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Dynamics of the M31 Planetary Nebula System

Published online by Cambridge University Press:  30 March 2016

Xiaohui Hui
Xiaohui Hui*
Affiliation:
Center for Space Research, Massachusetts Institute of Technology, USA

Abstract

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We made a spatially complete and kinematically unbiased survey of M 31 for planetary nebulae (PNs). The survey covers a projected area of 20 by 40 kpc centered on M 31. Subsequently, we measured the radial velocities of over 800 PNs using the Hydra multi-object spectrograph on the KPNO 4-m telescope. With this large dataset, a detailed dynamical study of the stellar disk, bulge and halo populations in M 31 is currently underway. We are focusing on the dynamical transition between the disk, bulge and halo, and a comparison between the kinematics of the PNs and globular clusters.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 10: Highlights of Astronomy. As presented at the XXIInd General Assembly of the IAU, 1994 , 1995 , pp. 473 - 474
Copyright
Copyright © Kluwer 1995