Infrared and Optical Observations of GRB 030115 and its Extremely Red Host Galaxy: Implications for Dark Bursts*

  title={Infrared and Optical Observations of GRB 030115 and its Extremely Red Host Galaxy: Implications for Dark Bursts*},
  author={Andrew J. Levan and A. S. Fruchter and James E. Rhoads and Bahram Mobasher and Nial R. Tanvir and Javier Gorosabel and Evert Rol and Chryssa Kouveliotou and Ian P. Dell’Antonio and Mike Merrill and Eddie Bergeron and Jos'e Mar'ia Castro Cer'on and Nicola Masetti and Paul M. Vreeswijk and Angelo Antonelli and David Bersier and Alberto J. Castro-Tirado and Johan P. U. Fynbo and Peter M. Garnavich and Stephen Holland and Jens Hjorth and Peter E. Nugent and E. Pian and Alain Smette and Bjarne Thomsen and Stephen Erik Thorsett and Ralph Wijers},
  journal={The Astrophysical Journal},
We present near-infrared (NIR) and optical observations of the afterglow of GRB 030115. Discovered in an infrared search at Kitt Peak 5 hr after the burst trigger, this afterglow is the faintest ever observed in the R band at such an early epoch and exhibits very red colors, with R - K approximate to 6. The optical magnitude of the afterglow of GRB 030115 is fainter than many upper limits for other bursts, suggesting that without early NIR observations it would have been classified as a "dark… 
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