• Corpus ID: 15194430

Protecting Life in the Milky Way: Metals Keep the GRBs Away

  title={Protecting Life in the Milky Way: Metals Keep the GRBs Away},
  author={Krzysztof Zbigniew Stanek and Oleg Y. Gnedin and John F. Beacom and Andrew P. Gould and J. A. Johnson and Juna A. Kollmeier and Maryam Modjaz and Marc H. Pinsonneault and Richard W. Pogge and David H. Weinberg},
  journal={arXiv: Astrophysics},
The host galaxies of the five local, z<0.25, long-duration gamma-ray bursts, each of which had a well-documented associated supernova, are all faint and metal-poor compared to the population of local star-forming galaxies. We quantify this statement by using a previous analysis of star-forming galaxies (z<0.2) from the Sloan Digital Sky Survey to estimate the fraction of local star formation as a function of host galaxy oxygen abundance. We find that only a small fraction (<25%) of current star… 

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