Spicules are thin jets of plasma that are accelerated through the solar chromosphere. They are separated into type I and type II spicules, where type II spicules are more violent and are more ubiquitous. Even though type II spicules are more ubiquitous, their origin is not yet fully understood.
As spicules appear to be rooted in the photosphere, energy release from magnetic reconnection at their footpoints serves as a potential candidate to be one of the drivers for type II spicules. Ellerman bombs, observed as enhanced emission in the Balmer lines, can be used as tracers of small-scale magnetic reconnection in the lower atmosphere.
Recent high-resolution observations have revealed that Ellerman bombs do not only appear in active regions, but also appear all over the quiet Sun. Here, they are referred to as quiet Sun Ellerman bombs (QSEBs).
This Friday colloquium will be hybrid. Attendees can therefore participate either in-person or via Zoom. Please join via Zoom at
https://uio.zoom.us/j/69001043754?pwd=cEJpbVE5ci9PdWNtRld2TDNNcGtKdz09
Meeting ID:690 0104 3754
Passcode: PeiseStua3
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