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Table 2

Data for the currently known MW satellites.

Name α 2000 δ 2000 r helio l MW b MW r MW Ref. Δv Ref. L V Ref.
[h m s] [° m s] [kpc] [°] [°] [kpc] [kms-1] [km s-1] [kms-1]  [L

New:
Boo 14   00   05 +14   30   21 64 ± 2 357.9 76.5 61 2; 10; 28; 8 94.4 94.2  ±3.4 21 (2.6 ± 0.5) × 104 2; 18
Boo II 13   58   05 +12   51   36 45 ± 2 348.6 78.9 43 30; 31; 14 (9.2 ± 5.4) × 102 30; 18; 31
CVn 13   28   04 +33   33   27 214 ± 9 84.2 80.0 213 36; 8; 16; 17 64.8 69, 7  ±0.6 13; 29 (2.0 ± 0.3) × 105 36; 18
CVn II 12   57   10 +34   19   20 154 ± 5 129.4 81.3 155 25; 3; 12; 8 –97, 5 –93,2  ±1.2 29 (7.5 ± 3.1) × 103 25; 3; 18
CBe 12   26   59 +23   54   37 43 ± 2 202.2 75.5 44 3; 8; 23 47, 4 40, 4  ±0.9 29 (3.1 ± 1.1) × 103 3; 18; 22
Her 16   31   04 +12   47   24 135 ± 4 31.2 38.2 129 3; 7; 8; 1; 26 128, 6 140, 0  ±1.1 29; 1 (2.9 ± 0.7) × 104 3; 18; 26
Leo IV 11   32   58 –00   32   09 156 ± 5 261.1 56.3 156 3; 20 10, 6 –6, 0  ±1.4 29 (1.3 ± 0.3) × 104 3; 18; 27; 9
Leo V 11   31   09 +02   13   05 176 ± 10 257.9 58.3 176 4; 9 58, 5 42, 8  ±3.1 4 (6.4 ± 2.4) × 103 4; 9
Pis I 23   40   00 –00   18   00 80 ± 14 100.2 –57.8 80 32; 15 42, 1 58, 0 15
Pis II 22   58   31 +05   57   09 182 ± 36 84.1 –47.6 181 6  ~ 8.6 × 103 6
Seg I 10   07   04 +16   04   40 23 ± 2 206.2 39.5 28 3 94, 5 79, 3  ±1.3 11 (3.4 ± 2.7) × 102 3; 18
Seg II 02   19   16 +20   10   31 35 ± 2 157.0 –31.1 41 5 54, 8 67, 6  ±2.5 5 (8.6 ± 2.7) × 102 5
UMa 10   34   49 +51   55   48 100 ± 4 162.0 51.3 105 34; 29; 24 –6, 9 –0, 3  ±1.4 29 (1.4 ± 0.4) × 104 18
UMa II 08   51   30 +63   08   22 30 ± 5 159.7 30.4 37 35 –29, 0 –17, 1  ±1.9 29 (3.3 ± 1.0) × 103 35; 18; 22
Wil1 10   49   22 +51   03   10 41 ± 6 164.4 48.8 46 33; 8 (1.1 ± 0.6) × 103 33; 18

