Spectroscopic Discovery of the Supernova 2003dh Associated with GRB 030329

@article{Stanek2003SpectroscopicDO,
  title={Spectroscopic Discovery of the Supernova 2003dh Associated with GRB 030329},
  author={Krzysztof Zbigniew Stanek and Thomas Matheson and Peter M. Garnavich and Paul Martini and Perry L. Berlind and Nelson Caldwell and Peter M. Challis and Warren R. Brown and Rudolph Schild and Kevin Krisciunas and M. Calkins and J. C. Lee and Nimish P. Hathi and Rolf A. Jansen and R. A. Windhorst and L. Echevarria and Daniel J. Eisenstein and Bart Pindor and Edward W. Olszewski and Paul Harding and Simon Holland and David Bersier},
  journal={The Astrophysical Journal Letters},
  year={2003},
  volume={591},
  pages={L17 - L20}
}
We present early observations of the afterglow of GRB 030329 and the spectroscopic discovery of its associated supernova SN 2003dh. We obtained spectra of the afterglow of GRB 030329 each night from March 30.12 (0.6 days after the burst) to April 8.13 (UT) (9.6 days after the burst). The spectra cover a wavelength range of 350-850 nm. The early spectra consist of a power-law continuum (Fν ∝ ν-0.9) with narrow emission lines originating from H II regions in the host galaxy, indicating a low… 

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