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Light Walls Around Sunspots Observed by the Interface Region Imaging Spectrograph
- Source :
- A&A 589, L7 (2016)
- Publication Year :
- 2016
-
Abstract
- The Interface Region Imaging Spectrograph (IRIS) mission provides high-resolution observations of the chromosphere and transition region. We try to determine whether the light walls exist somewhere else in active regions besides light bridges. Employing half-year high tempo-spatial data from the IRIS, we find lots of light walls either around sunspots or above light bridges. For the first time, we report one light wall near an umbral-penumbral boundary and another along a neutral line between two small sunspots. These new observations reveal that these light walls are multi-layer and multi-thermal structures which occur along magnetic neutral lines in active regions.<br />Comment: 4 pages, 4 figures, Accepted for publication in A&A Letters
- Subjects :
- Astrophysics - Solar and Stellar Astrophysics
Subjects
Details
- Database :
- arXiv
- Journal :
- A&A 589, L7 (2016)
- Publication Type :
- Report
- Accession number :
- edsarx.1604.00485
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1051/0004-6361/201628216