The Resilience of Life to Astrophysical Events

<p>Much attention has been given in the literature to the effects of astrophysical events on human and land-based life. However, little has been discussed on the resilience of life itself. Here we instead explore the statistics of events that completely sterilise an Earth-like planet with plan...

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Príomhchruthaitheoirí: Sloan, D, Alves Batista, R, Loeb, A
Formáid: Journal article
Teanga:English
Foilsithe / Cruthaithe: Springer Nature 2017
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author Sloan, D
Alves Batista, R
Loeb, A
author_facet Sloan, D
Alves Batista, R
Loeb, A
author_sort Sloan, D
collection OXFORD
description <p>Much attention has been given in the literature to the effects of astrophysical events on human and land-based life. However, little has been discussed on the resilience of life itself. Here we instead explore the statistics of events that completely sterilise an Earth-like planet with planet radii in the range 0.5-1.5R ⊕ and temperatures of &amp;Tilde;300 K, eradicating all forms of life. We consider the relative likelihood of complete global sterilisation events from three astrophysical sources - supernovae, gamma-ray bursts, large asteroid impacts, and passing-by stars. To assess such probabilities we consider what cataclysmic event could lead to the annihilation of not just human life, but also extremophiles, through the boiling of all water in Earth&amp;apos;s oceans. Surprisingly we find that although human life is somewhat fragile to nearby events, the resilience of Ecdysozoa such as Milnesium tardigradum renders global sterilisation an unlikely event.</p>
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spelling oxford-uuid:c3b88a72-afa5-42fa-a0f9-02f6bdf1e01c2022-03-27T06:18:33ZThe Resilience of Life to Astrophysical EventsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c3b88a72-afa5-42fa-a0f9-02f6bdf1e01cEnglishSymplectic Elements at OxfordSpringer Nature2017Sloan, DAlves Batista, RLoeb, A<p>Much attention has been given in the literature to the effects of astrophysical events on human and land-based life. However, little has been discussed on the resilience of life itself. Here we instead explore the statistics of events that completely sterilise an Earth-like planet with planet radii in the range 0.5-1.5R ⊕ and temperatures of &amp;Tilde;300 K, eradicating all forms of life. We consider the relative likelihood of complete global sterilisation events from three astrophysical sources - supernovae, gamma-ray bursts, large asteroid impacts, and passing-by stars. To assess such probabilities we consider what cataclysmic event could lead to the annihilation of not just human life, but also extremophiles, through the boiling of all water in Earth&amp;apos;s oceans. Surprisingly we find that although human life is somewhat fragile to nearby events, the resilience of Ecdysozoa such as Milnesium tardigradum renders global sterilisation an unlikely event.</p>
spellingShingle Sloan, D
Alves Batista, R
Loeb, A
The Resilience of Life to Astrophysical Events
title The Resilience of Life to Astrophysical Events
title_full The Resilience of Life to Astrophysical Events
title_fullStr The Resilience of Life to Astrophysical Events
title_full_unstemmed The Resilience of Life to Astrophysical Events
title_short The Resilience of Life to Astrophysical Events
title_sort resilience of life to astrophysical events
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AT alvesbatistar theresilienceoflifetoastrophysicalevents
AT loeba theresilienceoflifetoastrophysicalevents
AT sloand resilienceoflifetoastrophysicalevents
AT alvesbatistar resilienceoflifetoastrophysicalevents
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