Disparate MG II absorption statistics towards quasars and gamma-ray bursts: a possible explanation

@article{Frank2007DisparateMI,
  title={Disparate MG II absorption statistics towards quasars and gamma-ray bursts: a possible explanation},
  author={Stephan Frank and Misty C. Bentz and Krzysztof Zbigniew Stanek and Smita Mathur and Matthias Dietrich and Bradley M. Peterson and David W. Atlee},
  journal={Astrophysics and Space Science},
  year={2007},
  volume={312},
  pages={325-330}
}
Abstract We examine the recent report by Prochter et al. that gamma-ray burst (GRB) sight lines have a much higher incidence of strong Mg II absorption than quasar sight lines. We propose that the discrepancy is due to the different beam sizes of GRBs and quasars, and that the intervening Mg II systems are clumpy with the dense part of each cloudlet of a similar size as the quasars, i.e. ≲1016 cm, but bigger than GRBs. We also discuss observational predictions of our proposed model. Most… 
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