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Initial overview of disconnection events in halley's comet 1986
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Snow, M. Yi, Y. Brandt, John C. Randall, Cora E. |
| Copyright Year | 1992 |
| Description | We present an initial overview of the disconnection events (DE's) in Comet Halley in 1986. Although disconnection events are arguably the most spectacular of all dynamic comet phenomena, the mechanisms by which they occur are not fully understood. It is generally believed that the solar wind plays a major role in determining when disconnection events occur, but the details of the solar wind/cometary interactions responsible for initiating the tail disconnection are still under debate. The three most widely accepted models are: (1) high speed streams in the solar wind cause the tail to disconnect due to pressure effects; (2) decreased production of cometary ions in a high speed stream allows magnetic field to slip away from the comet; and (3) the tail disconnects after frontside reconnection of the interplanetary magnetic field (IMF) as the comet crosses a magnetic field sector boundary. We find that the front-side magnetic reconnection model is the best explanation for the DE's we have considered. |
| File Size | 375981 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930009945 |
| Archival Resource Key | ark:/13960/t2d847k77 |
| Language | English |
| Publisher Date | 1992-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Pressure Effects Atmospheric Ionization Magnetic Field Reconnection Astronomical Models Comet Tails Ions Mathematical Models Halley's Comet Solar Wind Interplanetary Magnetic Fields Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
