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Anisotropy in the Distribution of Satellite Galaxy Orbits
Alexander Knebe, Stuart P. D. Gill, Brad K. Gibson +3
Nearby clusters such as Virgo and Coma possess galaxy distributions which tend to be aligned with the principal axis of the cluster itself. This has also been confirmed by a recent…
Detection of the Canis Major galaxy at (l;b)=(244;-8) and in the background of Galactic open clusters
M. Bellazzini, R. Ibata, L. Monaco +3
We report on the detection of Main Sequence stars belonging to the recently identified Canis Major galaxy in a field located at ~ 4.2 deg from the center of the stellar system. Wit…
Gravitational microlensing of quasar broad line regions at large optical depths
Geraint F. Lewis, Rodrigo A. Ibata
Recent estimates of the scale of structures at the heart of quasars suggest that the region responsible for the broad line emission are smaller than previously thought. With this r…
Further multiwavelength observations of the SSA22 Ly_alpha emitting `blob'
S. C. Chapman, D. Scott, R. A. Windhorst +4
We present new follow-up observations of the sub-mm luminous Ly_alpha-emitting object in the SSA22 z=3.09 galaxy overdensity, referred to as `Blob 1' by Steidel et al.(2000). In pa…
The Sizes and Kinematic Structure of Absorption Systems Towards the Lensed Quasar APM08279+5255
Sara L. Ellison, Rodrigo Ibata, Max Pettini +4
We have obtained spatially resolved spectra of the z=3.911 triply imaged QSO APM08279+5255 using the Space Telescope Imaging Spectrograph (STIS) on board the Hubble Space Telescope…
The Structure of High Redshift Galactic Halos
Sara L. Ellison, Rodrigo Ibata, Max Pettini +4
Observations of multiple or lensed QSOs at high redshift can be used to probe transverse structure in intervening absorption systems. Here we present results obtained from STIS spe…