2017AJ....154..263K

Query : 2017AJ....154..263K

2017AJ....154..263K - Astron. J., 154, 263-263 (2017/December-4)

The Araucaria Project: the distance to the Fornax Dwarf Galaxy from near-infrared photometry of RR Lyrae stars.

KARCZMAREK P., PIETRZYNSKI G., GORSKI M., GIEREN W. and BERSIER D.

Abstract (from CDS):

We have obtained single-phase near-infrared (NIR) magnitudes in the J and K bands for 77 RR Lyrae (RRL) stars in the Fornax Dwarf Spheroidal Galaxy. We have used different theoretical and empirical NIR period-luminosity-metallicity calibrations for RRL stars to derive their absolute magnitudes, and found a true, reddening-corrected distance modulus of 20.818±0.015(statistical)±0.116(systematic) mag. This value is in excellent agreement with the results obtained within the Araucaria Project from the NIR photometry of red clump stars (20.858 ± 0.013 mag), the tip of the red giant branch (20.84±0.04±0.14 mag), as well as with other independent distance determinations to this galaxy. The effect of metallicity and reddening is substantially reduced in the NIR domain, making this method a robust tool for accurate distance determination at the 5% level. This precision is expected to reach the level of 3% once the zero points of distance calibrations are refined thanks to the Gaia mission. NIR period-luminosity-metallicity relations of RRL stars are particularly useful for distance determinations to galaxies and globular clusters up to 300 kpc, that lack young standard candles, like Cepheids.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: distances and redshifts - galaxies: individual: Fornax - infrared: stars - stars: variables: RR Lyrae - stars: variables: RR Lyrae

