The near-Earth objects and their potential threat to our planet

@article{Perna2013TheNO,
  title={The near-Earth objects and their potential threat to our planet},
  author={D. Perna and M. Barucci and M. Fulchignoni},
  journal={The Astronomy and Astrophysics Review},
  year={2013},
  volume={21},
  pages={1-28}
}
The near-Earth object (NEO) population includes both asteroids (NEAs) and comet nuclei (NECs) whose orbits have perihelion distances q<1.3 AU and which can approach or cross that of the Earth. A NEA is defined as a “potentially hazardous asteroid” (PHA) for Earth when its minimum orbit intersection distance (MOID) comes inside 0.05 AU and it has an absolute magnitude H<22 mag (i.e. mean diameter > 140 m). These are big enough to cause, in the case of impact with Earth, destructive effects on a… Expand
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References

SHOWING 1-10 OF 92 REFERENCES
Origin and Evolution of Near-Earth Objects
Asteroids and comets on orbits with perihelion distance q 0.983 AU are usually called near-Earth objects (NEOs). It has long been debated whether the NEOs are mostly of asteroidal or cometary origin.Expand
The orbital distribution of Near-Earth Objects inside Earth's orbit
Canada’s Near-Earth Object Surveillance Satellite (NEOSSat), set to launch in early 2012, will search for and track Near-Earth Objects (NEOs), tuning its search to best detect objects with a < 1.0Expand
Debiased Orbital and Absolute Magnitude Distribution of the Near-Earth Objects
The orbital and absolute magnitude distribution of the near-Earth objects (NEOs) is difficult to compute, partly because only a modest fraction of the entire NEO population has been discovered soExpand
Comets in the near-Earth object population
Abstract Because the lifespan of near-Earth objects (NEOs) is shorter than the age of the Solar System, these objects originate elsewhere. Their most likely sources are the main asteroid belt andExpand
Probing the interior of asteroid Apophis: a unique opportunity in 2029
Abstract The near Earth asteroid (99942) Apophis, discovered in 2004, (with a diameter of about 270 meters) will come back very close to the Earth on April 13, 2029. The close approach of Apophis toExpand
ExploreNEOs: A Search for Near-Earth Objects of Cometary Origin
The short dynamical lifetime of near-Earth objects (NEOs) compared to the age of the Solar System implies the existence of sources of replenishment in order to maintain the observed population ofExpand
Near Earth Asteroids with measurable Yarkovsky effect
Abstract We seek evidence of the Yarkovsky effect among Near Earth Asteroids (NEAs) by measuring the Yarkovsky-related orbital drift from the orbital fit. To prevent the occurrence of unreliableExpand
Physical properties of Near-Earth Objects that inform mitigation
TLDR
The current knowledge of main physical properties of NEOs and their importance for the most usual mitigation strategies, i.e. the kinetic impactor, the gravity tractor, strategies based on anchoring or depositing material on the surface, and strategies aimed at modifying the thermal properties of the NEO in order to either modify or cancel the Yarkovsky effect, or cause surface vaporization are summarized. Expand
The Torino Impact Hazard Scale
Abstract Newly discovered asteroids and comets have inherent uncertainties in their orbit determinations owing to the natural limits of positional measurement precision and the finite lengths ofExpand
Mitigation of Hazardous Comets and Asteroids
Preface 1. Recent progress in interpreting the nature of the near-Earth object population W. Bottke, A. Morbidelli and R. Jedicke 2. Earth impactors: orbital characteristics and warning times S. R.Expand
...
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5
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