Unusually High Metallicity Host Of The Dark LGRB 051022
  We present spectroscopy of the host of GRB 051022 with GMOS nod and shuffle
on Gemini South and NIRSPEC on Keck II. We determine a metallicity for the host
of log(O/H)+12 = 8.77 using the R23 method (Kobulnicky & Kewley 2004 scale)
making this the highest metallicity long burst host yet observed. The galaxy
itself is unusually luminous for a LGRB host with a rest frame B band absolute
magnitude -21.5 and has the spectrum of a rapidly star-forming galaxy. Our work
raises the question of whether other dark burst hosts will show high
metallicities.
