| |
 |
| Paper: |
Magnetic Fields are not Ignorable in the Dynamics of Disks |
| Volume: |
230, Galaxy Disks and Disk Galaxies |
| Page: |
169 |
| Authors: |
Battaner, E.; Florido, E.; Guijarro, A. |
| Abstract: |
Magnetic fields are considered to be dominant when εB>=εK, being εB=B2/8π the magnetic energy density and εK=1/2 ρ &thetas;2 the rotation energy density, for a conventional moderate B = 1μG. They are considered to be negligible when εB<εK for B~10 μG. With no assumption and no theoretical calculation, we show that magnetic fields cannot be ignored in the outer parts of a galaxy like the Milky Way and in the whole disk of a dwarf galaxy. |
|
|
|
|
|
