762 citations · 21.9k across the 319 of their papers we have counts for
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A new population of extended, luminous star clusters in the halo of M31
A. P. Huxor, N. R. Tanvir, M. J. Irwin +5
We present three new clusters discovered in the halo of M31 which, although having globular-like colours and luminosities,have an unusually large half-light radii, ~30 pc. They lie…
The binary progenitor of Tycho Brahe's 1572 supernova
Pilar Ruiz-Lapuente, Fernando Comeron, Javier Mendez +8
The brightness of type Ia supernovae, and their homogeneity as a class, makes them powerful tools in cosmology, yet little is known about the progenitor systems of these explosions…
Distances and Metallicities for 17 Local Group Galaxies
A. W. McConnachie, M. J Irwin, A. M. N. Ferguson +3
We have obtained Johnson V and Gunn i photometry for a large number of Local Group galaxies using the Isaac Newton Telescope Wide Field Camera (INT WFC). The majority of these gala…
The Canis Major Dwarf Galaxy
Geraint F. Lewis, Rodrigo A. Ibata, Michael J. Irwin +3
Recent observational evidence suggests that the Sagittarius dwarf galaxy represents the only major ongoing accretion event in the Galactic halo, accounting for the majority of stel…
A Keck/Deimos Survey of Red Giant Branch Stars in the Outskirts of M31
Annette Ferguson, Scott Chapman, Rodrigo Ibata +3
We are using the DEIMOS multi-object spectrograph on the Keck II 10m telescope to conduct a spectroscopic survey of red giant branch stars in the outskirts of M31. To date, velocit…
Why the Canis Major overdensity is not due to the Warp: analysis of its radial profile and velocities
N. F. Martin, R. A. Ibata, B. C. Conn +4
In response to criticism by Momany et al. (2004), that the recently-identified Canis Major (CMa) overdensity could be simply explained by the Galactic warp, we present proof of the…