2006ApJ...648..375S

Query : 2006ApJ...648..375S

2006ApJ...648..375S - Astrophys. J., 648, 375-382 (2006/September-1)

The Araucaria Project: distance to the Local Group galaxy NGC 3109 from near-infrared photometry of Cepheids.

SOSZYNSKI I., GIEREN W., PIETRZYNSKI G., BRESOLIN F., KUDRITZKI R.-P. and STORM J.

Abstract (from CDS):

We present near-infrared J- and K-band photometry of 77 Cepheid variables in the Local Group galaxy NGC 3109. Combining our data with the previously published optical V- and I-band photometry of Cepheids in this galaxy, we derive an accurate distance and interstellar reddening toward NGC 3109. Adopting a distance modulus of 18.5 mag for the Large Magellanic Cloud, we obtain a true distance modulus to NGC 3109 of (m-M)0=25.571±0.024 mag (random error), corresponding to a distance of 1.30±0.02 Mpc. The systematic uncertainty of this value (apart from the adopted LMC distance) is of the order of ±3%, the main contributors to this value being the uncertainty of the photometric zero points and the effect of blending with unresolved companion stars. The total reddening determined from our multiwavelength solution is E(B-V)=0.087±0.012 mag. About half of the reddening is produced internal to NGC 3109. Our distance result is consistent with previous determinations of the distance to NGC 3109 but has significantly reduced error bars.

Abstract Copyright: ∼

Journal keyword(s): Stars: Variables: Cepheids - Galaxies: Distances and Redshifts - galaxies: individual (NGC 3109) - Infrared: Stars

