The Relations between Chromospheric Features and Photospheric Magnetic Fields
Abstract
High resolution photographic magnetograms are compared with Hα filtergrams (both on- and off - band) for a wide variety of solar features. It is verified that Hα filaments overlie neutral lines or bands and that Hα plages always occur at magnetic field clumps. However, the brightness of Hα plages bear no relation to magnetic field strength or polarity, and the direction of the magnetic field with respect to threads and filaments remains obscure. Counter-examples can be found for virtually every `rule' that has been formulated so far.
- Publication:
-
Solar Physics
- Pub Date:
- May 1972
- DOI:
- 10.1007/BF00231086
- Bibcode:
- 1972SoPh...24...98F
- Keywords:
-
- Magnetic Field;
- High Resolution;
- Field Strength;
- Unique Solution;
- Magnetic Field Strength