TESTING THE POSSIBLE INTRINSIC ORIGIN OF THE EXCESS VERY STRONG Mg ii ABSORBERS ALONG GAMMA-RAY BURST LINES-OF-SIGHT

@article{Cucchiara2008TESTINGTP,
  title={TESTING THE POSSIBLE INTRINSIC ORIGIN OF THE EXCESS VERY STRONG Mg ii ABSORBERS ALONG GAMMA-RAY BURST LINES-OF-SIGHT},
  author={A. Cucchiara and Therese M. Jones and Jane C. Charlton and Derek B. Fox and Derek Einsig and A. Narayanan},
  journal={The Astrophysical Journal},
  year={2008},
  volume={697},
  pages={345 - 360}
}
The startling discovery by Prochter et al. that the frequency of very strong (Wr(2796)>1 Å) Mg ii absorbers along gamma-ray burst (GRB) lines of sight ([dN/dz]GRB = 0.90) is more than three times the frequency along quasar lines of sight ([dN/dz]QSO = 0.24), over similar redshift ranges, has yet to be understood. In particular, explanations appealing to dust antibias in quasar samples, partial covering of the quasar sources, and gravitational-lensing amplification of the GRBs have all been… 

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