VizieR on-line data: <Available at CDS (J/AJ/154/263): table4.dat>

Simbad objects: 88

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Number of rows : 88
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 SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
3 FBW J023927.1-342427 RR* 02 39 27.27 -34 24 25.4     21.076   21.057 ~ 2 0
4 FBW J023927.2-342220 RR* 02 39 27.42 -34 22 18.9     21.255   20.656 ~ 2 0
5 DES J023927.72-342124.5 RR* 02 39 27.88 -34 21 23.0     21.486   20.943 ~ 3 0
6 FBW J023928.1-342655 RR* 02 39 28.28 -34 26 53.9     21.450   20.838 ~ 2 0
7 DES J023939.22-342741.4 RR* 02 39 39.34 -34 27 39.8     21.156   20.569 ~ 3 0
8 FBW J023939.3-342711 RR* 02 39 39.5655310608 -34 27 09.498429324     21.434   20.957 ~ 2 0
9 FBW J023942.1-342712 RR* 02 39 42.20 -34 27 11.5     21.707   21.024 ~ 2 0
10 DES J023943.35-342738.4 RR* 02 39 43.43 -34 27 36.9     21.786   20.928 ~ 3 0
11 FBW J023944.6-342514 RR* 02 39 44.74 -34 25 12.8     21.503   20.894 ~ 2 0
12 FBW J023945.7-342522 RR* 02 39 45.90 -34 25 20.7     21.491   21.184 ~ 2 0
13 FBW J023947.3-342836 RR* 02 39 47.43 -34 28 34.6     21.047   20.505 ~ 3 0
14 NAME Fornax H3 GlC 02 39 48.16 -34 15 28.6   13.59       ~ 131 0
15 FBW J023949.6-342358 RR* 02 39 49.72 -34 23 57.0     21.203   20.621 ~ 2 0
16 FBW J023950.3-342320 RR* 02 39 50.48 -34 23 19.1     21.416   20.818 ~ 2 0
17 FBW J023955.0-343301 RR* 02 39 55.12 -34 33 01.9     21.304   20.638 ~ 2 0
18 DES J023955.50-342317.9 RR* 02 39 55.60 -34 23 16.8     21.530   20.907 ~ 3 0
19 FBW J023956.1-342632 RR* 02 39 56.15 -34 26 32.2     21.674   21.052 ~ 3 0
20 DES J023957.29-342455.0 RR* 02 39 57.36 -34 24 53.7     21.423   20.989 ~ 3 0
21 DES J023957.44-342558.2 RR* 02 39 57.51 -34 25 57.2     21.145   20.594 ~ 4 0
22 FBW J023958.5-343224 RR* 02 39 58.5394795992 -34 32 24.076998672     21.393   20.906 ~ 2 0
23 FBW J023958.5-342722 RR* 02 39 58.58 -34 27 22.4     21.297   20.695 ~ 2 0
24 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
25 FBW J023959.6-342911 RR* 02 39 59.64 -34 29 12.1     21.118   20.342 ~ 2 0
26 DES J024001.61-342717.5 RR* 02 40 01.60 -34 27 17.9     21.529   20.755 ~ 3 0
27 DES J024004.81-342628.3 RR* 02 40 04.82 -34 26 27.0     21.484   21.003 ~ 4 0
28 FBW J024005.2-342233 RR* 02 40 05.26 -34 22 32.1     21.214   21.393 ~ 2 0
29 DES J024006.89-342331.4 RR* 02 40 06.92 -34 23 29.8     21.326   20.882 ~ 3 0
30 NAME Fornax H4 GlC 02 40 07.697 -34 32 10.59   15.18 13.91 14.08   ~ 112 0
31 FBW J024011.8-343114 RR* 02 40 11.78 -34 31 14.3     21.569   20.808 ~ 2 0
32 DES J024012.85-342834.4 RR* 02 40 12.87 -34 28 32.6     21.314   21.423 ~ 3 0
33 FBW J024013.6-342723 RR* 02 40 13.7090307552 -34 27 23.357738484     21.451   21.128 ~ 2 0
34 FBW J024015.8-342650 RR* 02 40 15.85 -34 26 48.8     21.570   21.037 ~ 2 0
35 FBW J024015.9-342844 RR* 02 40 15.91 -34 28 43.9     21.442   20.998 ~ 2 0
36 FBW J024016.0-342202 RR* 02 40 16.14 -34 22 01.6     21.284   20.752 ~ 2 0
37 FBW J024016.6-342729 RR* 02 40 16.67 -34 27 27.5     21.372   20.837 ~ 2 0
38 DES J024017.65-342158.8 RR* 02 40 17.69 -34 21 57.2     21.318   20.745 ~ 3 0
39 DES J024019.64-343514.3 RR* 02 40 19.71 -34 35 15.2     21.454   20.947 ~ 3 0
40 DES J024019.67-343431.0 RR* 02 40 19.73 -34 34 31.9     21.332   20.886 ~ 4 0
41 [WMO2009] For-2041 RR* 02 40 20.8487597994 -34 24 34.436309661   20.779 19.46 18.914 18.33 ~ 6 0
42 DES J024021.60-343038.0 RR* 02 40 21.6309349608 -34 30 38.126184264     21.025   20.510 ~ 3 0
43 FBW J024023.3-342627 RR* 02 40 23.37 -34 26 26.3     21.415   21.101 ~ 2 0
