2007A&A...462..101B

Query : 2007A&A...462..101B

2007A&A...462..101B - Astronomy and Astrophysics, volume 462, 101-106 (2007/1-4)

The proper motion of the Local Group galaxy IC 10.

BRUNTHALER A., REID M.J., FALCKE H., HENKEL C. and MENTEN K.M.

Abstract (from CDS):

We have measured the proper motion of the Local Group galaxy IC10 with the Very Long Baseline Array by measuring the position of an H2O maser relative to two background quasars over 4.3 years. After correction for the rotation of the Milky Way and IC10, we obtain a motion of -39±9µas/yr toward the East and 31±8µas/yr toward the North. This corresponds to a total space velocity of 215 ±42km/s relative to the Milky Way for an assumed distance of 660±66kpc. Assuming that IC10 and M33, for which also a proper motion measurement exists, are bound to M31, we calculate a lower limit for the mass of M31 of 7.5x1011M☉.

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Journal keyword(s): astrometry - galaxies: Local Group - galaxies: individual: IC10 - galaxies: kinematics and dynamics

Simbad objects: 25

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Number of rows : 25
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME IC 10 NW MoC 00 20 17.7 +59 18 44           ~ 8 0
2 IC 10 G 00 20 25.50 +59 17 17.0   13.6 9.5     ~ 1119 1
3 [CPF88] 001744.3+590036.0 Mas 00 20 26.962 +59 17 28.85           ~ 7 0
4 NAME IC 10 SE MoC 00 20 28.4 +59 17 23           ~ 8 0
5 NVSS J002108+591132 Rad 00 21 08.74 +59 11 32.0           ~ 4 0
6 ICRF J002703.2+595852 BLL 00 27 03.28617584 +59 58 52.9595753           ~ 18 0
7 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12660 1
8 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11162 1
9 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1361 4
10 IC 133 HII 01 33 15.9 +30 53 02     12.2     ~ 86 0
11 BCLMP 623 HII 01 33 15.9 +30 53 02     12.2     ~ 87 0
12 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5844 1
13 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 1028 2
14 NAME Fornax Dwarf Spheroidal G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1745 1
15 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7076 0
16 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17454 0
17 NAME Carina dSph G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1126 0
18 NAME CMa Dwarf Galaxy G 07 12.6 -27 40     -0.1     ~ 199 1
19 NAME UMi Galaxy G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1362 0
20 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14433 0
21 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4395 3
22 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2267 1
23 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2192 2
24 W 49 SFR 19 10 20 +09 07.7           ~ 576 1
25 NAME Local Group GrG ~ ~           ~ 8406 0

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