@article{stanway_exploring_2017,
	title = {Exploring the {Cosmic} {Evolution} of {Habitability} with {Galaxy} {Merger} {Trees}},
	url = {http://arxiv.org/abs/1710.03033},
	abstract = {We combine inferred galaxy properties from a semi-analytic galaxy evolution model incorporating dark matter halo merger trees with new estimates of supernova and gamma ray burst rates as a function of metallicity from stellar population synthesis models incorporating binary interactions. We use these to explore the stellar mass fraction of galaxies irradiated by energetic astrophysical transients and its evolution over cosmic time, and thus the fraction which is potentially habitable by life like our own. We find that 18 per cent of the stellar mass in the Universe is likely to have been irradiated within the last 260 Myr, with GRBs dominating that fraction. We do not see a strong dependence of irradiated stellar mass fraction on stellar mass or richness of the galaxy environment. We consider a representative merger tree as a Local Group analogue, and find that there are galaxies at all masses which have retained a high habitable fraction ({\textgreater}50 per cent) over the last 6 Gyr, but also that there are galaxies at all masses where the merger history and associated star formation have rendered galaxies effectively uninhabitable. This illustrates the need to consider detailed merger trees when evaluating the cosmic evolution of habitability.},
	journal = {arXiv:1710.03033 [astro-ph]},
	author = {Stanway, E. R. and Hoskin, M. J. and Lane, M. A. and Brown, G. C. and Childs, H. J. T. and Greis, S. M. L. and Levan, A. J.},
	month = oct,
	year = {2017},
	note = {arXiv: 1710.03033},
	keywords = {Astrophysics - Astrophysics of Galaxies},
}

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We find that 18 per cent of the stellar mass in the Universe is likely to have been irradiated within the last 260 Myr, with GRBs dominating that fraction. We do not see a strong dependence of irradiated stellar mass fraction on stellar mass or richness of the galaxy environment. We consider a representative merger tree as a Local Group analogue, and find that there are galaxies at all masses which have retained a high habitable fraction (\\textgreater50 per cent) over the last 6 Gyr, but also that there are galaxies at all masses where the merger history and associated star formation have rendered galaxies effectively uninhabitable. This illustrates the need to consider detailed merger trees when evaluating the cosmic evolution of habitability.","journal":"arXiv:1710.03033 [astro-ph]","author":[{"propositions":[],"lastnames":["Stanway"],"firstnames":["E.","R."],"suffixes":[]},{"propositions":[],"lastnames":["Hoskin"],"firstnames":["M.","J."],"suffixes":[]},{"propositions":[],"lastnames":["Lane"],"firstnames":["M.","A."],"suffixes":[]},{"propositions":[],"lastnames":["Brown"],"firstnames":["G.","C."],"suffixes":[]},{"propositions":[],"lastnames":["Childs"],"firstnames":["H.","J.","T."],"suffixes":[]},{"propositions":[],"lastnames":["Greis"],"firstnames":["S.","M.","L."],"suffixes":[]},{"propositions":[],"lastnames":["Levan"],"firstnames":["A.","J."],"suffixes":[]}],"month":"October","year":"2017","note":"arXiv: 1710.03033","keywords":"Astrophysics - Astrophysics of Galaxies","bibtex":"@article{stanway_exploring_2017,\n\ttitle = {Exploring the {Cosmic} {Evolution} of {Habitability} with {Galaxy} {Merger} {Trees}},\n\turl = {http://arxiv.org/abs/1710.03033},\n\tabstract = {We combine inferred galaxy properties from a semi-analytic galaxy evolution model incorporating dark matter halo merger trees with new estimates of supernova and gamma ray burst rates as a function of metallicity from stellar population synthesis models incorporating binary interactions. We use these to explore the stellar mass fraction of galaxies irradiated by energetic astrophysical transients and its evolution over cosmic time, and thus the fraction which is potentially habitable by life like our own. We find that 18 per cent of the stellar mass in the Universe is likely to have been irradiated within the last 260 Myr, with GRBs dominating that fraction. We do not see a strong dependence of irradiated stellar mass fraction on stellar mass or richness of the galaxy environment. We consider a representative merger tree as a Local Group analogue, and find that there are galaxies at all masses which have retained a high habitable fraction ({\\textgreater}50 per cent) over the last 6 Gyr, but also that there are galaxies at all masses where the merger history and associated star formation have rendered galaxies effectively uninhabitable. This illustrates the need to consider detailed merger trees when evaluating the cosmic evolution of habitability.},\n\tjournal = {arXiv:1710.03033 [astro-ph]},\n\tauthor = {Stanway, E. R. and Hoskin, M. J. and Lane, M. A. and Brown, G. C. and Childs, H. J. T. and Greis, S. M. L. and Levan, A. J.},\n\tmonth = oct,\n\tyear = {2017},\n\tnote = {arXiv: 1710.03033},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies},\n}\n\n","author_short":["Stanway, E. R.","Hoskin, M. J.","Lane, M. A.","Brown, G. C.","Childs, H. J. T.","Greis, S. M. L.","Levan, A. 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