Coronal holes. The height of the chromosphere, and the origin of spicules
Journal Article
·
· Astrophys. J.; (United States)
Analysis of 650 microphotometric scans across the solar limb reveals that the H..cap alpha.. chromosphere is slightly (about 4%) taller inside coronal holes than in quiet regions outside holes. The change in height occurs as a step at the hole boundaries; this suggests that the increase with latitude in the average height of spicules found by Lippincott and by Athay was the average result of upward steps at the polar hole boundaries rather than a gradual latitude trend.
- Research Organization:
- California Institute of Technology, Big Bear Solar Observatory
- OSTI ID:
- 6685183
- Journal Information:
- Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 241:1; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
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