Sources of zodiacal dust (2007)
Fractions of asteroidal particles, particles originating beyond Jupiter's orbit (including trans-Neptunian particles), and cometary particles originating inside Jupiter's orbit among zodiacal dust...
Automatic Removal of Cosmic Ray Signatures on Deep Impact CCDs (2006)
Ipatov, S. I., A'Hearn, M. F., Klaasen, K. P.
The results of recognition of cosmic ray (CR) signatures on a single image were analyzed for several codes written by several authors. For most visual images made during low solar activity at...
Migration of Comets to the Terrestrial Planets (2006)
We studied the orbital evolution of Jupiter-family comets (JFCs), Halley-type comets (HTCs), and long-period comets, and probabilities of their collisions with planets. In our runs the probability of...
Ipatov, S. I., Kutyrev, A. S., Madsen, G. J., Mather, J. C., Moseley, S. H., Reynolds, R. J.
We present simulated observations of the Doppler shifts of the solar Mg I Fraunhofer line scattered by asteroidal, cometary, and trans-Neptunian dust particles. The studies are based on the results...
Migration of dust particles to the terrestrial planets (2006)
The orbital evolution of asteroidal, trans-Neptunian, and cometary dust particles under the gravitational influence of planets, the Poynting-Robertson drag, radiation pressure, and solar wind drag...
New Observations and Models of the Kinematics of the Zodiacal Dust Cloud (2006)
Madsen, G. J., Reynolds, R. J., Ipatov, S. I., Kutyrev, A. S., Mather, J. C., Moseley, S. H.
We report on new observations of the motion of zodiacal dust using optical absorption line spectroscopy of zodiacal light. We have measured the change in the profile shape of the scattered solar Mg I...
Deep Impact: Excavating comet Tempel 1 (2005)
A'Hearn, M. F., Belton, M. J. S., Delamere, W. A., Kissel, J., Klaasen, K. P., McFadden, L. A., ...
Migration of Small Bodies and Dust to Near-Earth Space (2004)
The orbital evolution of Jupiter-family comets (JFCs), resonant asteroids, and asteroidal, trans-Neptunian, and cometary dust particles under the gravitational influence of planets was integrated....
Migration of Small Bodies and Dust to the Terrestrial Planets (2004)
We integrated the orbital evolution of 30,000 Jupiter-family comets, 1300 resonant asteroids, and 7000 asteroidal, trans-Neptunian, and cometary dust particles. For initial orbital elements of bodies...
Formation and Migration of Trans-Neptunian Objects (2004)
Trans-Neptunian objects (TNOs) with diameter d>100 km moving now in not very eccentric orbits could be formed directly by the compression of large rarefied dust condensations (with semi-major axes...
Migration of Jupiter-Family Comets and Resonant Asteroids to Near-Earth Space (2003)
The orbital evolution of about 20000 Jupiter-crossing objects and 1500 resonant asteroids under the gravitational influence of planets was investigated. The rate of their collisions with the...
Migration of Interplanetary Dust (2003)
Ipatov, S. I., Mather, J. C., Taylor, P. A.
We numerically investigate the migration of dust particles with initial orbits close to those of the numbered asteroids, observed trans-Neptunian objects, and Comet Encke. The fraction of silicate...
Migration of Trans-Neptunian Objects to the Terrestrial Planets (2003)
The orbital evolution of more than 22000 Jupiter-crossing objects under the gravitational influence of planets was investigated. We found that the mean collision probabilities of Jupiter-crossing...
Migration of Asteroidal Dust (2003)
Ipatov, S. I., Mather, J. C., Taylor, P. A.
We numerically investigate the migration of dust particles with initial orbits close to those of the numbered asteroids. The fraction of silicate particles that collided with the Earth during their...
Migration of Jupiter-family comets and resonant asteroids to near-Earth space (2003)
We estimated the rate of comet and asteroid collisions with the terrestrial planets by calculating the orbits of 13000 Jupiter-crossing objects (JCOs) and 1300 resonant asteroids and computing the...
Comet and Asteroid Hazard to the Terrestrial Planets (2002)
We estimated the rate of comet and asteroid collisions with the terrestrial planets by calculating the orbits of 13000 Jupiter-crossing objects (JCOs) and 1300 resonant asteroids and computing the...
Formation and migration of trans-Neptunian objects and asteroids (2002)
The evolution of thousands of orbits of Jupiter-family comets and asteroids under the gravitational influence of planets was calculated. Comparison of the results obtained by a symplectic method with...
Some large trans-Neptunian objects could be formed by the compression of rarefied dust condensations, but not by the accumulation of smaller planetesimals. A considerable portion of near-Earth...
Formation and Migration of Trans-Neptunian Objects (2002)
We suppose that some large trans-Neptunian objects could be formed directly by the compression of rarefied dust condensations of the protoplanetary disk, but not by the accretion of smaller...
Migration of asteroids from the 3/1 and 5/2 resonances with Jupiter to the Earth (2002)
The orbital evolution of asteroids from the 3:1 and 5:2 resonances with Jupiter under the gravitational influence of planets was investigated both by the Bulirsh-Stoer method and by a symplectic...
Migration of matter from the Edgeworth-Kuiper and main asteroid belts to the Earth (2002)
A considerable portion of near-Earth objects could have come from the trans-Neptunian belt. Some of them have aphelia deep inside Jupiter's orbit during more than 1 Myr.
Comet Hazard to the Earth (2001)
Migration of trans-Neptunian objects to the Earth is considered. Due to the gravitational influence of large trans-Neptunian objects and mutual collisions, some objects can get such orbits, from...
Evolution of the orbits of the objects P/1996 R2 (Lagerkvist) and P/1996 N2 (Elst-Pizarro) (1997)
Two new interesting objects were observed recently in the asteroid belt. The object P/1996 R2 (Lagerkvist) has a Jupiter-crossing orbit. On August 7, 1996 Elst reported his discovery of the object...