Halo Mass Dynamics of M31 Using Planetary Nebulae Velocities

Details Halo Mass Dynamics of M31 Using Planetary Nebulae Velocities Halo Mass Dynamics of M31 Using Planetary Nebulae Velocities

Mar 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002sgdh.conf..158h&link_type=abstract

THE SHAPES OF GALAXIES AND THEIR DARK HALOS. Proceedings of the Yale Cosmology Workshop. Held 28-30 May 2001 in New Haven, Conne

Computer Science

Scientific paper

We present an investigation of the halo dynamics of M31 using planetary nebulae (PNe) velocities. We describe our current velocity data, and imaging to enable spectroscopy to be performed deeper into the galaxy halo (~ 20 kpc). In the future we will measure the total mass, mass distribution and velocity anisotropy as a function of radius. We plan to compare kinematics of the globular cluster and PNe populations to test if both trace similar stellar populations.

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