2012AJ....143...50W

Query : 2012AJ....143...50W

2012AJ....143...50W - Astron. J., 143, 50 (2012/February-0)

The spectral energy distributions of white dwarfs in 47 Tucanae: the distance to the cluster.

WOODLEY K.A., GOLDSBURY R., KALIRAI J.S., RICHER H.B., TREMBLAY P.-E., ANDERSON J., BERGERON P., DOTTER A., ESTEVES L., FAHLMAN G.G., HANSEN B.M.S., HEYL J., HURLEY J., RICH R.M., SHARA M.M. and STETSON P.B.

Abstract (from CDS):

We present a new distance determination to the Galactic globular cluster 47 Tucanae by fitting the spectral energy distributions of its white dwarfs (WDs) to pure hydrogen atmosphere WD models. Our photometric data set is obtained from a 121-orbit Hubble Space Telescope program using the Wide Field Camera 3 UVIS/IR channels, capturing F390W, F606W, F110W, and F160W images. These images cover more than 60 arcmin2 and extend over a radial range of 5-13.7 arcmin (6.5-17.9 pc) within the globular cluster. Using a likelihood analysis, we obtain a best-fitting unreddened distance modulus of (m - M)o = 13.36±0.02±0.06 corresponding to a distance of 4.69±0.04±0.13 kpc, where the first error is random and the second is systematic. We also search the WD photometry for infrared excess in the F160W filter, indicative of low-mass companions, and find no convincing cases within our sample.

Abstract Copyright: ∼

Journal keyword(s): globular clusters: individual: 47 Tucanae - stars: distances - white dwarfs

VizieR on-line data: <Available at CDS (J/AJ/143/50): table2.dat>

Nomenclature: Table 2: [WGK2012] WD NN (Nos 1-59).

