Browsing Chapman, Scott by Author "Rich, R. M."

Now showing items 1-7 of 7

  • The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets 

    Davis, M., P. Guhathakurta, N. Konidaris, J. A. Newman, et al. 2007. "The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets." The Astrophysical Journal 660(1): 1-L6
    In this the first of a series of Letters, we present a description of the panchromatic data sets that have been acquired in the Extended Groth Strip region of the sky. Our survey, the All-wavelength Extended Groth strip ...

  • 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 ...

  • The masses of Local Group dwarf spheroidal galaxies: The death of the universal mass profile 

    Collins, Michelle L. M., Scott C. Chapman, R. M. Rich, Rodrigo A. Ibata, et al. 2013. "The masses of Local Group dwarf spheroidal galaxies: The death of the universal mass profile." The Astrophysical Journal 783(1):7.
    We investigate the claim that all dwarf spheroidal galaxies (dSphs) reside within halos that share a common, universal mass profile as has been derived for dSphs of the Galaxy. By folding in kinematic information for 25 ...

  • The Recent Stellar Archeology of M31 - The Nearest Red Disk Galaxy 

    Davidge, T. J., A. W. McConnachie, M. A. Fardal, J. Fliri, et al. 2012. "The Recent Stellar Archeology of M31 - The Nearest Red Disk Galaxy." The Astrophysical Journal 751(1):74
    We examine the star-forming history (SFH) of the M31 disk during the past few hundred Myr. The luminosity functions (LFs) of main sequence stars at distances R_GC > 21 kpc (i.e. > 4 disk scale lengths) are matched by models ...

  • The scatter about the "Universal" dwarf spheroidal mass profile: A kinematic study of the M31 satellites, And V and And VI 

    Collins, M. L. M., S. C. Chapman, R. M. Rich, R. A. Ibata, et al. 2011. "The scatter about the "Universal" dwarf spheroidal mass profile: A kinematic study of the M31 satellites, And V and And VI." Monthly Notices of the Royal Astronomical Society 417:1170.
    While the satellites of the Milky Way (MW) have been shown to be largely consistent in terms of their mass contained within one half--light radius (M_{half}) with a "Universal" mass profile, a number of M31 satellites are ...