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astro-ph2005★ 60 cited
Tracing Galaxy Assembly: Tadpole Galaxies in the Hubble Ultra Deep Field
A. N. Straughn, S. H. Cohen, R. E. Ryan +3
In the Hubble Ultra Deep Field (HUDF) an abundance of galaxies is seen with a knot at one end plus an extended tail, resembling a tadpole. These "tadpole galaxies" appear dynamical…
astro-ph2005★ 31 cited
Clues to AGN Growth from Optically Variable Objects in the Hubble Ultra Deep Field
S. H. Cohen, R. E. Ryan, A. N. Straughn +9
We present a photometric search for objects with point-source components that are optically variable on timescales of weeks--months in the Hubble Ultra Deep Field (HUDF) to i'(AB)=…