Monday 14 October 2013

Solar Flares

A solar flare is a sudden brightening over the Sun's surface which releases immense energy!
An average solar flare is said to release about 6 x 10^25 joules of energy which is about a sixth of the total energy output of the sun each second.
Let's put that in normal words?
Imagine 160,000,000,000 megatons of TNT exploding right next to you.
Yep. That's the energy released in an average solar flare.  A solar flare is followed by a coronal mass ejection or a CME. The solar flare releases immense energy and also ejects clouds of electrons, ions and atoms through the corona of the sun into space which reach Earth in about two days time.

An average solar flare heats the solar-atmosphere by tens of millions of kelvin causing  the electrons, protons and the other heavier ions to accelerate at immense speed (Almost near the speed of light).
The X-rays and UV rays emitted by the solar flares can affect Earth's ionosphere and disrupt the long-range radio communications. 

When were solar flares first observed? 

Solar flares were first observed in the year 1859.

Who was the first people to observe a Solar Flare?
Richard Christopher Carrington and Richard Hodgson were the first people to observe a solar flare.
Richard Hodgson in 1859 observed localised visible brightenings of small areas within a sunspot group.
Stellar flares have also been observed on a variety of other stars.

Occurence of Solar Flares?
The occurence of a Solar Flare may vary from serveral times a day or to less than a week. 
Small Solar flares occur more frequently.
The most important question of all :

When and how do Solar Flares occur? 

Solar Flares occur when highly accelerated charged particles (Or say electrons) interact with the plasmic medium of the Sun.

Looks like that sums it up, peeps.

No comments:

Post a Comment