Show simple item record

dc.contributor.authorChesny, David L.
dc.contributor.authorOluşeyi, Hakeem M.
dc.contributor.authorOrange, Norton Brice
dc.contributor.authorChampey, Patrick R.
dc.date.accessioned2016-10-21T20:00:49Z
dc.date.available2016-10-21T20:00:49Z
dc.date.issued2015-12-01
dc.identifier.citationChesny, D. L., Oluseyi, H. M., Orange, N. B., & Champey, P. R. (2015). Quiet-sun network bright point phenomena with sigmoidal signatures. Astrophysical Journal, 814(2) doi:10.1088/0004-637X/814/2/124en_US
dc.identifier.urihttp://hdl.handle.net/11141/1089
dc.description.abstractUbiquitous solar atmospheric coronal and transition region bright points (BPs) are compact features overlying strong concentrations of magnetic flux. Here, we utilize high-cadence observations from the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory to provide the first observations of extreme ultraviolet quietSun (QS) network BP activity associated with sigmoidal structuring. To our knowledge, this previously unresolved fine structure has never been associated with such small-scale QS events. This QS event precedes a bi-directional jet in a compact, low-energy, and low-temperature environment, where evidence is found in support of the typical fan-spine magnetic field topology. As in active regions and micro-sigmoids, the sigmoidal arcade is likely formed via tether-cutting reconnection and precedes peak intensity enhancements and eruptive activity. Our QS BP sigmoid provides a new class of small-scale structuring exhibiting self-organized criticality that highlights a multiscaled self-similarity between large-scale, high-temperature coronal fields and the small-scale, lower-temperature QS network. Finally, our QS BP sigmoid elevates arguments for coronal heating contributions from cooler atmospheric layers, as this class of structure may provide evidence favoring mass, energy, and helicity injections into the heliosphere.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is made available in accordance with the publisher’s policy. It may be subject to U.S. copyright law.en_US
dc.rights.urihttps://aas.org/publications/aas-copyright-policyen_US
dc.titleQuiet-sun network bright point phenomena with sigmoidal signaturesen_US
dc.typeArticleen_US
dc.identifier.doi10.1088/0004-637X/814/2/124


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record