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http://hdl.handle.net/2248/2821| Title: | Magnetic helicity in galactic dynamos |
| Authors: | Subramanian, K |
| Keywords: | Galaxies Galactic Magnetic Fields Dynamos Magnetic Helicity |
| Issue Date: | Sep-2002 |
| Publisher: | Astronomical Society of India |
| Citation: | BASI, Vol. 30, No. 3, pp. 715 - 721 |
| Abstract: | Magnetic fields correlated on kiloparsec scales are seen in spiral galaxies. Their origin ~ould be due to amplification of a small seed field by a turbulent galactic dynamo. We review the current status of the galactic dynamo, especially the constraints imposed by magnetic helicity conservation. We estimate the minimal strength of the large-scale magnetic field which could arise in spite of the helicity constraint. |
| URI: | http://hdl.handle.net/2248/2821 |
| Appears in Collections: | BASI Publications |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Subramanian_K.pdf | 276.4 kB | Adobe PDF |  View/Open |
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