On deep-ocean as a fossil of a near-earth supernova

@article{Fields1998OnDA,
  title={On deep-ocean as a fossil of a near-earth supernova},
  author={Brian D. Fields and John Ellis},
  journal={New Astronomy},
  year={1998},
  volume={4},
  pages={419-430}
}

Tables from this paper

Deep-Ocean Crusts as Telescopes: Using Live Radioisotopes to Probe Supernova Nucleosynthesis

Live 60Fe has recently been detected in a deep-ocean ferromanganese crust, isolated in layers dating from about 3 Myr ago. Since 60Fe has a mean life of 2.2 Myr, a near-Earth supernova is the only

Close encounters of the stellar kind

Stars which pass close to the Sun can perturb the Oort cloud, injecting comets into the inner solar system where they may collide with the Earth. Using van Leeuwen's re-reduction of the Hipparcos

Celestial driver of Phanerozoic climate

Atmospheric levels of CO2 are commonly assumed to be a main driver of global climate. Independent empirical evidence suggests that the galactic cosmic ray flux (CRF) is linked to climate variability.

Paleodetectors for Galactic supernova neutrinos

Paleodetectors are a proposed experimental technique in which one would search for traces of recoiling nuclei in ancient minerals. Natural minerals on Earth are as old as O(1) Gyr and, in many mine

The Notion of Existential Risk and Its Role for the Anticipation of Technological Development’s Long-Term Impact

Existential risk has been defined by Nick Bostrom (J Evol Technol 9(1):1–31, 2002) as “one where an adverse outcome would either annihilate Earth-originating intelligent life or permanently and

Fingerprint of Galactic Loop I on polarized microwave foregrounds

  • Hao Liu
  • Physics
    Astronomy & Astrophysics
  • 2018
Context. Currently, detection of the primordial gravitational waves using the B-mode of cosmic microwave background (CMB) is primarily limited by our knowledge of the polarized microwave foreground

Exploring the cosmic evolution of habitability with galaxy merger trees

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

Numerical studies on the link between radioisotopic signatures on Earth and the formation of the Local Bubble. I. 60Fe transport to the solar system by turbulent mixing of ejecta from nearby supernovae into a locally homogeneous interstellar medium

The discovery of radionuclides like 60Fe with half-lives of million years in deep-sea crusts and sediments offers the unique possibility to date and locate nearby supernovae. We want to

CHARGE SPECTRUM OF HEAVY AND SUPERHEAVY COMPONENTS OF GALACTIC COSMIC RAYS: RESULTS OF THE OLIMPIYA EXPERIMENT

The aim of the OLIMPIYA experiment is to search for and identify traces of heavy and superheavy nuclei of galactic cosmic rays (GCR) in olivine crystals from stony–iron meteorites serving as nuclear

References

SHOWING 1-10 OF 35 REFERENCES

CERN report

  • 1998

Proc. Nat. Acad. Sei

Could a nearby supernova explosion have caused a mass extinction?

  • J. EllisD. Schramm
  • Physics
    Proceedings of the National Academy of Sciences of the United States of America
  • 1995
TLDR
It is examined the possibility that a nearby supernova explosion could have caused one or more of the mass extinctions identified by paleontologists, and the possible rate of such events is discussed.

Cosmic-ray-produced iron 60 in Odessa meteorite

It has been assumed that the long-lived radionuclide Fe60(t1/2 ∼ 1.0 · 105 yr) was produced by cosmic radiation in meteorites. Until now its detection was prevented (1) because its concentration is

Geochim. et Cosmochim. Acta

  • Geochim. et Cosmochim. Acta
  • 1989

Note on a Possible Factor in Changes of Geological Climate

  • H. Shapley
  • Geology, Environmental Science
    The Journal of Geology
  • 1921
In a recent discussion of the factors that control variations of world climatic conditions, Professor Humphreys has criticized the various astronomical hypotheses that attempt to explain the ice ages