Statistics – Applications
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phdt........51l&link_type=abstract
PhD Dissertation, Florida Univ. Gainesville, FL United States
Statistics
Applications
4
Zodiacal Dust, Asteroids, Comets, Interplanetary Dust, Planetary Radiation, Long Term Effects, Cosmology, Evolution (Development), Astronomical Models, Three Dimensional Models, Orbital Elements, Particle Diffusion, Infrared Astronomy Satellite, Supercomputers, Pressure Drag, Radiation Pressure, Perturbation Theory, Poynting-Robertson Effect, Integrators, Applications Programs (Computers)
Scientific paper
Asteroids and comets are the two major sources of the interplanetary dust particles that populate the zodiacal cloud. But how the particles evolve and in exactly what proportion asteroid and comets contribute to this cloud are questions that have never been convincingly answered. in this dissertation we try to answer these questions by studying the dynamical evolution of asteroidal and cometary particles and constructing a physical model to compare with observations from the Infrared Astronomical Satellite (IRAS). We first study the orbital evolution of asteroidal and cometary particles under the influence of planetary perturbations, radiation pressure, Poynting-Robertson drag, and corpuscular drag. Analytically, we complete the development of a 'dynamical' secular perturbation theory for asteroidal particles. We use a numerical integrator, RADAU, on an IBM ES/9000 supercomputer to study the orbital evolution of thousands of particles, from both asteroids and comets, systematically, from their origins to a heliocentric distance of around 0.1 AU. We then analyze the results and apply the distributions of the orbital elements from the dynamical study to a three-dimensional model, SIMUL, which generates the observed flux from a given number of orbits with a known distribution of orbital elements, and compares the results with the IRAS observations. We conclude that it is possible to construct a zodiacal cloud model to fit the shape of the observed cloud by a combination of approximately 27% asteroidal particles and 73% cometary particles.
No associations
LandOfFree
Dynamical evolution of asteroidal and cometary particles and their contribution to the zodiacal cloud does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dynamical evolution of asteroidal and cometary particles and their contribution to the zodiacal cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical evolution of asteroidal and cometary particles and their contribution to the zodiacal cloud will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1264461