Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21331704h&link_type=abstract
American Astronomical Society, AAS Meeting #213, #317.04; Bulletin of the American Astronomical Society, Vol. 41, p.295
Astronomy and Astrophysics
Astronomy
Scientific paper
M32 is a satellite of the Andromeda (M31) galaxy and our nearest example of the very rare and enigmatic compact elliptical (cE) galaxy type. The outer isophotes of M32 have long been known to be distorted as a result of its tidal interaction with M31. We present new spectroscopic observations of M32 with the DEIMOS instrument on the Keck II telescope. These data are used to study the internal kinematics of M32 in order to understand its interaction with M31. The task is made challenging by the fact that M32 is projected against the bright/complicated inner regions of M31. Long-slit integrated light spectroscopy is used to measure the rotation curve and velocity dispersion profile of M32 out to a radius of about 1 arcmin. Beyond this radius, we present constraints based on multislit spectroscopy of resolved stars. The velocity distributions from the latter data set reveal a distinct M32 component. A by-product of our M32 study, is the characterization of the kinematics of the underlying M31 disk and inner spheroid.
This research is supported by the National Science Foundation, NASA and the Lawrence Scholars Program.
Geha Marla
Guhathakurta Puraga
Howley Kirsten
Kalirai Jason
Kirby Emma
No associations
LandOfFree
Stellar Kinematics in the Region of M32 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Stellar Kinematics in the Region of M32, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar Kinematics in the Region of M32 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1697708