Effect of nearby supernova explosions on atmospheric ozone

  title={Effect of nearby supernova explosions on atmospheric ozone},
  author={Robert C. Whitten and Jeffrey N. Cuzzi and William J. Borucki and John H. Wolfe},
WE have calculated the probable effects of a nearby supernova event on the ozone layer. We find that the effects are significant and long lasting, but are relatively rare at the location of the Earth in the Galaxy. 
Ozone Depletion from Nearby Supernovae
Estimates made in the 1970s indicated that a supernova occurring within tens of parsecs of Earth could have significant effects on the ozone layer. Since that time, improved tools for detailed
Lethal Radiation from Nearby Supernovae Helps Explain the Small Cosmological Constant
Abstract The observed value Λobs of the cosmological constant Λ is extremely smaller than theoretical expectations, and the anthropic argument has been proposed as a solution to this problem becaus...
Terrestrial effects of moderately nearby supernovae.
This short communication/review is designed to describe in more detail the sorts of effects that are indicated at the Earth from supernovae in the Early Pleistocene, so that they may possibly be related to changes in the biota around these times.
Terrestrial effects of moderately nearby supernovae
This short communication/review is designed to describe in more detail the sorts of effects that are indicated at the Earth using new information about the nature of supernovae and the distances of these events to describe some of these effects so that they may possibly be related to changes in the biota around these times.
Ozone depletion-induced climate change following a 50 pc supernova
Ozone in Earth's atmosphere is known to have a radiative forcing effect on climate. Motivated by geochemical evidence for one or more nearby supernovae about 2.6 million years ago, we have
Effects of intense stratospheric ionisation events
High levels of ionising radiation in the Earth's stratosphere will lead to increased concentrations of nitrogen oxides and decreased concentrations of ozone. Changes in the surface environment will
Evidence of nearby supernovae affecting life on Earth
Observations of open star clusters in the solar neighborhood are used to calculate local supernova (SN) rates for the past 510 million years (Myr). Peaks in the SN rates match passages of the Sun
Der gegenwärtige Stand des Ozon-Problems
  • P. Fabian
  • Environmental Science
  • 2005
The atmospheric minor constituents relevant to the ozone layer and their photochemistry are discussed. Mechanisms of a possible anthropogenic depletion of the ozone layer due to supersonic aircraft,
Frequency of nearby supernovae and climatic and biological catastrophes
MCCREA1,2 has proposed that the encounter of the Solar System with a dense cloud of interstellar material during its passage through a spiral arm of the Galaxy may produce such climatic catastrophes


Possible Consequences of Nearby Supernova Explosions for Atmospheric Ozone and Terrestrial Life
Hard x-ray pulses or increased cosmic radiation originating in nearby supernova explosions may be capable of temporarily removing most of the earth's atmospheric ozone cover even when direct
Cosmic rays from nearby supernovae: biological effects.
Animal extinction on earth in geological times by nearby exploding supernovae cosmic radiation shown irreconcilable with galactic cosmic ray propagation
Possible ozone depletions following nuclear explosions
HAMPSON1 has commented on the possible destruction of the Earth's ozone shield by nitric oxide generated during nuclear explosions in the atmosphere. He suggested that if such an ozone decrease were
Size distribution of cosmic gamma-ray bursts
WE report on the combined results of three balloon-borne searches for small cosmic γ-ray bursts, carried out by the Imperial College Space Physics Groups. We suggest that our results are incompatible
On the origin of cosmic rays
Summary A brief survey is given of the various physical, astronomical and radioastronomical data pertaining to cosmic ray nuclei with energies above 1 Gev. A theory is then outlined, the details of
Observations of Gamma-Ray Bursts of Cosmic Origin
Sixteen short bursts of photons in the energy range 0.2–1.5 MeV have been observed between 1969 July and 1972 July using widely separated spacecraft. Burst durations ranged from less than 0.1 s to
Cosmic Rays in the Galaxy
Galactic cosmic rays, discussing chemical composition, isotopic separation, proton and alpha particles energy spectra, propagation, interactions, etc
On the theory of the light curves of supernovae
An account of the theory of the light curves of supernovae is presented, based on certain assumptions concerning the passage through the stellar atmosphere of powerful shock waves. The investigation
Cosmic ray streaming
TAKING the confinement mechanism for cosmic rays in the Galaxy to be resonant scattering by Alfvén or hydromagnetic waves generated by the streaming of the cosmic rays themselves1,2, I shall show
A search for X-rays from supernova 1972e with Uhuru and OSO-7
The results of observations performed with X-ray detectors aboard OSO-7 and Uhuru at 13 different times ranging from 16 months before to 2 years after Sn 1972e maximum light are reported. Only one