A Record-Breaking Flare From Sun's Nearest Stellar Neighbour
Astronomers have detected one of the most violent still aflame ever recorded in the galaxy exploding out of proxima centauri the nearest star system that the sun the massive flare reported in the estra physical journal is the largest ever recorded coming from proxima centauri a small special tie. Game red dwarf star located just four point two five light years away. Proxima centauri has twelve percent the mass and fourteen percent the radius of the sun. It is a surface temperature of thousand seven hundred and seventy seven degrees celsius and is better thousand times less luminous than the sun. it's known to have. At least two orbiting planets one of which proxima b. is similar in size to the earth and orbits within the star's habitable zone. That's the region around a star with temperatures would allow liquid water central for life as we know it to exist on the planet. Surface red dwarfs are the most common type of star in the milky way galaxy making up about three quarters of all the stars in the galaxy. And because they're relatively dim it's easy to find orbiting except planets around them consequently the most common known source of exoplanets. And for this reason proximus story has long been a target for scientists have been defined life beyond the solar system. However there's always been a problem with red dwarf stars and that includes proxima centauri. They produce violent flares spilling out huge amounts of energy and plasma into the surrounding space. Eventually this would erode away any atmosphere around by planet. A would also radiate anything on the planet surface and that includes any hope of finding life on the surface of proxima b. The study's lead author assistant professor mcgregor from the university of colorado. Boulder says red dwarfs flare a lot more than stars like the sun and astronomers are only now beginning to understand the magnitude and character of their flays mcgregor and colleagues observed proxima centauri for forty hours using nine ground and space based telescopes including the square kilometer. Ray pathfinder as gap nassar's hubble space telescope the atacama large millimeter submillimeter array radio telescope alma and nasa transiting exoplanet survey satellite tests. This marked the first time. Astronomers have had this kind of multi wavelength coverage of a stellar flare.