News

Metsähovi measures the strongest Solar event so far in the current Solar cycle

On June 10, 2014, Aalto University Metsähovi Radio Observatory measured the strongest burst so far in the current Solar cycle in an active region.

Its strength was classified as X2.2 and it was proceeded with another strong burst with a strength of X1.5. The type X bursts are the strongest of all Solar bursts. The time of occurrence of the two events were 11:36-11:42 UT and 12:36-12:52 UT. It is highly atypical that such strong bursts follow each other within a short time period as this.

 

 The active region, AR12087, can be seen in the radio frequency 37 GHz, in the left side of the Solar map (Figure 1). Both events were also measured at a lower frequency of 11.2 GHz (Figure 2). The stronger, X2.2, event was visible even in the dm range of the Callisto system (Figure 3). All of the Aalto University Metsähovi Radio Observatory's measurement devices used for Solar research caught the activity, which is quite remarkable.

In the current Solar cycle there might have been stronger bursts, but this is the most powerful event measured at Metsähovi. The strong Solar activity continues even at the moment.

 

Figure 1. The Solar map measured on June 10, 2014. Note the active region, AR12087, on the left.

 

Figure 2. The X2.2 and X1.5 Solar events measured at 11.2 GHz.

 

Figure 3. The X2.2 Solar event measured by the Callisto system.
 
For more information about the event contact:
 
PhD Juha Kallunki
[email protected]
+358 29 442 4852
 
More information about Solar research at Aalto University Metsähovi Radio Observatory can be found here:

https://www.aalto.fi/en/metsahovi-radio-observatory/solar-research

  • Published:
  • Updated:
Share
URL copied!

Related news

Pitkäaikaissairauksien hoito on pirstaloitunutta ja kallista – ratkaisua haetaan virtuaalisesta hoidonohjaamosta
Research & Art Published:

Virtual care management system for solving fragmentation of chronic diseases treatment

The project, which has a budget of millions of euros and is led by Aalto University, involves University of Helsinki and numerous companies in the healthcare field.
Painted trees at Kipsari glass wall
Campus, Research & Art, Studies Published:

Holiday break at Takeout

Takeout will be closed 19.12.2020 - 10.01.2021
Nitin Sawhney standing outdoors with his bike, green grass and trees on the background
Research & Art Published:

Nitin Sawhney receives an Academy of Finland grant for analyzing and reconstructing crisis narratives

Professor Sawhney hopes that his collaborative research will offer insights into how crisis narratives emerge in society during the global pandemic
museum of impossible forms
Research & Art Published:

Museum of Impossible Forms wins State Art Prize 2020

ViCCA congratulates its students and alumni who have been active (and often founding) members of the Museum of Impossible Forms (est. 2017) – an anti-racist and queer-feminist cultural center in the suburb of Kontula – for the 2020 State Art Prize that they received from the Arts Promotion Centre Finland.