2020ApJ...889..179G

Query : 2020ApJ...889..179G

2020ApJ...889..179G - Astrophys. J., 889, 179-179 (2020/February-1)

Empirical calibration of the reddening maps in the Magellanic Clouds.

GORSKI M., ZGIRSKI B., PIETRZYNSKI G., GIEREN W., WIELGORSKI P., GRACZYK D., KUDRITZKI R.-P., PILECKI B., NARLOCH W., KARCZMAREK P., SUCHOMSKA K. and TAORMINA M.

Abstract (from CDS):

We present reddening maps of the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC), based on color measurements of the red clump. Reddening values of our maps were obtained by calculating the difference of the observed and intrinsic color of the red clump in both galaxies. To obtain the intrinsic color of the red clump, we used reddenings obtained from late-type eclipsing binary systems, measurements for blue supergiants and reddenings derived from Stromgren photometry of B-type stars. We obtained intrinsic color of the red clump (V - I)0 = 0.838 ± 0.034 mag in the LMC, and (V - I)0 = 0.814 ± 0.034 mag in the SMC. We prepared our map with 3' resolution, covering the central part of the LMC and SMC. The mean value of the reddening is E(B - V)LMC = 0.127 mag and E(B - V)SMC = 0.084 mag for the LMC and SMC, respectively. The systematic uncertainty of the average reddening value assigned to each field of our maps is 0.013 mag for both Magellanic Clouds. Our reddening values are on average higher by 0.061 mag for the LMC and 0.054 mag for the SMC, compared with the maps of Haschke et al. We also compared our values with different types of reddening tracers. Cepheids, RR Lyrae stars, early-type eclipsing binaries, and other reddening estimations based on the red clump color on average show reddenings consistent with our map to within a few hundredths of magnitude.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Interstellar dust extinction - Magellanic Clouds - Reddened stars

