It has been revealed that NASA's Swift satellite has discovered the strongest, hottest and long-lasting sequence of stellar flares ever seen from the nearby red dwarf star.
According to the scientists, initial blast from the recent series of explosions was almost 10,000 times more powerful than the largest solar flare ever recorded.
Stephen Drake, an astrophysicist at NASA's Goddard Space Flight Center in Greenbelt, Maryland, said that earlier scientists used to think that major flaring episodes from the red dwarfs lasted not more than a day. But the recent explosions recorded by the Swift lasted for about a period of two weeks, he said. In addition, Stephen stated that Swift recorded at least seven powerful explosions.
Scientists asserted that the flares at its peak reached to a temperature of 360 million degrees Fahrenheit (200 million Celsius), which is 12 times hotter than the center of the Sun.
The "superflare" came from one of the two stars that were found in a close binary system known as DG Canum Venaticorum, or DG CVn. The stars are located almost 60 light-years away from earth.
Researchers stated that both the stars are dim red dwarfs, whose mass and size are almost one-third of the Sun. These stars orbit each other at about three times earth's average distance from the Sun.
Osten, an astronomer at the Space Telescope Science Institute in Baltimore, said, "This system is poorly studied because it wasn't on our watch list of stars capable of producing large flares. We had no idea DG CVn had this in it".
As per the estimation given by the astronomers, DG CVn might have born almost 30 million years ago, which means it is 0.7% younger than the solar system.
Currently, astronomers are engaged in analyzing the data gathered from the DG CVn flares to better understand the event in particular and young stars in general.
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