Simbad objects: 66

goto Full paper

goto View the references in ADS

Number of rows : 66
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 [WGK2012] WD 22 WD? 00 21 07.243 -72 04 31.54     24.712     ~ 1 0
2 [WGK2012] WD 23 WD? 00 21 15.803 -72 06 00.35     24.438     ~ 1 0
3 [WGK2012] WD 24 WD? 00 21 17.805 -72 04 23.82     23.469     ~ 1 0
4 [WGK2012] WD 28 WD? 00 21 23.115 -72 03 44.39     24.088     ~ 1 0
5 [WGK2012] WD 25 WD? 00 21 23.488 -72 03 44.75     24.057     ~ 1 0
6 [WGK2012] WD 27 WD? 00 21 26.729 -72 01 40.22     25.337     ~ 1 0
7 [WGK2012] WD 21 WD? 00 21 30.986 -72 08 00.98     24.272     ~ 1 0
8 [WGK2012] WD 30 WD? 00 21 31.482 -72 01 05.77     24.505     ~ 1 0
9 [WGK2012] WD 10 WD? 00 21 31.487 -72 08 35.91     24.129     ~ 1 0
10 [WGK2012] WD 26 WD? 00 21 32.257 -72 05 38.40     22.940     ~ 1 0
11 [WGK2012] WD 11 WD? 00 21 39.401 -72 09 03.65     25.498     ~ 1 0
12 [WGK2012] WD 29 WD? 00 21 39.901 -71 59 46.59     24.789     ~ 1 0
13 [WGK2012] WD 16 WD? 00 21 41.681 -72 07 49.43     24.265     ~ 1 0
14 [WGK2012] WD 17 WD? 00 21 42.075 -72 07 47.08     24.711     ~ 1 0
15 [WGK2012] WD 18 WD? 00 21 46.162 -72 07 54.27     23.877     ~ 1 0
16 [WGK2012] WD 14 WD? 00 21 47.243 -72 08 22.44     25.168     ~ 1 0
17 [WGK2012] WD 15 WD? 00 21 47.989 -72 08 15.89     25.463     ~ 1 0
18 [WGK2012] WD 31 WD? 00 21 48.558 -72 00 42.08     23.569     ~ 1 0
19 [WGK2012] WD 12 WD? 00 21 51.751 -72 09 31.15     24.527     ~ 1 0
20 [WGK2012] WD 20 WD? 00 21 53.267 -72 08 02.38     24.744     ~ 1 0
21 [WGK2012] WD 32 WD? 00 21 55.432 -71 58 34.17     24.549     ~ 1 0
22 [WGK2012] WD 3 WD? 00 21 57.095 -72 10 18.59     24.381     ~ 1 0
23 [WGK2012] WD 35 WD? 00 21 57.370 -71 59 11.32     23.291     ~ 1 0
24 [WGK2012] WD 34 WD? 00 21 59.219 -71 58 45.40     25.140     ~ 1 0
25 [WGK2012] WD 4 WD? 00 22 00.123 -72 10 12.02     24.495     ~ 1 0
26 [WGK2012] WD 33 WD? 00 22 00.315 -71 58 30.80     25.080     ~ 1 0
27 [WGK2012] WD 5 WD? 00 22 00.719 -72 09 15.09     25.125     ~ 1 0
28 [WGK2012] WD 13 WD? 00 22 01.247 -72 09 16.43     25.088     ~ 1 0
29 [WGK2012] WD 7 WD? 00 22 01.506 -72 08 34.31     23.684     ~ 1 0
30 [WGK2012] WD 19 WD? 00 22 02.034 -72 08 35.65     23.688     ~ 1 0
31 [WGK2012] WD 36 WD? 00 22 05.843 -71 59 28.07     24.749     ~ 1 0
32 [WGK2012] WD 38 WD? 00 22 12.785 -71 58 54.71     25.015     ~ 1 0
33 [WGK2012] WD 37 WD? 00 22 21.111 -71 57 49.36     23.832     ~ 1 0
34 [WGK2012] WD 9 WD? 00 22 23.633 -72 09 00.06     24.001     ~ 1 0
35 [WGK2012] WD 8 WD? 00 22 25.423 -72 09 09.83     25.138     ~ 1 0
36 [WGK2012] WD 2 WD? 00 22 25.686 -72 10 11.84     23.950     ~ 1 0
37 [WGK2012] WD 6 WD? 00 22 26.133 -72 09 20.01     24.287     ~ 1 0
38 [WGK2012] WD 43 WD? 00 22 33.763 -71 58 55.87     25.548     ~ 1 0
39 [WGK2012] WD 41 WD? 00 22 36.414 -71 57 47.74     24.775     ~ 1 0
40 [WGK2012] WD 1 WD? 00 22 40.912 -72 10 32.52     25.362     ~ 1 0
41 [WGK2012] WD 39 WD? 00 22 55.003 -71 57 27.72     24.749     ~ 1 0
42 [WGK2012] WD 59 WD? 00 22 55.764 -72 08 56.88     23.219     ~ 1 0
43 [WGK2012] WD 42 WD? 00 22 56.251 -71 57 55.80     23.420     ~ 1 0
44 [WGK2012] WD 44 WD? 00 22 59.738 -71 57 42.01     25.060     ~ 1 0
45 [WGK2012] WD 40 WD? 00 22 59.788 -71 57 41.86     24.976     ~ 1 0
46 [WGK2012] WD 52 WD? 00 23 00.862 -72 10 38.40     25.221     ~ 1 0
47 [WGK2012] WD 57 WD? 00 23 03.033 -72 09 05.57     25.467     ~ 1 0
48 [WGK2012] WD 54 WD? 00 23 09.435 -72 10 11.30     24.209     ~ 1 0
49 [WGK2012] WD 56 WD? 00 23 12.136 -72 09 23.12     25.184     ~ 1 0
50 [WGK2012] WD 58 WD? 00 23 13.822 -72 08 18.48     23.794     ~ 1 0
51 [WGK2012] WD 53 WD? 00 23 17.641 -72 09 53.81     25.103     ~ 1 0
52 [WGK2012] WD 55 WD? 00 23 18.825 -72 09 08.07     24.025     ~ 1 0
53 [WGK2012] WD 48 WD? 00 23 21.810 -71 59 18.03     24.376     ~ 1 0
54 [WGK2012] WD 46 WD? 00 23 26.967 -71 58 57.50     23.617     ~ 1 0
55 [WGK2012] WD 50 WD? 00 23 28.612 -72 00 43.42     24.289     ~ 1 0
56 [WGK2012] WD 51 WD? 00 23 32.099 -72 09 39.30     24.166     ~ 1 0
57 [WGK2012] WD 47 WD? 00 23 32.372 -71 59 45.70     23.026     ~ 1 0
58 [WGK2012] WD 45 WD? 00 23 33.344 -71 58 26.77     24.387     ~ 1 0
59 [WGK2012] WD 49 WD? 00 23 37.390 -72 00 36.89     23.753     ~ 1 0
60 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
61 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
62 M 37 OpC 05 52 18.6 +32 32 36           ~ 436 0
63 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
64 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
65 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
66 NAME Local Group GrG ~ ~           ~ 9325 0

To bookmark this query, right click on this link: simbad:objects in 2012AJ....143...50W and select 'bookmark this link' or equivalent in the popup menu