TY - GEN
T1 - Induced fragmentation of asteroids during close encounters
AU - Tester, Bryan
AU - Vasile, Massimiliano
N1 - This paper was originally presented at the AAS/AIAA Astrodynamics Specialist Conference held August 9-13, 2015, Vail, Colorado, U.S.A., and was originally published in the American Astronautical Society (AAS) publication Astrodynamics 2015, edited by Manoranjan Majji, James D. Turner, Geoff G. Wawrzyniak and William Todd Cerven, American Astronautical Society (AAS) Advances in the Astronautical Sciences, Volume 156, 2016, pp. 4205-4220 (Copyright © 2016 by American Astronautical Society Publications Office, P.O. Box 28130, San Diego, CA 92198, U.S.A.; Web Site: http://www.univelt.com
PY - 2015/8/13
Y1 - 2015/8/13
N2 - We consider the behaviour of rotating binary asteroids as they pass through Earth's Hill sphere, with primary interest in the effect the tidal force on the interaction between the two components of the binary and their post-encounter trajectories. We focus on contact binary asteroids bound by a regolith bridge, using both direct numerical simulation and analytical approaches to investigate the sensitivity of the system to different parameters. We find that the system is most sensitive to the angle between the binary pair and the orbital path, having a significant impact upon the energy change during a fragmentation event. We also give the results of some basic simulations of a deflection attempt on such an object.
AB - We consider the behaviour of rotating binary asteroids as they pass through Earth's Hill sphere, with primary interest in the effect the tidal force on the interaction between the two components of the binary and their post-encounter trajectories. We focus on contact binary asteroids bound by a regolith bridge, using both direct numerical simulation and analytical approaches to investigate the sensitivity of the system to different parameters. We find that the system is most sensitive to the angle between the binary pair and the orbital path, having a significant impact upon the energy change during a fragmentation event. We also give the results of some basic simulations of a deflection attempt on such an object.
KW - rotating binary asteroids
KW - near earth asteroids
KW - asteroid trajectories
KW - Hill sphere
KW - tidal force
KW - regolith bridge
KW - binary pair
KW - orbital path
KW - fragmentation
KW - deflection
UR - http://www.scopus.com/inward/record.url?scp=85007311333&partnerID=8YFLogxK
UR - http://www.univelt.com/book=5315
UR - http://www.space-flight.org/docs/2015_astro/2015_astro.html
M3 - Conference contribution book
AN - SCOPUS:85007311333
SN - 9780877036296
T3 - Advances in Astrnautical Sciences
SP - 3687
EP - 3700
BT - Astrodynamics 2015
A2 - Majji, Manoranjan
A2 - Turner, James D.
A2 - Wawrzyniak, Geoff G.
A2 - Cerven, William Todd
CY - San Diego, California
T2 - AAS/AIAA Astrodynamics Specialist Conference, ASC 2015
Y2 - 9 August 2015 through 13 August 2015
ER -