EFEFUTURO.- The Sun has 4,650 million years and sunspots and eruptions occur since the Sun is sun. But what happens when the star is at its maximum magnetic activity? Is there more eruptions? Are there any dangers to the people?
The sun has a cycle of eleven years (average) over which your magnetic activity varies between a minimum and a maximum, when a greater number of sunspots that can be seen as darker areas recorded its lowest temperature.
The first to observe them telescope was Galileo Galilei and know that their number ranges from virtually none to over a hundred, decreasing again in the eleven years Now the sun is at its peak of magnetic activity and large sunspots are appearing, totaling 30 times the size of Earth, which had not happened since 2003 and has put in notice to the astrophysics community.
The eruptions or flares are not the same as sun spots, but there is a relationship. The spots are the store that provides the energy reserves for breakouts.
These are explosions in the Sun’s photosphere that occur with increased brightness, the radiative energy violent expulsion of electrically charged particles.
And that is when the particles are highly energy could overcome the natural shield that holds the Earth magnetosphere or magnetic -Campo, which could damage the -móviles communications, GPS, power stations, etc. –
A more sunspots further eruptions. On October 19, about 5:57 pm Spanish, one of these flares was recorded as day 22, about 15:28 hours.
This is confirmed Efe Socas-Hector Navarro, a researcher at the Institute de Astrofisica de Canarias (IAC), who has stated that by now you have seen are “flares” (flares), which so far have not been accompanied by material ejection (CME, for its acronym in English -coronal mass ejection or coronal mass ejection -.)
“We do not know why some flares are accompanied by CME and sometimes not. The associated CME are more dangerous to us, “says the researcher, who adds:”. However we must be vigilant “
According Socas-Navarro, two of the eruptions registered these days have been cataloged class X
The flares are divided into different categories depending on the energy released, with a logarithmic scale, not linearly. A, B, C, M and X, and within each category are assigned a number from 1 to 9. Thus, an X flare is 10 times more powerful than M, which in turn is 10 times more powerful than a C.
When the X rating is exceeded numbering continues beyond 10. For example, the so-called “Carrington event” (the most powerful solar storm ever recorded and should -1859- named after British astronomer Richard Carrington) is believed to be due X40, 40 times more potent than that of October 19 and about 34 times more than the 22.
The IAC astrophysicist, one of the centers who study these phenomena-has pointed out that as the Sun rotates, these spots are approaching the center of the disc and successive eruptions might occur “would be in line of sight Earth and closer to that affect us. “
Since we see the explosions on the Sun,” have two or three days what it takes for the particle to travel to Earth at the incredible speed of thousands of kilometers per second. “
” So we can not predict if the situation is to worry or not “Socas-Navarro notes, adding that this issue must maintain a delicate balance between scaremongering and warn of the real threat to our technology against which there must be prepared.
In July 2012 there was an eruption believed was very similar but was not directed toward Earth, “so this time we escaped,” according Socas-Navarro, who points out that a recent study estimated that gives a “Carrington event “every hundred years.
No comments:
Post a Comment