PDS: The Planetary Atmospheres NodePlanetary Atmospheres
Cover Page/Proposal Summary
ROSS-00 NRA 00-OSS-01
Date Due: 4/28/2000
|
This proposal shall be used and disclosed for evaluation purposes only, and a copy of this Government notice shall be applied to any reproduction or abstract thereof. Any authorized restrictive notices that the submitter places on this proposal shall also be strictly complied with. Disclosure of this proposal for any reason outside the Government evaluation purposes shall be made only to the extent authorized by the Government. |
| Proposal Type: New Proposal |
| Proposal Category: Comets |
| Major Equipment Proposal? No |
| Do you intend to submit an Education/Public Outreach (E/PO) proposal? No |
| Proposal Title: |
| Modeling of Cometary Atmospheres |
| Abbreviated Proposal Title: |
| Modeling of Cometary Atmospheres |
| Principal Investigator: |
| Dr. Tamas I. Gombosi Atmos. Oceanic & Space Sci. Space Physics Research Lab. Univ. Michigan 1416 Space Research Building 2455 Hayward Ann Arbor, MI 48109-2143 Phone: 734-764-7222 Fax: 734-647-3083 E-mail: tamas@umich.edu |
| Signature | Date |
| _____________________________________ | ____________ |
| Co-Investigators and Collaborators: | |||
| Type | Name | Affiliation | |
| Sci Co-I | Dr. Michael R. Combi | U. Michigan | mcombi@umich.edu |
| Sci Collab | Prof. Christopher M. Anderson | U. Wisconsin | anderson@astro.wisc.edu |
| Sci Collab | Dr. Darren L. De Zeeuw | U. Michigan | darrens@umich.edu |
| Sci Collab | Prof. Michael Mendillo | Boston University | mendillo@buasta.bu.edu |
| Sci Collab | Prof. Kenneth G. Powell | U. Michigan | powell@umich.edu |
| Sci Collab | Dr. Nathan A. Schwadron | U. Michigan | nathanas@umich.edu |
Proposal Summary:
A continuing effort is proposed, aimed at improving our understanding of the comet solar-wind interaction, cometary ion chemistry, and cometary high energy processes, through a combination of state-of-the-art modeling with the analysis and interpretation of spectroscopic and morphological observations of the cometary plasma environment. Our overall comet modeling program is unique in that our combined efforts address the full range of cometary coma phenomena with state-of-the-art numerical simulation codes, and in that we have experience in applying these codes directly to the analysis of observations. Specific objectives for the next funding period include: * To further develop our 3D solution adaptive magnetohydrodynamic (MHD) model of the comet solar-wind interaction with ion chemistry by solving for the electron temperature explicitly and including multiple species for MHD. * To expand significantly the charge exchange chemistry set for application to the observations of cometary X-rays and to apply to new observations of comets expected through our collaborations with the Chandra, XMM, and FUSE observing programs. * To apply a combined heliosphere/cometary MHD/ion-chemistry model to the exciting recent discovery of the cometary tail of comet Hyakutake observed by Ulysses at 3.7 AU when the comet itself was only 0.3 AU from the sun. * To combine our MHD and dusty gas dynamic model into a fully coupled neutral-plasma model for the coma. * To use our models for interpreting observations from a variety of comets, including Hale-Bopp, Hyakutake, LINEAR S4, and other target-of-opportunity comets.
Certification of Compliance with Applicable Executive Orders and U.S. Code
By submitting the proposal identified in this Cover Sheet/Proposal Summary in response to this NRA or AO, the Authorizing Official of the proposing institution (or the individual proposer if there is no proposing institution) as identified below:
Willful provision of false information in this proposal and/or its supporting documents, or in reports required under an ensuing award, is a criminal offense (U.S. Code, Title 18, Section 1001).
