Tidal Interaction of M32 and NGC 205 with M31: Surface Photometry and Numerical Simulations*

@article{Choi2002TidalIO,
  title={Tidal Interaction of M32 and NGC 205 with M31: Surface Photometry and Numerical Simulations*},
  author={Philip Ilho Choi and Puragra Guhathakurta and Kathryn V. Johnston},
  journal={The Astronomical Journal},
  year={2002},
  volume={124},
  pages={310-331}
}
We investigate the interaction history of the M31 subgroup by comparing surface photometry of two of its satellites, M32 and NGC 205, with N-body simulations of satellite destruction. The recent discovery of a giant stream in the outer halo of M31, apparently pointed in the direction of M32 and NGC 205, makes such an investigation particularly relevant. The observational component of this study is based on 17 × 5° B- and I-band CCD mosaic images centered on M31 and covering both satellites… 
The tidal trail of NGC 205
TLDR
An arc-like overdensity of blue, presumably metal-poor, red giant branch stars in the north-west quadrant of M31 is identified and it is postulated that the arc is part of a stellar stream, the progenitor of which is NGC 205.
Internal Stellar Kinematics of M32 from the SPLASH Survey: Dark Halo Constraints and the Formation of Compact Elliptical Galaxies
As part of the SPLASH survey of the Andromeda galaxy (M31) and its neighbors, we have obtained Keck/DEIMOS spectra of the compact elliptical (cE) satellite M32. This is the first resolved-star
Stellar Populations in the Outer Reaches of M31 and M32 from WFPC2 Photometry
Hubble Space Telescope Wide Field Planetary Camera 2 photometry in a field 7 effective radii from the nucleus of M32 and a comparison field in the outer disk of M31, already examined for the presence
The Andromeda project - I. Deep HST-WFPC2 V, I photometry of 16 fields toward the disk and the halo of the M 31 galaxy. Probing the stellar content and metallicity distribution
We have obtained HST-WFPC2 F555W and F814W photometry for 16 fields in the vicinity of the luminous nearby spiral galaxy M 31, sampling the stellar content of the disk and the halo at different
Photometry and the Metallicity Distribution of the Outer Halo of M31. II. The 30 Kiloparsec Field
We present the results of a wide-field (VI) photometric study of the red giant branch (RGB) stars in the outer halo of M31, in a field located 30–35 kpc from the center of the galaxy along the
Global Properties of M31's Stellar Halo from the SPLASH Survey. I. Surface Brightness Profile
We present the surface brightness profile of M31's stellar halo out to a projected radius of 175 kpc. The surface brightness estimates are based on confirmed samples of M31 red giant branch stars
Deep Photometry in a Remote M31 Major-Axis Field Near G1
We present photometry from Hubble Space Telescope (HST) Wide Field Planetary Camera 2 parallel imagery of a remote M31 field at a projected distance of ~34 kpc from the nucleus near the southwest
Metallicity and Kinematics of M31’s Outer Stellar Halo from a Keck Spectroscopic Survey*
We present first results from a spectroscopic survey designed to examine the metallicity and kinematics of individual red giant branch stars in the outer halo of the Andromeda spiral galaxy (M31).
STRUCTURE AND POPULATION OF THE ANDROMEDA STELLAR HALO FROM A SUBARU/SUPRIME-CAM SURVEY
We present a photometric survey of the stellar halo of the nearest giant spiral galaxy, Andromeda (M31), using Suprime-Cam on the Subaru Telescope. A detailed analysis of VI color-magnitude diagrams
Signatures of the M31-M32 Galactic Collision
The unusual morphologies of the Andromeda spiral galaxy (M31) and its dwarf companion M32 have been characterized observationally in great detail. The two galaxies' apparent proximity suggests that
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