Simbad objects: 98

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Number of rows : 98
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 OGLE SMC130.5 4296 EB* 00 33 47.9299552248 -73 04 28.056762084 18.39 18.09 16.99   15.55 ~ 16 0
2 OGLE J004402.68-725422.5 EB* 00 44 02.6740281360 -72 54 22.960574820 18.63 17.85 16.65   15.45 ~ 15 0
3 SV* HV 1433 EB* 00 47 11.1550404168 -73 41 19.862253168     15.506   15.621 ~ 9 0
4 BBB SMC 227 sg* 00 47 29.2159573584 -73 01 37.362282132 12.68 12.33 12.14   11.68 A0Ia 26 0
5 BBB SMC 259 s*b 00 47 38.7409708152 -73 07 48.851948496   12.17 12.24     B3Ia 43 0
6 OGLE J004822.69-724848.6 EB* 00 48 22.6937097888 -72 48 48.976132716   17.94 17.17 16.81 16.22 ~ 18 0
7 SV* HV 11284 EB* 00 49 43.0820547360 -72 51 09.494795124 14.20 15.13 15.17 15.30 15.35 B1.5+B2 15 0
8 SK 31 s*b 00 49 51.2735728512 -72 55 45.253625124   11.16 11.16     B2Ia 46 0
9 HD 5030 s*b 00 50 31.5814458672 -73 28 42.553178652   11.29 11.18     B9Ia+ 69 0
10 SK 45 sg* 00 51 24.5968978056 -72 22 58.594918764 9.50 11.4 11.47   11.00 A0Ia 42 0
11 AzV 105 * 00 51 41.2390446624 -72 28 06.692696472   12.25 12.26     A0e 17 0
12 SK 49 sg* 00 51 51.9849270168 -72 44 13.526622960 12.18 12.21 12.13     A0Ia 28 0
13 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
14 HD 5277 sg* 00 52 51.2367585408 -73 06 53.641834488 10.12 11.08 10.95   10.75 A0Ia 62 0
15 HD 5291 s*b 00 53 04.8881540232 -72 38 00.139202232 10.26 10.89 10.85     B8Ia 59 0
16 SK 57 s*b 00 53 59.3747012712 -72 45 59.656787964 11.443 12.294 12.316   12.28 B2.5Ia 32 0
17 SK 69 s*b 00 58 07.9057887336 -72 38 30.488438724 11.86 12.21 10.47   11.99 B8Ia 28 0
18 SK 71 sg* 00 58 23.2121027328 -72 21 35.073937044 12.003 12.444 12.326   12.07 A3I 24 0
19 SK 74 s*b 00 58 41.2290524928 -72 26 15.433261440   11.61 11.51     B8I 34 0
20 OGLE SMC-SC8 201484 EB* 01 00 18.0420727800 -72 24 07.781696460   16.07 15.21 14.69 14.21 ~ 19 0
21 SK 98 sg* 01 01 16.9978346544 -72 17 31.136546040   11.44 11.42     A0Ia 43 0
22 SK 99 sg* 01 01 27.4370116656 -72 07 06.109923252   12.23 12.17     A2Ib 19 0
23 RMC 23 s*b 01 02 09.8059581384 -72 00 23.106153852   12.07 12.10     B8Iab-Ia 23 0
24 RMC 24 sg* 01 02 12.3192840720 -72 02 51.509442984   12.50 12.47     A0Iab 22 0
25 CPD-72 77 sg* 01 02 49.6101049512 -72 10 14.479892112 10.54 10.98 10.90   10.88 A0Ia 51 0
26 SK 110 sg* 01 03 43.0423986960 -72 15 30.014437428 12.13 12.62 12.60   12.504 A0Ib 23 0
27 RMC 36 s*b 01 04 49.3494336384 -72 06 21.746153556 10.57 11.34 11.36     B3Ia 58 0
28 RMC 37 s*b 01 04 52.9090700064 -72 08 36.784118328 10.75 11.30 11.23     B9Ia 45 0
29 SK 121 s*b 01 05 27.4776868728 -72 48 15.103596384   11.5 11.4     B8Ia 33 0
30 SK 125 sg* 01 05 57.9400508928 -71 19 13.614191544   12.60 12.57 12.39   A3Ib 16 0
31 SK 126 sg* 01 06 08.9897748144 -72 24 08.894825964   12.36 12.37     A0Iab 13 0
32 HD 7099 s*b 01 09 03.9542485824 -72 32 17.627859960   10.89 10.9     B2.5Ia 72 0
33 SK 146 sg* 01 11 43.1633069856 -72 07 27.515157384   12.19 12.10     A2I 29 0
34 SK 168 s*b 01 21 48.2562501672 -72 45 59.237665992   11.7 11.7     B9Ia 34 0
35 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
36 HD 268612 * 04 47 33.2251006320 -69 14 32.870031360   12.71 12.53 12.33   A3I 22 0
37 OGLE LMC-ECL-1866 EB* 04 52 15.2769484488 -68 19 10.222622148     15.986 15.453 15.010 ~ 21 0
38 HD 268623 s*b 04 52 19.0947780648 -66 43 53.320001052 10.709 11.51 11.61   11.482 B2Ia 48 0
39 HD 268653 s*b 04 53 30.0339060432 -66 55 28.189420104   10.68 10.76 10.71 10.67 B3Ia 45 0
40 HD 268758 sg* 04 53 59.5255335288 -69 22 42.587996664   12.65 12.60 12.47   A1Iab 21 0
41 HD 268685 s*b 04 54 31.8862673064 -67 15 24.584925456 10.616 11.376 11.541   11.599 B1Ia 55 0
42 HD 268719 sg* 04 55 21.6044106408 -67 26 11.254874424   11.2 11.3     A1Iak 31 0
43 SK -69 39a Pe* 04 55 40.4523656856 -69 26 41.002117764   12.45 12.34 12.24   A0I 19 0
44 OGLE LMC-ECL-3160 LP* 04 55 51.4783969128 -69 13 47.925605388         15.869 ~ 27 0
45 HD 268809 s*b 04 56 10.4576405688 -69 15 38.298995208 10.762 11.866 11.964   12.031 B0.7Ia 45 0
46 HD 268732 s*b 04 57 04.4395141656 -66 34 38.571040380 10.652 11.494 11.587     BC1Iab 60 0
47 SK -67 28 Pu* 04 58 39.2402576592 -67 11 18.643364988 11.340 12.082 12.269   12.228 B0.7Ia 23 0
48 CPD-67 381 Pu* 05 01 22.5825475560 -67 20 09.986762652 11.042 11.93 12.42   12.024 OB 15 0
49 2MASS J05015175-6912488 LP* 05 01 51.7604915208 -69 12 48.801169656         15.456 ~ 9 0
