Near Earth Objects, Our Celestial Neighbors (IAU S236): Opportunity and Risk

封面
Cambridge University Press, 2007年5月24日 - 500 頁
Near Earth Objects (NEOs), asteroids and comets, are the closest neighbors of the Earth-Moon system. They allow research not yet possible on more distant bodies. The IAU Symposium 236 focused on the specific observation and modeling techniques for NEOs, including radar, exploration by spacecraft, measurement of non-gravitational perturbations; also on the next generation surveys expected to increase a hundred-fold the NEO discovery rate. With data from first generation NEO surveys, we now understand how they formed and evolve, dynamically and physically, opening a window on the universal astrophysical phenomenon of collision, leaving clear markings on the surfaces of planets, including the Earth. NEOs with orbits crossing that of the Earth are also a source of impact risks and potential NEO collisions with the Earth represent a long term threat. Mankind has to put in place a chain of mitigating actions; NEO astronomers have successfully put in place the first link.
 

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內容

uncertainty of the MOID and search
3
On the Lyapounov exponents of the asteroidal motion subject to resonances
15
Resonant transNeptunian objects as a source of Jupiterfamily comets
31
Dynamical evolution of Oort cloud comets to nearEarth space
43
Migration of comets the terrestrial planets
55
Search for small transNeptunian objects by the TAOS project
65
On secular resonances of small bodies in the planetary systems
77
Mostly dormant comets in the NEO population and the meteoroid streams that
87
Initial linking methods and their classification
301
OBSERVATORIES
321
Spacewatch preparations for the era of deep allsky surveys
329
The next decade of Solar System discovery with PanSTARRS
341
Comprehensive NEO Detection Characterization and Orbits
353
Searching for near Earth objects using Lowell observatorys Discovery Channel
363
NEOrelated scientific and outreach activities at KLENOT
371
Astrometry of small Solar System bodies at the Moletai observatory
377

Properties of meteoroids from different classes of parent bodies
107
Equipment meth
121
Is the nearEarth asteroid 2000 PGз an extinct comet?
135
Imaging the NEO population
151
NE A rotations and binaries
167
Physical models of asteroids from sparse photometric data
191
Products
211
Collision and impact simulations including porosity
223
Similarities and discrepancies between Main Belt
239
The power of groundbased midinfrared observations
261
NearEarthobject identification over apparitions using nbody ranging
281
Kharkiv study nearEarth asteroids
385
The observations of near Earth objects by the automatic mirror astrograph
391
The nature of asteroid Itokawa revealed by Hayabusa
401
The cometary impactor flux at the Earth
441
Albedo and size of 99942 Apophis from polarimetric observations
451
The IAU role
467
Near Earth Object impact simulation tool for supporting the NEO mitigation
477
15 years ago now and in the near future
489
Object index
495
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