71 citations · 329 across the 14 of their papers we have counts for
14 papers
Atmosphere-like turbulence generation with surface-etched phase-screens
Stefan Hippler, Felix Hormuth, David J. Butler +2
We built and characterized an optical system that emulates the optical characteristics of an 8m-class telescope like the Very Large Telescope. The system contains rotating glass ph…
A Canis Major over-density imaging survey. I. Stellar content and star-count maps : A distinctly elongated body of main sequence stars
D. J. Butler, D. Martinez-Delgado, H-W. Rix +2
[Abridged] We present first results from a large-area (~80degx20deg), sparsely sampled two-filter (B,R) imaging survey towards the Canis Major stellar over-density, claimed to be a…
Absolute Proper Motion of the Canis Major Dwarf Galaxy Candidate
Dana I. Dinescu, David Martinez-Delgado, Terrence M. Girard +4
We have measured the absolute proper motion of the candidate Canis Major dwarf galaxy (CMa) at $(l,b) = (240\arcdeg, -8\arcdeg)$. Likely main-sequence stars in CMa have been select…
The Canis Major dwarf galaxy as the progenitor of the Monoceros tidal stream
David Martinez-Delgado, Jorge Penarrubia, D. I. Dinescu +2
The Sloan Digital Sky Survey has recently discovered a coherent ring of stars at low galactic latitude that is believed to be the tidal stream of a merging dwarf galaxy in the Gala…
On the stellar populations in NGC 185 and NGC 205, and the nuclear star cluster in NGC 205 from Hubble Space Telescope observations
D. J. Butler, D. Martinez-Delgado
[Abridged] We present a first detailed analysis of resolved stellar populations in the dwarf galaxies NGC 185 and NGC 205 based on archival V- and I-band WFPC2 pointings. For NGC 1…
The Closest View of a Dwarf Galaxy: New Evidence on the Nature of the Canis Major over-density
David Martinez-Delgado, David J. Butler, Hans-Walter Rix +4
We present a first deep colour-magnitude diagram of the putative central region (0.5 deg x 0.5 deg) of the Canis Major stellar over-density (l,b)=(240,-8) found by Martin et al. (2…