Bias-corrected population, size distribution, and impact hazard for the near-Earth objects

Stuart, J.; Binzel, Richard P.

doi:10.1016/j.icarus.2004.03.018

Cited by 218 publications

(271 citation statements)

References 37 publications

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“…where the model is normalized such that the cumulative number of objects brighter than H ¼ 18 is 960, which matches the Bottke et al (2002) model and other contemporary estimates (Stuart and Binzel 2004). There are clearly discrepancies between the two distributions, with the eccentricity of our synthetic population being concentrated toward higher values than those of the current known population.…”

Section: The Near-earth Objectssupporting

confidence: 73%

The Pan-STARRS Synthetic Solar System Model: A Tool for Testing and Efficiency Determination of the Moving Object Processing System

Grav

Jedicke

Denneau

et al. 2011

Publications of the Astronomical Society of the Pacific

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ABSTRACT. We present here the Pan-STARRS Moving Object Processing System (MOPS) Synthetic Solar System Model (S3M), the first-ever attempt at building a comprehensive flux-limited model of the major small-body populations in the solar system. The goal of the S3M is to provide a valuable tool in the design and testing of the MOPS software, and will be used in the monitoring of the upcoming Pan-STARRS 1 all-sky survey, which started science operations during late spring of 2010. The model is composed of synthetic populations of near-Earth objects (NEOs with a subpopulation of Earth impactors), the main-belt asteroids (MBAs), Jovian Trojans, Centaurs, trans-Neptunian objects (classical, resonant, and scattered trans-Neptunian objects [TNOs]), Jupiter-family comets (JFCs), long-period comets (LPCs), and interstellar comets. The model reasonably reproduces the true populations to a minimum of V ¼ 24:5, corresponding to approximately the expected limiting magnitude for Pan-STARRS's ability to detect moving objects. The NEO synthetic population has been extended to H < 25 (corresponding to objects of about 50 m in diameter), allowing for close flybys of the Earth to be modeled.

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Section: The Near-earth Objectssupporting

confidence: 73%

The Pan-STARRS Synthetic Solar System Model: A Tool for Testing and Efficiency Determination of the Moving Object Processing System

Grav

Jedicke

Denneau

et al. 2011

Publications of the Astronomical Society of the Pacific

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“…To calibrate our Yarkovsky effect/resonance removal rate functions, we ran numerous CoDDEM simulations and compared our model NEO population to estimates of the observed population between 0.001 < D 10 km (Stokes et al 2003;Stuart & Binzel 2004). We found the above parameters produced a model NEO population that was a good match with observations.…”

Section: Collisional and Dynamical Depletion Evolution Model (Coddem)mentioning

confidence: 87%

The origin and evolution of stony meteorites

et al. 2004

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Abstract. The origin of stony meteorites landing on Earth today is directly linked to the history of the main belt, which evolved both through collisional evolution and dynamical evolution/depletion. In this paper, we focus our attention on the main belt dynamical evolution scenario discussed in Petit et al. (2001). According to Petit et al., during the planet formation epoch, the primordial main belt contained several Earth masses of material, enough to allow the asteroids to accrete on relatively short timescales.After a few My, the accretion of planetary embryos in the main belt zone dynamically stirred the remaining planetesimals to high enough velocities to initiate fragmentation. After a short interval, perhaps as long as 10 My, the primordial main belt was dynamically depleted of > 99% of its material via the combined perturbations of the planetary embryos and a newly-formed Jupiter. The small percentage of objects that survived in the main belt zone became the asteroid belt. It has been shown that the wavy-shaped size-frequency distribution of the main belt is a "fossil" left over from this violent period .Using a collisional/dynamical model of this scenario, we tracked the evolution of stony meteoroids produced by catastrophic disruption events over the last several Gy. We show that most stony meteoroids are a byproduct of a collisional cascade derived from large and ancient asteroid families or smaller, more recent breakup events. The meteoroids are then delivered to Earth by drifting in semimajor axis via Yarkovsky thermal drag forces until they reach a resonance powerful enough to place them on an Earth-crossing orbit.

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“…124 125 Figure 2 shows the cumulative number of impacts by bodies larger than 10 km in 126 diameter for three bombardment histories. The decreasing flux estimate is based on 127 dynamical erosion of the asteroid belt (Minton and Malhotra, 2010) and is scaled so that 128 the current impactor flux is equal to the impactor flux calculated based on observations of 129 NEOs (Stuart and Binzel, 2004). One minor difference between this work and that of 130…”

Section: ; Johnson and 44mentioning

confidence: 99%

Spherule layers, crater scaling laws, and the population of ancient terrestrial impactors

Johnson

Collins

Minton

et al. 2016

Icarus

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Bias-corrected population, size distribution, and impact hazard for the near-Earth objects

Cited by 218 publications

References 37 publications

The Pan-STARRS Synthetic Solar System Model: A Tool for Testing and Efficiency Determination of the Moving Object Processing System

The Pan-STARRS Synthetic Solar System Model: A Tool for Testing and Efficiency Determination of the Moving Object Processing System

The origin and evolution of stony meteorites

Spherule layers, crater scaling laws, and the population of ancient terrestrial impactors

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