50 SK -70 45 * 05 02 17.8072426944 -70 26 56.756052456   12.54 12.53     A0Iab 10 0
51 SV* HV 2274 EB* 05 02 40.7809489608 -68 24 21.495338172 13.298 13.984 14.127 14.192 14.390 ~ 79 0
52 HD 268907 s*b 05 03 08.8162586160 -66 57 34.851132288 10.023 10.511 10.6     B5Ia 62 0
53 2MASS J05043288-6920509 LP* 05 04 32.8759490616 -69 20 51.030442032         14.659 ~ 24 0
54 NGC 1835 Cl* 05 05 09.210 -69 24 20.96   11.314 10.596     ~ 173 0
55 CPD-68 312 * 05 05 15.1972545600 -68 02 14.146413504 10.810 11.721 11.71   11.725 OB 27 0
56 SK -68 41 * 05 05 27.1146438696 -68 10 02.642123460 10.855 11.868 12.01   12.086 B0.7Ia 59 0
57 SK -68 45 * 05 06 07.2869246304 -68 07 06.160310040 10.782 11.92 12.007   12.136 OB 15 0
58 HD 269074 * 05 06 16.0418710536 -70 29 35.671642404 10.291 11.0 11.1   11.443 OB 25 0
59 NGC 1850 Cl* 05 08 50.190 -68 45 35.65   8.84 8.96     ~ 298 1
60 OGLE J051019.64-685812.3 EB* 05 10 19.65 -68 58 12.0     16.673   15.715 ~ 31 0
61 2MASS J05114945-6705451 LP* 05 11 49.4660106384 -67 05 45.128063004       15.70 15.130 ~ 22 0
62 2MASS J05115174-6931010 LP* 05 11 51.7830315528 -69 31 01.137728172       16.56 16.070 ~ 10 0
63 2MASS J05140190-6841184 LP* 05 14 01.908 -68 41 18.41       16.04 15.377 ~ 21 0
64 2MASS J05140595-6915568 LP* 05 14 05.9513254032 -69 15 56.782018224           ~ 21 1
65 HD 269238 * 05 14 31.5729848784 -69 13 53.382785664 10.388 11.013 11.053 10.86 10.916 B6I 32 0
66 HD 269311 * 05 17 17.5456016184 -69 46 44.094249480 10.211 11.999 11.428   11.474 OB 21 0
67 OGLE LMC-SC7 333638 EB* 05 19 12.905 -69 06 45.45       16.31 16.048 ~ 9 0
68 2MASS J05194538-6944384 LP* 05 19 45.383 -69 44 38.44       16.66 15.974 ~ 10 0
69 2MASS J05195369-6917204 LP* 05 19 53.696 -69 17 20.43         16.050 ~ 12 0
70 OGLE LMC-ECL-13360 EB* 05 20 59.4573624528 -70 07 35.290203348     15.818   14.800 ~ 9 0
71 HD 269414 sg* 05 21 22.3977960696 -69 27 08.072668692   10.80 10.71 10.84   A1Ia 22 0
72 OGLE LMC-SC21 116240 EB* 05 21 23.3454398616 -70 33 00.003463488     17.356 16.92 16.386 ~ 10 0
73 NAME LMC Bar PoG 05 22 08 -69 23.5           ~ 343 0
74 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
75 2MASS J05252555-6933044 LP* 05 25 25.5462989027 -69 33 04.541773674       16.40 15.620 ~ 27 0
76 W61 17-35 * 05 28 16.1756415288 -68 51 45.582477912   11.64 11.71     OB 21 0
77 SV* HV 982 EB* 05 29 52.3071229680 -69 09 22.559372640   14.76 14.648 14.99 14.761 ~ 48 0
78 HD 269660 s*b 05 30 47.7753524136 -71 04 02.325450144 10.281 11.15 11.19   10.767 B2Ia 64 0
79 HD 269661 sg* 05 30 50.0811353208 -69 31 29.399422332 9.95 10.47 10.34 10.16 10.03 A0Ia0e: 61 0
80 HD 269668 * 05 31 00.8452572672 -68 53 57.095854332 11.919 10.161 12.01   10.592 OB 26 0
81 OGLE LMC-ECL-18365 EB* 05 31 49.5498405240 -71 13 28.316188164     16.664 15.91 15.541 ~ 9 0
82 2MASS J05325304-6859123 LP* 05 32 53.0670286320 -68 59 12.242782860         16.199 ~ 13 0
83 W61 28-22 EB* 05 34 48.1069861728 -69 42 36.503825328   12.81 12.97 13.06 13.04 O7III 25 0
84 CPD-69 419 s*b 05 36 16.4168956392 -69 31 26.976407988 11.419 12.279 12.19   12.329 B0.7Ia 12 0
85 CPD-69 436 s*b 05 37 09.1787926949 -69 20 19.505185054   12.182 12.139 12.338   BC1.5Ia 32 0
86 HD 269900 * 05 37 41.0147529864 -67 43 16.568563296 8.716 11.44 11.475   9.800 OB 31 0
87 CPD-69 445 s*b 05 38 01.2704118024 -69 22 14.049636204 11.243 12.122 12.032   12.107 B1Ia 21 0
88 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
89 WOH G 450 LP* 05 39 42.5621242704 -64 48 38.034575388   15.241 13.335 12.922   M0Ba? 6 0
90 2MASS J05395119-6753005 LP* 05 39 51.1936404480 -67 53 00.599763876       16.34 15.778 ~ 8 0
91 HD 269997 s*b 05 41 20.3933761824 -69 05 07.273296276   11.36 11.20     B2.5Ia 62 0
92 HD 269992 s*b 05 41 27.6753953664 -69 48 03.751627752   11.27 11.22     B2.5Ia 57 0
93 HD 269993 s*b 05 41 36.7920794640 -70 00 52.617185028 10.812 11.872 11.516   11.965 B0.7Ia 22 0
94 SP77 52-47a * 05 43 42.1140867096 -66 36 29.359243836   15.203 13.397 12.997   M0 5 0
95 HD 270086 sg* 05 45 16.6166875920 -68 59 51.972542376   10.45 10.19 10.22 10.08 A1Ia0 68 0
96 OGLE LMC-ECL-24887 EB* 05 50 39.0329116632 -69 14 20.617707228     17.677   16.559 ~ 7 0
97 HD 270196 s*b 05 51 20.7793116768 -70 17 09.299979960 10.038 11.490 11.6   11.646 B1.5Ia 59 0
98 OGLE LMC-ECL-25658 EB* 06 01 58.7793442320 -68 30 55.138566096     16.995 16.53 15.870 G8III+G9III 18 0

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