IRIS views Nano-Flares on the Sun

  • Released Monday, September 21, 2020
  • Updated Thursday, March 4, 2021 at 8:53AM
  • ID: 4766

Nanoflares, energy releases powered by small magnetic reconnection events in the solar coronal loops, have long been hypothesized as one of the sources for heating the solar corona to million-degree temperatures. Much of the evidence for this has been indirect, and difficult to distinguish from other hypothesized mechanisms.

In these visualizations, we present observational evidence of the IRIS imager detecting nanoflares in a coronal loop. In the IRIS imager, overlaid on AIA 304 angstrom imagery, the events stand out as jet-like protrusions roughly perpendicular to the curve of the coronal loop.

In this data, we see several strong nano-flare events near the 14:43 timestamp.


Please give credit for this item to:
NASA's Scientific Visualization Studio


This visualization is based on the following papers:


This visualization is related to the following missions:

Datasets used in this visualization

SDO AIA 171 (A.K.A. 171 Filter) (Collected with the AIA sensor)
SDO AIA 304 (A.K.A. 304 Filter) (Collected with the AIA sensor)
IRIS Slit-Jaw Imager (A.K.A. SJI) (Collected with the Imager sensor)
Observed Data | LMSAL

Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

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