activity
20062011
most citedRR Lyrae Variables in M33. I. Evidence For a Field Halo Population

111 citations · 343 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.CO2011★ 58 cited

Quantifying the Faint Structure of Galaxies: The Late-type Spiral NGC 2403

Mike K. Barker, Annette M. N. Ferguson, Mike J. Irwin +2

Ground-based surveys have mapped the stellar outskirts of Local Group galaxies in unprecedented detail, but extending this work to other galaxies is necessary to overcome stochasti…

astro-ph.GA2010★ 57 cited

The Star Formation History in The Far Outer Disc of M33

M. K. Barker, A. M. N. Ferguson, A. A. Cole +5

The outer regions of disc galaxies are becoming increasingly recognized as key testing sites for models of disc assembly and evolution. Important issues are the epoch at which the…

astro-ph.GA2009★ 53 cited

Resolving the Stellar Outskirts of M81: Evidence for a Faint, Extended Structural Component

M. K. Barker, A. M. N. Ferguson, M. Irwin +2

We present a wide field census of resolved stellar populations in the northern half of M81, conducted with Suprime-Cam on the 8-m Subaru telescope and covering an area ~ 0.3 square…

astro-ph.CO2009★ 39 cited

The Discovery of Remote Globular Clusters in M33

A. Huxor, A. M. N. Ferguson, M. K. Barker +5

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 T…

astro-ph2006★ 25 cited

Newly Identified Star Clusters in M33. I. Integrated Photometry and Color-Magnitude Diagrams

Ata Sarajedini, M. K. Barker, Doug Geisler +2

We present integrated photometry and color-magnitude diagrams (CMDs) for 24 star clusters in M33, of which 12 were previously uncataloged. These results are based on Advanced Camer…

astro-ph2006★ 111 cited

RR Lyrae Variables in M33. I. Evidence For a Field Halo Population

Ata Sarajedini, M. K. Barker, Doug Geisler +2

We present observations of RR Lyrae variables in the Local Group late-type spiral galaxy M33. Using the Advanced Camera for Surveys on the Hubble Space Telescope, we have identifie…