Abstract
Alfven waves are shown to be readily generated by mode conversion from fast MHD waves reflecting off the steep atmospheric Alfven speed gradient in active region atmospheres. A simple analytic description of this process in terms of an `interaction integral indicates that it is spread over many vertical scale heights, and indeed fills the whole active region chromosphere for waves of moderate helioseismic degree el, even up to el=1000 or more. This suggests that active region chromospheres are Alfven wave factories.
| Original language | English |
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| Title of host publication | Proceedings of the First Asia-Pacific Solar Physics Meeting |
| Editors | Arnab Rai Choudhuri, Dipankar Banerjee |
| Place of Publication | India |
| Publisher | Astronomical Society of India |
| Pages | 221 - 227 |
| Number of pages | 7 |
| Volume | 2 |
| ISBN (Print) | 9788192292601 |
| Publication status | Published - 2011 |
| Event | Asia-Pacific Solar Physics Meeting (APSPM 2011) - Indian institute of Astrophysics, Bangalore, India Duration: 21 Mar 2011 → 24 Mar 2011 Conference number: 1st https://www.iiap.res.in/meet/apspm/ |
Conference
| Conference | Asia-Pacific Solar Physics Meeting (APSPM 2011) |
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| Country/Territory | India |
| City | Bangalore |
| Period | 21/03/11 → 24/03/11 |
| Internet address |