Abstract
A statistical analysis of gamma-ray burst host galaxies is presented and a clear metallicity-stellar mass relation is found in our sample. A trend that a more massive host galaxy tends to have a higher star-formation rate is also found. No correlation is found between A V and N H. GRB host galaxies at a higher redshift also tend to have a higher star formation rate, however, even in the same redshift, the star formation rate may vary for three orders of magnitude.
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Acknowledgements
This work is supported by the 973 Program of China (2014CB845800), the National Natural Science Foundation of China (Grants Nos 11025313, 11078008 and 11203008), and the Guangxi Natural Science Foundation (2013GXNSFFA019001), Key Laboratory for the Structure and Evolution of Celestial Objects of Chinese Academy of Sciences, and the Strategic Priority Research Program “The Emergence of Cosmological Structures” of the Chinese Academy of Sciences, Grant No. XDB09000000.
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Chen, JM., Zhang, J., Jia, LW. et al. Statistical Properties of Gamma-Ray Burst Host Galaxies. J Astrophys Astron 35, 267–270 (2014). https://doi.org/10.1007/s12036-014-9207-y
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DOI: https://doi.org/10.1007/s12036-014-9207-y