Classical:
Car 06   41   37 –50   58   00 101 ± 5 255.2 –21.7 103 19 22, 5 –4, 9  ±3 19 4.5 × 104 19
Dra 17   20   19 +57   54   48 82 ± 6 93.5 34.6 82 19 –112, 3 –87, 7  ±2 19 2.8 × 105 19
For 02   39   59 –34   27   00 138 ± 8 230.0 –63.4 140 19 –29,2 –40, 4  ±3 19 1.6 × 107 19
Leo I 10   08   27 +12   18   30 250 ± 30 224.7 48.6 254 19 179, 9 165, 4  ±2 19 4.9 × 106 19
Leo II 11   13   29 +22   09   12 205 ± 12 217.5 66.1 208 19 17, 0 9, 0  ±2 19 5.9 × 105 19
LMC 05   23   34 –69   45   24 49 ± 2 268.5 –33.4 48 19 143, 3 118, 6 19 2.1 × 109 37
SMC 00   52   44 –72   49   42 58 ± 2 291.6 –47.4 55 19 49, 6 32, 5 19 5.7 × 108 37
Sgr 18   55   03 –30   28   42 24 ± 2 9.4 –22.4 16 19 161, 1 164, 0  ±5 19 2.0 × 107 19
Scu 01   00   09 –33   42   30 79 ± 4 234.6 –81.9 79 19 77, 9 73, 8  ±3 19 2.4 × 106 19
Sex 10   13   03 –01   36   54 86 ± 4 237.8 40.8 89 19 76, 9 56, 4  ±3 19 5.4 × 105 19
UMi 15   09   11 +67   12   54 66 ± 3 114.2 43.2 68 19 –92, 9 –71, 7  ±2 19 3.1 × 105 19

Notes. Data for the MW satellites used for fitting the DoS. Seg 1 and 2 (marked in italics) are included in this list for reference, but they have not been included in the fitting because they appear to be diffuse star clusters (Niederste-Ostholt et al. 2009). The positions are given both in Heliocentric coordinates (right ascension α2000, declination δ2000, and Heliocentric distance rhelio for epoch J2000.0) and in Galactocentric coordinates assuming the Sun to have a distance of 8.5 kpc from the MW centre. lMW gives the Galactic longitude with 0° pointing from the Galactic centre to the Sun. bMW is the latitude as seen from the Galactic centre and rMW the radial distance from the centre of the MW. The coordinates were obtained using data from the references listed in the column labelled Ref., where more than one source is given, the distances to the satellites were obtained by error-weighted averaging over the available measurements. The satellite’s line-of-sight velocities with respect to the Galactic standard of rest (GSR) are calculated assuming the Sun to move into the direction l = 90°, b = 0° (in Heliocentric, Galactic coordinates) with a velocity of either 220 km s-1 () or 250 km-1 (). The measurement-uncertainties for the radial velocities reported in the respective papers (referred to in column Ref.) are reproduced in the column labelled Δv. Finally, LV gives the satellite luminosities in the photometric V-band; again uncertainty-weighted averages are quoted when more than one reference is given in column Ref. Data marked with † have measured proper motions, listed in Table 1 of Metz et al. (2008). : As no distance uncertainties for Pisces II are available in the literature, the error is estimated to be 20 percent of the distance.

References. 1: Adén et al. (2009a), 2: Belokurov et al. (2006), 3: Belokurov et al. (2007), 4: Belokurov et al. (2008), 5: Belokurov et al. (2009), 6: Belokurov et al. (2010), 7: Coleman et al. (2007b), 8: de Jong et al. (2008), 9: de Jong et al. (2010), 10: Dall’Ora et al. (2006), 11: Geha et al. (2009), 12: Greco et al. (2008), 13: Ibata et al. (2006), 14: Koch et al. (2009), 15: Kollmeier et al. (2009), 16: Kuehn et al. (2008), 17: Martin et al. (2008a), 18: Martin et al. (2008b), 19: Mateo (1998), 20: Moretti et al. (2009), 21: Muñoz et al. (2006), 22: Muñoz et al. (2010), 23: Musella et al. (2009), 24: Okamoto et al. (2008), 25: Sakamoto & Hasegawa (2006), 26: Sand et al. (2009), 27: Sand et al. (2010), 28: Siegel (2006), 29: Simon & Geha (2007), 30: Walsh et al. (2007), 31: Walsh et al. (2008), 32: Watkins et al. (2009), 33: Willman et al. (2005a), 34: Willman et al. (2005b), 35: Zucker et al. (2006a), 36: Zucker et al. (2006b), 37: van den Bergh (1999).

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