Browsing Chapman, Scott by Author "Babul, Arif"

Now showing items 1-4 of 4

  • The large-scale structure of the halo of the Andromeda Galaxy Part I: global stellar density, morphology and metallicity properties 

    Ibata, Rodrigo A., Geraint F. Lewis, Alan W. McConnachie, Nicolas F. Martin, et al. 2013. "The large-scale structure of the halo of the Andromeda Galaxy Part I: global stellar density, morphology and metallicity properties." The Astrophysical Journal780(2):128
    We present an analysis of the large-scale structure of the halo of the Andromeda galaxy, based on the Pan-Andromeda Archeological Survey (PAndAS), currently the most complete map of resolved stellar populations in any ...

  • PAndAS in the mist: The stellar and gaseous mass within the halos of M31 and M33 

    Lewis, Geraint F., Robert Braun, Alan W. McConnachie, Michael J. Irwin, et al. 2012. "PAndAS in the mist: The stellar and gaseous mass within the halos of M31 and M33." The Astrophysical Journal 763:4.
    Large scale surveys of the prominent members of the Local Group have provided compelling evidence for the hierarchical formation of massive galaxies, revealing a wealth of substructure that is thought to be the debris from ...

  • PAndAS' cubs: discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies 

    Martin, Nicolas F., Alan W. McConnachie, Mike Irwin, Lawrence M. Widrow, et al. 2009. "PAndAS' cubs: discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies." The Astrophysical Journal 705(1):758.
    We present the discovery of two new dwarf galaxies, Andromeda XXI and Andromeda XXII, located in the surroundings of the Andromeda and Triangulum galaxies (M31 and M33). These discoveries stem from the first year data of ...

  • Unearthing Foundations of a Cosmic Cathedral: Searching the Stars for M33's Halo 

    Cockcroft, Robert, Alan W. McConnachie, William E. Harris, Rodrigo Ibata, et al. 2012. "Unearthing Foundations of a Cosmic Cathedral: Searching the Stars for M33's Halo." 428(2): 1248-1262
    We use data from the Pan-Andromeda Archaeological Survey (PAndAS) to search for evidence of an extended halo component belonging to M33 (the Triangulum Galaxy). We identify a population of red giant branch (RGB) stars at ...