Magnetic helicity in galactic dynamos
| dc.creator | Subramanian, Kandaswamy | |
| dc.date | 2002-04-26 | |
| dc.date.accessioned | 2026-07-07T02:03:30Z | |
| dc.date.available | 2026-07-07T02:03:30Z | |
| dc.description | Magnetic fields correlated on kiloparsec scales are seen in spiral galaxies. Their origin could 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 inspite of the helicity constraint. | |
| dc.description | 7 pages, Invited talk at the 21st meeting of the Astronomical Society of India, Feb 5 - 8, IUCAA, Pune. To be published in the Bulletin of the Astronomical Society of India | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0204450 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0204450 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/4405 | |
| dc.subject | Astrophysics | |
| dc.title | Magnetic helicity in galactic dynamos | |
| dc.type | text |