223247.05-603316.0 G 22 32 47.0737 -60 33 15.953 27.495 26.237 24.705   23.573 ~ 8 0
16 SB-WF 3633-3913 G 22 32 47.3419 -60 31 59.719   24.05 22.59     ~ 7 0
17 [CDD2000] HDFS J223247.41-603350.2 G 22 32 47.410 -60 33 50.19           ~ 4 0
18 [EAD2001] HDFS J223247.58-603347.4 G 22 32 47.6244 -60 33 47.296 28.535 24.692 23.063 22.87 21.902 ~ 9 0
19 [EAD2001] HDFS J223247.94-603216.6 G 22 32 47.8712 -60 32 16.482 25.635 23.729 23.173   22.748 ~ 8 0
20 [EAD2001] HDFS J223247.94-603251.1 G 22 32 47.9339 -60 32 50.991   26.310 24.749   23.267 ~ 8 0
21 SB-WF 3522-4199 G 22 32 48.0064 -60 31 48.490 24.029 22.283 21.786   21.514 ~ 8 0
22 [EAD2001] HDFS J223248.36-603319.0 G 22 32 48.3931 -60 33 18.866 27.417 25.096 23.923   23.238 ~ 8 0
23 [EAD2001] HDFS J223248.47-603139.3 G 22 32 48.4126 -60 31 39.258 28.325 24.819 23.290   21.607 ~ 7 0
24 [CDD2000] HDFS J223248.69-603200.8 G 22 32 48.684 -60 32 00.75           ~ 4 0
25 [EAD2001] HDFS J223249.34-603149.0 G 22 32 49.2283 -60 31 48.861 27.437 25.659 24.048   23.034 ~ 8 0
26 [CDD2000] HDFS J223249.59-603347.7 QSO 22 32 49.585 -60 33 47.72           ~ 4 0
27 [CDD2000] HDFS J223249.63-603351.3 QSO 22 32 49.636 -60 33 51.29   29.366 27.350   26.618 ~ 5 0
28 SB-WF 3040-0885 G 22 32 50.4416 -60 34 00.849           ~ 4 0
29 [LFR2003] 711 QSO 22 32 50.5101348240 -60 32 18.789440892 21.791 20.292 20.362   19.907 ~ 7 0
30 [EAD2001] HDFS J223251.03-603353.5 G 22 32 51.0964 -60 33 53.336   26.137 24.169   21.713 ~ 8 0
31 SB-WF 2934-3065 G 22 32 51.1411 -60 32 33.953 28.721 26.344 25.131   24.454 ~ 7 1
32 [EAD2001] HDFS J223251.33-603237.6 G 22 32 51.3115 -60 32 37.643 27.194 24.839 23.244   21.811 ~ 8 0
33 [CDD2000] HDFS J223252.51-603300.3 G 22 32 52.51 -60 33 00.3   26.18       ~ 4 0
34 [CDD2000] HDFS J223252.52-603228.1 G 22 32 52.522 -60 32 28.05           ~ 4 0
35 [EAD2001] HDFS J223252.60-603259.5 G 22 32 52.6003 -60 32 59.547 27.184 24.363 22.821   21.683 ~ 8 0
36 [CDD2000] HDFS J223252.60-603315.1 G 22 32 52.603 -60 33 15.09   27.534 25.821   24.915 ~ 5 0
37 [EAD2001] HDFS J223253.09-603206.7 G 22 32 53.0276 -60 32 06.699 28.519 26.156 24.641   23.848 ~ 9 0
38 [LFR2003] 60 * 22 32 53.3265 -60 34 13.363 26.542 23.984 23.292   22.83 K1 10 0
39 [CDD2000] HDFS J223254.03-603257.4 G 22 32 54.031 -60 32 57.42           ~ 4 0
40 [LFR2003] 43 G 22 32 54.050 -60 34 19.36   28.348 27.523   26.00 ~ 6 0
41 SB-WF 2256-4322 G 22 32 54.8438 -60 31 44.062 24.936 21.521 20.293   18.803 ~ 7 0
42 [LFR2003] 245 G 22 32 54.860 -60 33 42.12 30.021 26.223 26.288   25.74 ~ 9 0
43 [CDD2000] HDFS J223255.01-603217.7 G 22 32 55.005 -60 32 17.66           ~ 4 0
44 [LFR2003] 168 * 22 32 55.4217 -60 33 54.884 27.826 26.579 25.431   23.31 M5 10 0
45 SB-WF 2117-0979 G 22 32 55.500 -60 33 57.42     25.91   25.87 ~ 6 0
46 [LFR2003] 190 * 22 32 55.9285 -60 33 51.336   27.015 25.210   23.92 M 9 0
47 NAME HDF-S reg 22 32 56 -60 33.0           ~ 580 0
48 [CDD2000] HDFS J223256.17-603156.5 G 22 32 56.0776 -60 31 56.585   29.257 26.856   24.506 ~ 8 0
49 [CDD2000] HDFS J223256.14-603256.9 G 22 32 56.1264 -60 32 56.868 28.196 24.901 24.315   23.912 ~ 7 0
50 [EAD2001] HDFS J223256.54-603152.8 G 22 32 56.4446 -60 31 52.866 23.866 22.384 21.985   21.775 ~ 7 0
51 [EAD2001] HDFS J223256.68-603313.8 G 22 32 56.6855 -60 33 13.711 27.976 26.199 24.551   22.471 ~ 8 0
52 SB-WF 1837-0773 * 22 32 56.9956823184 -60 34 05.751013980 20.984 19.224 19.310   18.712 A3-A4 7 0
53 [LFR2003] 83 * 22 32 57.7998 -60 34 08.643   27.491 25.285   23.04 M5 11 0
54 [LFR2003] 259 * 22 32 58.1372 -60 33 37.220 26.848 24.369 23.674   23.12 K3 10 0
55 [CDD2000] HDFS J223258.20-603315.2 G 22 32 58.198 -60 33 15.25 30.204 30.084 29.150   27.583 ~ 5 0
56 [LFR2003] 172 * 22 32 58.3567 -60 33 51.589 31.926 24.986 23.467   21.36 M5 10 0
57 [EAD2001] HDFS J223258.46-603307.7 G 22 32 58.4559 -60 33 07.649 27.490 25.193 23.768   22.731 ~ 8 0
58 [LFR2003] 507 WD* 22 32 58.7731 -60 33 23.510 23.697 23.073 23.173   23.02 D 9 0
59 [CDD2000] HDFS J223258.88-603421.9 G 22 32 58.872 -60 34 21.93 28.746 28.956 27.447   26.332 ~ 5 0
60 SB-WF 1480-0918 QSO 22 32 58.940 -60 34 00.07   28.5 26.71   26.47 ~ 7 0
61 [CDD2000] HDFS J223300.75-603342.2 G 22 33 00.7880 -60 33 42.184 24.859 24.392 24.386   24.173 ~ 7 0
62 SB-WF 0615-1665 G 22 33 03.6829639776 -60 33 30.699290088           ~ 7 0
63 [CDD2000] HDFS J223304.54-603322.5 G 22 33 04.5672 -60 33 22.580   26.700 25.198   24.279 ~ 6 0
64 SB-WF 0351-0908 G 22 33 05.0354967096 -60 34 00.856012872           ~ 6 0
65 SB-WF 0243-0975 * 22 33 05.5655 -60 33 58.539           ~ 4 0

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