2003MNRAS.346L..62M

Query : 2003MNRAS.346L..62M

2003MNRAS.346L..62M - Mon. Not. R. Astron. Soc., 346, L62-L66 (2003/December-3)

Tracing the star stream through M31 using planetary nebula kinematics.

MERRETT H.R., KUIJKEN K., MERRIFIELD M.R., ROMANOWSKY A.J., DOUGLAS N.G., NAPOLITANO N.R., ARNABOLDI M., CAPACCIOLI M., FREEMAN K.C., GERHARD O., EVANS N.W., WILKINSON M.I., HALLIDAY C., BRIDGES T.J. and CARTER D.

Abstract (from CDS):

We present a possible orbit for the Southern Stream of stars in M31, which connects it to the Northern Spur. Support for this model comes from the dynamics of planetary nebulae (PNe) in the disc of M31: analysis of a new sample of 2611 PNe obtained using the Planetary Nebula Spectrograph reveals ∼20 objects with kinematics inconsistent with the normal components of the galaxy, but which lie at the right positions and velocities to connect the two photometric features via this orbit. The satellite galaxy M32 is coincident with the stream both in position and velocity, adding weight to the hypothesis that the stream comprises its tidal debris.

Abstract Copyright: 2003 RAS

Journal keyword(s): galaxies: individual: M31 - galaxies: interactions - galaxies: kinematics and dynamics - Local Group - galaxies: structure

Simbad objects: 4

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Number of rows : 4
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 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
2 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
3 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
4 NAME Local Group GrG ~ ~           ~ 9325 0

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