Taking measure of the Andromeda halo: a kinematic analysis of the giant stream surrounding M31

ABSTRACT We present a spectroscopic survey of the giant stellar stream found in the halo of the Andromeda galaxy. Taken with the DEIMOS multi‐object spectrograph on the Keck2 telescope, these data display a narrow velocity dispersion of 11 ± 3 km s−1, with a steady radial velocity gradient of 245 km...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2004-06, Vol.351 (1), p.117-124
Hauptverfasser:	Ibata, R., Chapman, S., Ferguson, A. M. N., Irwin, M., Lewis, G., McConnachie, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Earth, ocean, space Exact sciences and technology galaxies: individual: M31 galaxies: kinematics and dynamics Local group. Magellanic clouds Spiral galaxies (m31 and 001m33) Stellar systems. Galactic and extragalactic objects and systems. The universe
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