Japan Geoscience Union Meeting 2015

Presentation information


Symbol M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS35] Why is this planet to be the Earth? -the role of water

Sun. May 24, 2015 6:15 PM - 7:30 PM Convention Hall (2F)

Convener:*Nobukazu Seama(Department of Planetology, Graduate School of Science, Kobe University), Yoshiyuki Tatsumi(Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology), Keiji Ohtsuki(Graduate School of Science, Kobe University), Takashi Nakagawa(JAMSTEC/MAT), Ikuo Katayama(Department of Earth and Planetary Systems Science, Hiroshima University), Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Akiko Nakamura(Graduate School of Science, Kobe University)

6:15 PM - 7:30 PM

[MIS35-P03] Transportation of NEOs from their source region and its dependence on collisional disruption

*Takashi ITO1 (1.CfCA, NAOJ, NINS)

Keywords:near-Earth asteroids, collisional disruption

The dynamical origin and evolution of Near-Earth Objects (NEOs) still have many issues yet to be solved. Recent discovery of NEO families has raised another question, indicating that the asteroid transportation efficiency from the main belt could be much lower than what has been considered. Also, how much contribution the Oort Cloud cometary objects has over the total population of NEO is not clear at all. In this presentation we will make a brief summary as to what is known and not known about the dynamical evolution of NEOs, and tries to show several ways for future studies.