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Swift UVOT Grism Spectroscopy of Comets: A First Application to C/2007 N3 (Lulin)
Comets Individual Methods Data Analysis –Techniques Image Spectroscopy – Ultraviolet planetary systems
2010/11/11
We observed comet C/2007 N3 (Lulin) twice on UT 28 January 2009, using the UV grism of the Ultraviolet and Optical Telescope (UVOT) on board the Swift Gamma Ray Burst space observatory. Grism spectros...
A Unified Theory for the Effects of Stellar Perturbations and Galactic Tides on Oort Cloud Comets
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/23
We examine the effects of passing field stars on the angular momentum of a nearly radial orbit of an Oort cloud comet bound to the Sun. We derive the probability density function (PDF) of the change i...