VizieR on-line data: <Available at CDS (J/ApJ/648/375): table1.dat table2.dat>

Simbad objects: 79

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Number of rows : 79
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 [PGU2006] cep012 Ce* 10 02 53.53 -26 09 37.0     21.357   20.351 ~ 2 0
2 [PGU2006] cep104 Ce* 10 02 53.62 -26 09 54.1     22.203   21.065 ~ 2 0
3 [PGU2006] cep103 Ce* 10 02 54.09 -26 08 57.7     22.165   21.255 ~ 2 0
4 [PGU2006] cep023 Ce* 10 02 54.37 -26 09 19.2     21.248   20.412 ~ 2 0
5 [PGU2006] cep025 Ce* 10 02 55.00 -26 08 56.2     21.184   19.824 ~ 2 0
6 [PGU2006] cep020 Ce* 10 02 55.42 -26 09 13.7     21.740   20.869 ~ 3 0
7 [PGU2006] cep097 Ce* 10 02 55.50 -26 10 05.5     22.216   21.592 ~ 4 0
8 [PGU2006] cep108 Ce* 10 02 55.76 -26 09 34.4     22.755   22.258 ~ 2 0
9 [PGU2006] cep073 Ce* 10 02 55.83 -26 08 53.4     22.064   21.474 ~ 2 0
10 [PGU2006] cep059 Ce* 10 02 55.95 -26 10 20.4     22.293   21.521 ~ 2 0
11 [PGU2006] cep092 Ce* 10 02 56.00 -26 10 37.2     22.428   21.787 ~ 4 0
12 [PGU2006] cep056 Ce* 10 02 57.41 -26 09 11.6     21.712   20.772 ~ 4 0
13 [PGU2006] cep009 Ce* 10 02 57.57 -26 09 55.5     21.098   20.150 ~ 5 0
14 [PGU2006] cep031 Ce* 10 02 57.81 -26 09 49.8     21.479   20.659 ~ 2 0
15 [PGU2006] cep027 Ce* 10 02 58.24 -26 08 48.2     21.687   20.807 ~ 2 0
16 [PGU2006] cep099 Ce* 10 02 58.38 -26 09 10.5   22.23 21.733   21.164 ~ 3 0
17 [PGU2006] cep100 Ce* 10 02 58.59 -26 09 49.7     21.918   21.861 ~ 2 0
18 [PGU2006] cep022 Ce* 10 02 58.65 -26 09 11.0     20.996   20.291 ~ 2 0
19 [PGU2006] cep017 Ce* 10 02 59.18 -26 09 29.1   22.00 21.372   20.597 ~ 3 0
20 EV* N3109 V0017 Ce* 10 02 59.25 -26 09 06.7     21.654   20.760 ~ 5 0
21 [PGU2006] cep069 Ce* 10 02 59.33 -26 08 52.4     22.180   21.029 ~ 4 0
22 [PGU2006] cep011 Ce* 10 03 00.16 -26 10 36.1     21.384   20.462 ~ 7 0
23 [PGU2006] cep051 Ce* 10 03 00.55 -26 10 42.1     21.925   21.099 ~ 5 0
24 [PGU2006] cep058 Ce* 10 03 00.67 -26 09 10.5     21.736   21.102 ~ 2 0
25 [PGU2006] cep078 Ce* 10 03 01.33 -26 09 03.5   22.63 22.277   21.866 ~ 3 0
26 [PGU2006] cep072 Ce* 10 03 01.45 -26 08 55.7   22.57 22.013   21.309 ~ 3 0
27 [PGU2006] cep007 Ce* 10 03 01.79 -26 09 28.8     21.727   20.552 ~ 2 0
28 [PGU2006] cep039 Ce* 10 03 02.24 -26 09 20.2     21.842   21.146 ~ 5 0
29 [PGU2006] cep014 Ce* 10 03 02.97 -26 09 13.0     21.126     ~ 2 0
30 [PGU2006] cep080 Ce* 10 03 03.39 -26 08 54.4     22.398   21.637 ~ 2 0
31 [PGU2006] cep066 Ce* 10 03 03.88 -26 10 08.9     21.849   21.148 ~ 2 0
32 [PGU2006] cep067 Ce* 10 03 04.20 -26 09 40.8     22.410   21.359 ~ 2 0
33 [PGU2006] cep075 Ce* 10 03 04.54 -26 09 46.9     22.747   21.615 ~ 2 0
34 [PGU2006] cep077 Ce* 10 03 05.10 -26 09 05.7     21.809   21.222 ~ 2 0
35 [PGU2006] cep026 Ce* 10 03 05.25 -26 08 58.7     21.959   21.228 ~ 2 0
36 [PGU2006] cep101 Ce* 10 03 05.41 -26 08 59.6     21.983   21.436 ~ 2 0
37 [PGU2006] cep088 Ce* 10 03 05.58 -26 09 39.7     22.206   20.822 ~ 2 0
38 [PGU2006] cep064 Ce* 10 03 05.80 -26 10 08.7     21.917   21.343 ~ 5 0
