2019MNRAS.489..763W

Query : 2019MNRAS.489..763W

2019MNRAS.489..763W - Mon. Not. R. Astron. Soc., 489, 763-770 (2019/October-2)

A rogues gallery of Andromeda's dwarf galaxies - II. Precise distances to 17 faint satellites.

WEISZ D.R., DOLPHIN A.E., MARTIN N.F., ALBERS S.M., COLLINS M.L.M., FERGUSON A.M.N., LEWIS G.F., MACKEY A.D., McCONNACHIE A., RICH R.M. and SKILLMAN E.D.

Abstract (from CDS):

We present new horizontal branch (HB) distance measurements to 17 of the faintest known M31 satellites (-6 <= MV <= -13) based on deep Hubble Space Telescope (HST) imaging. The colour-magnitude diagrams extend ∼1-2 mag below the HB, which provides for well-defined HBs, even for faint galaxies in which the tip of the red giant branch (TRGB) is sparsely populated. We determine distances across the sample to an average precision of 4 per cent (∼30 kpc at 800 kpc). We find that the majority of these galaxies are in good agreement, though slightly farther (0.1-0.2 mag) when compared to recent ground-based TRGB distances. Two galaxies (And IX and And XVII) have discrepant HST and ground-based distances by ∼0.3 mag (∼150 kpc), which may be due to contamination from Milky Way foreground stars and/or M31 halo stars in sparsely populated TRGB regions. We use the new distances to update the luminosities and structural parameters for these 17 M31 satellites. The new distances do not substantially change the spatial configuration of the M31 satellite system. We comment on future prospects for precise and accurate HB distances for faint galaxies in the Local Group and beyond.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: distances and redshifts - galaxies: dwarf - Local Group

Simbad objects: 28

goto Full paper

goto View the references in ADS

Number of rows : 28
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 Andromeda XVIII G 00 02 14.5 +45 05 20     16.0     ~ 129 0
2 NAME Andromeda XX G 00 07 30.70 +35 07 56.4     18.2     ~ 77 0
3 NAME Andromeda XXVI G 00 23 45.6 +47 54 58     17.3     ~ 76 0
4 NAME Andromeda XXV G 00 30 08.9 +46 51 07     14.8     ~ 120 0
5 NAME Andromeda III G 00 35 33.8 +36 29 52     14.4     ~ 309 0
6 NAME Cassiopeia III G 00 35 59.4 +51 33 35           ~ 59 0
7 NAME Andromeda XXX G 00 36 34.90 +49 38 48.0           ~ 59 0
8 NAME Andromeda XVII G 00 37 07.0 +44 19 20     15.8     ~ 101 0
9 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
10 NAME Andromeda I G 00 45 39.8 +38 02 28   13.9 12.7     ~ 355 0
11 NAME Andromeda XI G 00 46 20.0 +33 48 05     17.5     ~ 130 0
12 NAME Andromeda XII G 00 47 27.0 +34 22 29     18.3     ~ 124 0
13 NAME Andromeda XIV G 00 51 35.0 +29 41 49     15.9     ~ 132 0
14 NAME Andromeda XIII G 00 51 51.0 +33 00 16     18.1     ~ 128 0
15 NAME Andromeda IX G 00 52 53.0 +43 11 45     16.3     ~ 176 1
16 NAME Pisces V G 00 59 29.8 +32 22 36     14.4     ~ 149 0
17 NAME Andromeda X G 01 06 33.70 +44 48 15.8     16.6     ~ 125 1
18 NAME Andromeda XV G 01 14 18.7 +38 07 03     14.6     ~ 123 0
19 NAME Andromeda II G 01 16 29.8 +33 25 09     11.7     ~ 402 0
20 NAME Andromeda XXIV G 01 18 30.0 +46 21 58     16.3     ~ 64 0
21 NAME Andromeda XXII G 01 27 40.0 +28 05 25     18.0     ~ 95 0
22 NAME Andromeda XXIII G 01 29 21.8 +38 43 08     14.2     ~ 88 0
23 NAME Andromeda XXXIII G 03 01 23.6 +40 59 18           ~ 43 0
24 NAME Andromeda XXVIII G 22 32 41.20 +31 12 58.2     15.6     ~ 88 0
25 NAME Lacerta I G 22 58 16.3 +41 17 28           ~ 53 0
26 NAME Andromeda XXI G 23 54 47.7 +42 28 15     14.8     ~ 117 0
27 NAME Andromeda XXIX G 23 58 55.6 +30 45 20     16.0     ~ 61 0
28 NAME Local Group GrG ~ ~           ~ 9325 0

To bookmark this query, right click on this link: simbad:objects in 2019MNRAS.489..763W and select 'bookmark this link' or equivalent in the popup menu