Yarkovsky V-shape identification of asteroid families
نویسندگان
چکیده
منابع مشابه
Yarkovsky/YORP chronology of asteroid families
Asteroid families are the byproducts of catastrophic collisions whose fragments form clusters in proper semimajor axis, eccentricity, and inclination space. Although many families have been observed in the main asteroid belt, only two very young families, Karin and Veritas, have well-determined ages. The ages of other families are needed, however, if we hope to infer information about their eje...
متن کاملDynamical spreading of asteroid families by the Yarkovsky effect.
The orbital distributions of prominent asteroid families are thought to be direct by-products of catastrophic disruption events among diameter D greater, similar 100 kilometer bodies. Ejection velocities derived from studying observed families, however, are surprisingly high compared with results from impact experiments and simulations. One way to resolve this apparent contradiction is by assum...
متن کاملAsteroid 1566 Icarus’sSize, Shape, Orbit, and Yarkovsky Drift from Radar Observations
Near-Earth asteroid (NEA) 1566 Icarus ( = a 1.08 au, e=0.83, = i 22 .8) made a close approach to Earth in 2015 June at 22 lunar distances (LD). Its detection during the 1968 approach (16 LD) was the first in the history of asteroid radar astronomy. A subsequent approach in 1996 (40 LD) did not yield radar images. We describe analyses of our 2015 radar observations of Icarus obtained at the ...
متن کاملTHE YARKOVSKY AND YORP EFFECTS: Implications for Asteroid Dynamics
The Yarkovsky and YORP (Yarkovsky-O’Keefe-Radzievskii-Paddack) effects are thermal radiation forces and torques that cause small objects to undergo semimajor axis drift and spin vector modifications, respectively, as a function of their spin, orbit, and material properties. These mechanisms help to (a) deliver asteroids (and meteoroids) with diameter D < 40 km from their source locations in the...
متن کاملInterlopers within Asteroid Families
A statistical method for the evaluation of the probable amount of interlopers included in the most recently identi ed asteroid families is developed. The method is based on the analysis of the local properties of the asteroidal distribution in the zones of the proper element space in which families are located. An application to the most important families listed by Zappal a et al. [1995, Icaru...
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ژورنال
عنوان ژورنال: Icarus
سال: 2017
ISSN: 0019-1035
DOI: 10.1016/j.icarus.2016.09.029