Introduction: The Stardust mission obtained the first dust samples in the coma of an active comet for laboratory analyses. Earlier chemical data on dust from an active comet came from the GIOTTO and VEGA missions to comet Halley [1]. For decades aggregate interplanetary dust particles (IDPs) were available from parent bodies other than those of meteorites [2], i.e. comets or comet-like bodies. ...

• Spring 1999: Mitch Harris and Shripad Thite • Summer 1999 (IMCS): Mitch Harris • Summer 2000 (IMCS): Mitch Harris • Fall 2000: Chris Neihengen, Ekta Manaktala, and Nick Hurlburt • Spring 2001: Brian Ensink, Chris Neihengen, and Nick Hurlburt • Summer 2001 (I2CS): Asha Seetharam and Dan Bullok • Fall 2002: Erin Wolf, Gio Kao, Kevin Small, Michael Bond, Rishi Talreja, Rob McCann, and Yasutaka F...

In this paper, a complex dynamical study of a parametric Chebyshev-Halley type family of iterative methods on quadratic polynomial is presented. The stability of the fixed points is analyzed in terms of the parameter of the family. We also calculate the critical points building their corresponding parameter planes which allow us to analyze the qualitative behaviour of this family. Moreover, we ...

Pitch-angle volution of newborn cometary ions is studied by means of one-dimensiona,1 electromagnetic hybrid computer simulations ofhomogeneous plasmas. Newborn ions are injected into the simulations at a constant rate, with a velocity relative to the solar wind which makes an angie a with respect to the ambient magnetic field. The simulations are done with relatively weak ion injection rates c...