39 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 825 2
40 [PGU2006] cep090 Ce* 10 03 07.53 -26 10 17.1     22.135   21.456 ~ 2 0
41 [PGU2006] cep002 Ce* 10 03 07.83 -26 09 54.5     20.174   19.373 ~ 2 0
42 [PGU2006] cep032 Ce* 10 03 08.44 -26 09 40.3     21.108   20.200 ~ 2 0
43 [PGU2006] cep029 Ce* 10 03 08.68 -26 10 04.2     21.071   20.462 ~ 2 0
44 [PGU2006] cep057 Ce* 10 03 08.82 -26 09 33.8     21.850   20.554 ~ 2 0
45 [PGU2006] cep048 Ce* 10 03 08.96 -26 10 07.2     21.644   21.190 ~ 2 0
46 [PGU2006] cep074 Ce* 10 03 09.17 -26 09 40.5     22.102   21.403 ~ 2 0
47 [PGU2006] cep094 Ce* 10 03 09.40 -26 10 17.6     22.748   21.910 ~ 2 0
48 [PGU2006] cep068 Ce* 10 03 10.06 -26 10 28.4     21.894   21.093 ~ 2 0
49 [PGU2006] cep016 Ce* 10 03 10.58 -26 11 07.6     20.967   20.178 ~ 7 0
50 [PGU2006] cep036 Ce* 10 03 10.75 -26 09 38.6     21.324   20.770 ~ 2 0
51 [PGU2006] cep018 Ce* 10 03 10.86 -26 09 38.6     21.385   20.583 ~ 2 0
52 [SC88] V42 Ce* 10 03 10.99 -26 09 25.8     20.643   19.680 ~ 3 0
53 [PGU2006] cep079 Ce* 10 03 11.02 -26 10 11.9     22.015   21.243 ~ 2 0
54 [PGU2006] cep030 Ce* 10 03 11.39 -26 09 49.2     21.825   21.070 ~ 2 0
55 [PGU2006] cep084 Ce* 10 03 13.02 -26 08 53.6     22.681   21.606 ~ 2 0
56 [PGU2006] cep052 Ce* 10 03 14.48 -26 08 55.3     21.991   21.214 ~ 5 0
57 [PGU2006] cep003 Ce* 10 03 14.66 -26 09 23.0     20.677   19.753 ~ 2 0
58 [PGU2006] cep105 Ce* 10 03 14.83 -26 10 03.1     22.575   21.742 ~ 2 0
59 [PGU2006] cep102 Ce* 10 03 15.00 -26 08 59.1     22.182   21.432 ~ 2 0
60 [PGU2006] cep047 Ce* 10 03 15.01 -26 10 10.3     21.417   20.905 ~ 5 0
61 [PGU2006] cep061 Ce* 10 03 15.41 -26 09 41.9     21.174   20.370 ~ 5 0
62 [PGU2006] cep053 Ce* 10 03 15.59 -26 10 18.2     21.944   21.269 ~ 5 0
63 [PGU2006] cep055 Ce* 10 03 16.56 -26 08 58.7     21.924   21.031 ~ 2 0
64 [SC88] V47 Ce* 10 03 16.97 -26 09 04.7     21.547   20.754 ~ 3 0
65 [PGU2006] cep098 Ce* 10 03 17.06 -26 09 05.8     21.938   21.223 ~ 2 0
66 [PGU2006] cep038 Ce* 10 03 18.31 -26 09 05.9     21.809   20.959 ~ 2 0
67 [PGU2006] cep015 Ce* 10 03 18.39 -26 10 31.5     21.305   20.532 ~ 2 0
68 [PGU2006] cep050 Ce* 10 03 18.62 -26 10 40.5     21.772   21.075 ~ 7 0
69 [SC88] V46 Ce* 10 03 18.76 -26 09 08.8     22.166   21.407 ~ 3 0
70 [PGU2006] cep095 Ce* 10 03 18.92 -26 09 14.8     22.046   21.144 ~ 2 0
71 [PGU2006] cep110 Ce* 10 03 18.92 -26 09 10.7     22.177   21.372 ~ 2 0
72 [PGU2006] cep004 Ce* 10 03 19.50 -26 10 12.8     20.449   19.644 ~ 2 0
73 [PGU2006] cep054 Ce* 10 03 20.08 -26 10 27.1     21.679   20.959 ~ 2 0
74 [PGU2006] cep096 Ce* 10 03 20.83 -26 09 33.1     22.080   21.278 ~ 2 0
75 [PGU2006] cep060 Ce* 10 03 21.39 -26 10 42.6     22.007   21.432 ~ 2 0
76 [PGU2006] cep035 Ce* 10 03 21.40 -26 08 43.3     21.652   20.704 ~ 2 0
77 [PGU2006] cep001 Ce* 10 03 21.84 -26 09 52.9     20.463   19.512 ~ 4 0
78 [PGU2006] cep043 Ce* 10 03 23.30 -26 10 10.8     21.778   20.652 ~ 2 0
79 NAME Local Group GrG ~ ~           ~ 9325 0

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