NASA’s Wise Spacecraft Discovers The Most Luminous Galaxy

NASA’s Wide Field Infrared Survey Explorer or WISE has discovered the most luminous galaxy noticed till to-date in the universe. The galaxy is noted to be emanating as much light as can be illuminated by 300 trillion suns. The galaxy is named as WISE-J224607-052635.0 may have giant black hole deep inside it. The actually emanated light energy of the galaxy is blocked by the layers of dust around the galaxy and the dust layers alternatively heated up to illuminate infrared lights. This new type of discovered galaxies are named as extremely luminous infrared galaxies or ELIRGs.

The light from the galaxy hosting the black hole has travelled 12.5 billion years to reach us. The black hole inside this galaxy is expected to be billions times the mass of the Sun. The astronomers have different opinions regarding the creation of such mammoth black holes inside ELIRGs.

Three types of opinions are available in this regard. First, they may have been born bigger, i.e. to say the seeds are much bigger than the scientists had thought previously. Second opinion is that the black hole is crossing the Eddington limits and thus growing mammoth. The third opinion says that the black hole consumes more than actually possible in a normal way. This happens when the black hole spins slower than then normal speed. The slower black holes consume more matters and grow in size.

WISE has been engaged in finding exceptional galaxies like this new discovery. The infrared images captured by it have revealed various spectacular objects and events around the universe. According to studies these rare cosmic events may not be visible if WISE had not shown them. Studies have revealed 20 such ELIGRs have been detected so far. Some of these galaxies have very poor luminosity due to obstruction of thickly coated dust particles around them preventing infrared light to come out properly.

No Comments

    Leave a reply