2014MNRAS.445L..89M

Query : 2014MNRAS.445L..89M

2014MNRAS.445L..89M - Mon. Not. R. Astron. Soc., 445, L89-L93 (2014/November-3)

Accretion in action: phase space coherence of stellar debris and globular clusters in Andromeda's South-West Cloud.

MacKEY A.D., LEWIS G.F., COLLINS M.L.M., BATE N.F., IBATA R.A., MARTIN N.F., CHAPMAN S., CONN A., ELAHI P., FERGUSON A.M.N., HUXOR A., IRWIN M., McCONNACHIE A., McMONIGAL B., PENARRUBIA J. and VELJANOSKI J.

Abstract (from CDS):

A central tenet of the current cosmological paradigm is that galaxies grow over time through the accretion of smaller systems. Here, we present new kinematic measurements near the centre of one of the densest pronounced substructures, the South-West Cloud, in the outer halo of our nearest giant neighbour, the Andromeda galaxy. These observations reveal that the kinematic properties of this region of the South-West Cloud are consistent with those of PA-8, a globular cluster previously shown to be co-spatial with the stellar substructure. In this sense, the situation is reminiscent of the handful of globular clusters that sit near the heart of the Sagittarius dwarf galaxy, a system that is currently being accreted into the Milky Way, confirming that accretion deposits not only stars but also globular clusters into the haloes of large galaxies.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): galaxies: evolution - galaxies: haloes - galaxies: individual: M31 - galaxies: kinematics and dynamics - galaxies: star clusters: general

Simbad objects: 9

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Number of rows : 9
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 PA-7 GlC 00 10 51.350 +39 35 58.55           ~ 14 0
2 NAME PA-8 GlC 00 12 52.450 +38 17 47.86           ~ 14 0
3 NAME M31 SW Cloud St* 00 13 49.77 +37 44 54.9           ~ 12 0
4 And XIX G 00 19 32.10 +35 02 37.1     15.6     ~ 168 0
5 NAME PA-14 GlC 00 20 33.8910473568 +36 39 34.432123392           ~ 13 0
6 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
7 NAME M31-EC4 GlC 00 58 15.42 +38 03 02.0     18.84   17.77 ~ 27 0
8 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
9 NAME M31 Stream C St* ~ ~           ~ 16 1

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