44 FBW J024023.5-343245 RR* 02 40 23.66 -34 32 45.5     21.355   20.976 ~ 2 0
45 FBW J024023.7-343509 RR* 02 40 23.87 -34 35 10.3     21.149   20.549 ~ 2 0
46 FBW J024024.0-342145 RR* 02 40 24.0907678080 -34 21 45.506628792     21.438   20.875 ~ 2 0
47 DES J024025.10-342835.0 RR* 02 40 25.06 -34 28 33.3     21.461   20.910 ~ 3 0
48 FBW J024025.5-342157 RR* 02 40 25.60 -34 21 55.8     21.303   20.700 ~ 2 0
49 FBW J024026.3-342215 RR* 02 40 26.36 -34 22 13.7     21.399   20.923 ~ 2 0
50 DES J024028.81-342215.3 RR* 02 40 28.8294327576 -34 22 15.385141272     21.496   20.963 ~ 3 0
51 DES J024029.53-342351.9 RR* 02 40 29.53 -34 23 50.8     21.292   20.739 ~ 3 0
52 FBW J024029.5-343428 RR* 02 40 29.59 -34 34 29.2     21.252   20.666 ~ 2 0
53 FBW J024032.5-342301 RR* 02 40 32.56 -34 22 59.8     21.454   21.202 ~ 3 0
54 DES J024032.80-343229.2 RR* 02 40 32.87 -34 32 30.1     21.152   20.663 ~ 3 0
55 FBW J024033.1-343446 RR* 02 40 33.1128938352 -34 34 46.615923120     21.153   20.655 ~ 2 0
56 FBW J024033.3-343131 RR* 02 40 33.44 -34 31 32.9     21.446   20.810 ~ 2 0
57 DES J024033.52-342557.4 RR* 02 40 33.49 -34 25 56.1     21.496   20.839 ~ 3 0
58 FBW J024033.9-343534 RR* 02 40 33.97 -34 35 34.8     21.418   20.990 ~ 2 0
59 DES J024034.34-343421.6 RR* 02 40 34.3424674296 -34 34 21.678396564     21.520   21.087 ~ 3 0
60 FBW J024035.1-342227 RR* 02 40 35.16 -34 22 26.7     21.339   20.898 ~ 2 0
61 FBW J024035.3-342408 RR* 02 40 35.41 -34 24 07.5     21.344   20.821 ~ 2 0
62 DES J024036.50-342547.8 RR* 02 40 36.47 -34 25 46.5     21.348   20.895 ~ 3 0
63 DES J024037.11-342311.1 RR* 02 40 37.10 -34 23 09.9     21.418   20.902 ~ 3 0
64 DES J024037.31-343505.2 RR* 02 40 37.35 -34 35 05.9     21.324   20.813 ~ 4 0
65 DES J024038.15-342244.3 RR* 02 40 38.15 -34 22 43.2     21.445   20.897 ~ 3 0
66 DES J024039.13-342722.1 RR* 02 40 39.08 -34 27 20.8     21.574   21.293 ~ 3 0
67 DES J024039.75-342402.4 RR* 02 40 39.76 -34 24 01.1     21.189   20.764 ~ 3 0
68 FBW J024040.0-342545 RR* 02 40 39.99 -34 25 45.1     21.471   21.043 ~ 2 0
69 FBW J024040.0-343323 RR* 02 40 40.13 -34 33 24.7     21.361   20.843 ~ 2 0
70 DES J024040.13-343051.4 RR* 02 40 40.21 -34 30 52.5     21.116   20.650 ~ 3 0
71 FBW J024041.1-343721 RR* 02 40 41.1640603056 -34 37 21.171196200     21.347   20.724 ~ 3 0
72 FBW J024042.1-343701 RR* 02 40 42.1765548600 -34 37 01.668298476     21.349   20.836 ~ 2 0
73 FBW J024043.6-343013 RR* 02 40 43.71 -34 30 14.6     21.469   21.024 ~ 2 0
74 DES J024044.06-343728.3 RR* 02 40 44.07 -34 37 29.1     21.260   20.735 ~ 3 0
75 FBW J024045.9-343159 RR* 02 40 45.98 -34 32 00.4     21.470   20.802 ~ 2 0
76 DES J024046.21-343648.9 RR* 02 40 46.2060081072 -34 36 48.986845200     21.446   21.012 ~ 4 0
77 FBW J024047.3-343145 RR* 02 40 47.45 -34 31 46.1     21.468   21.003 ~ 2 0
78 FBW J024050.8-343615 RR* 02 40 50.84 -34 36 16.8     21.281   20.803 ~ 2 0
79 FBW J024051.7-343234 RR* 02 40 51.77 -34 32 35.4     21.289   20.742 ~ 2 0
80 DES J024052.24-343137.3 RR* 02 40 52.30 -34 31 38.4     21.433   21.036 ~ 3 0
81 DES J024053.42-343013.0 RR* 02 40 53.49 -34 30 14.3     21.428   20.914 ~ 3 0
82 FBW J024053.5-343456 RR* 02 40 53.57 -34 34 58.0     21.358   20.740 ~ 2 0
83 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
84 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
85 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
86 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
87 V* RR Lyr RR* 19 25 27.9129605304 +42 47 03.693258204   7.36   7.6   kA3hF0 951 0
88 NAME Local Group GrG ~ ~           ~ 9325 0

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