Browsing Chapman, Scott by Author "Tanvir, N. R."

Now showing items 1-6 of 6

  • Deep Gemini/GMOS imaging of an extremely isolated globular cluster in the Local Group 

    Mackey, A. D., A. M. N. Ferguson, M. J. Irwin, N. F. Martin, et al. 2009. "Deep Gemini/GMOS imaging of an extremely isolated globular cluster in the Local Group." Monthly Notices of the Royal Astronomical Society 401:533.
    We report on deep imaging of a remote M31 globular cluster, MGC1, obtained with Gemini/GMOS. Our colour-magnitude diagram for this object extends ~5 magnitudes below the tip of the red giant branch and exhibits features ...

  • The Discovery of Remote Globular Clusters in M33 

    Huxor, A., A. M. N. Ferguson, M. K. Barker, N. R. Tanvir, et al. 2009. "The Discovery of Remote Globular Clusters in M33." The Astrophysical Journal Letters, 698(2): 77-L81
    We present the discovery of four remote star clusters in M33, one of which is of an extended nature. Three of the clusters were discovered using survey data from the Isaac Newton Telescope Wide-Field Camera while one was ...

  • Exploring the Properties of the M31 Halo Globular Cluster System 

    Huxor, A. P., A. M. N. Ferguson, N. R. Tanvir, M. J. Irwin, et al. 2011. "Exploring the Properties of the M31 Halo Globular Cluster System." Monthly Notices of the Royal Astronomical Society 414:770.
    Following on from our discovery of a significant population of M31 outer halo globular clusters (GCs), and updates to the Revised Bologna Catalogue of M31 GCs, we investigate the GC system of M31 out to an unprecedented ...

  • An HST/ACS View of the Inhomogeneous Outer Halo of M31 

    Richardson, J. C., A. M. N. Ferguson, A. D. Mackey, M. J. Irwin, et al. 2009. "An HST/ACS View of the Inhomogeneous Outer Halo of M31." Monthly Notices of the Royal Astronomical Society 396:1842.
    We present a high precision photometric view of the stellar populations in the outer halo of M31, using data taken with the Hubble Space Telescope Advanced Camera for Surveys (HST/ACS). We analyse the field populations ...

  • Inside the whale: the structure and dynamics of the isolated Cetus dwarf spheroidal 

    Lewis, G. F., R. A. Ibata, S. C. Chapman, A. McConnachie, et al. 2007. "Inside the whale: the structure and dynamics of the isolated Cetus dwarf spheroidal." Monthly Notices of the Royal Astronomical Society 375(4): 1364-1370
    This paper presents a study of the Cetus dwarf, an isolated dwarf galaxy within the Local Group. A matched-filter analysis of the INT/WFC imaging of this system reveals no evidence for significant tidal debris that could ...

  • The structure of star clusters in the outer halo of M31 

    Tanvir, N. R., A. D. Mackey, A. M. N. Ferguson, A. P. Huxor, et al. 2012. "The structure of star clusters in the outer halo of M31." Monthly Notices of the Royal Astronomical Society 422:162.
    We present a structural analysis of halo star clusters in M31 based on deep Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) imaging. The clusters in our sample span a range in galactocentric projected distance ...