Browsing Chapman, Scott by Author "Koch, A."

Now showing items 1-3 of 3

  • Kinematic and Chemical constraints on the formation of M31's inner and outer halo 

    Koch, A., R. M. Rich, D. B. Reitzel, N. F. Martin, et al. 2007. "Kinematic and Chemical constraints on the formation of M31's inner and outer halo." The Astrophysical Journal 689 (2):958
    The halo of M31 shows a wealth of substructures that are consistent with satellite accretion. Here we report on kinematic and abundance results from Keck/DEIMOS spectroscopy in the calcium triplet region of over 3500 red ...

  • The kinematic footprints of five stellar streams in Andromeda's halo 

    Chapman, S. C., R. Ibata, M. Irwin, A. Koch, et al. 2008. "The kinematic footprints of five stellar streams in Andromeda's halo." Monthly Notices of the Royal Astronomical Society 390(4): 1437
    (abridged) We present a spectroscopic analysis of five stellar streams (`A', `B', `Cr', `Cp' and `D') as well as the extended star cluster, EC4, which lies within streamC, all discovered in the halo of M31 from our ...

  • The kinematic identification of a thick stellar disc in M31 

    Collins, M. L. M., S. C. Chapman, R. A. Ibata, M. J. Irwin, et al. 2010. "The kinematic identification of a thick stellar disc in M31." Monthly Notices of the Royal Astronomical Society 413:1548.
    We present the first characterization of a thick disc component in the Andromeda galaxy (M31) using kinematic data from the DEIMOS multi-object spectrograph instrument on Keck II. Using 21 fields in the South West of the ...