There's a fun legend in the North sky. More than 30 degrees north latitude is the story of a five-dimensional constellation that floats over the year, "Kepesus".
Kepesus is the king of the ancient Ethiopia (Aethiopia) in Greek mythology. Because of my vanity Cassiopeia I've been through a lot of trouble. Cassiopeia, whose daughter boasted her daughter, said: "The beauty of my daughter Andromeda is better than the sum of 50 daughter aquatic nymphs", and the redeemed anger of the Poseidon god of the sea. When Poseidon sent the monstrous whales to bring Ethiopia to the place of extermination, Kepesus had to sacrifice his daughter. Luckily, Andromeda, which has almost become monstrous food, rescues Medusa and is saved by the hero Perseus and becomes his wife.
But Poseidon's anger does not stop here, and eventually Cassiopeia hangs down to become a constellation and continues around the North Course. Today, Cassiopeia, his husband Kepesus, daughter Andromeda, son of Perseus, and monsters of whales shine like a constellation in the northern sky.
Heavenly cradle of Kepesus … A "heavy star" could be the mystery of the evolution of galaxies
But it was not just a legend that preserved the city of kephaus. On March 13, the Korean Astronomical and Space Institute (KAIST) announced that it had developed a newly discovered cradle of star formation hidden in the Kepes area as a multifunctional infrared image system (MIRIS). This was the first finding that 66 young stars (old), younger than 10 million years old, corresponding to the younger age of the universe, live in the Keepeus area.
Finding the place where the star is born is itself a mystery, but what does science mean? "This discovery helps explain the process of the evolution of the galaxy," explains Kim Il-jung, senior researcher of the Astronomical Astronomical Observatory Astronomy Group. In particular, the stars that we find are important because the Massive Star, which is huge, is more than 15 times the mass of the sun.
These heavy stars are born and die with this mass and have a major impact on the galaxy as a whole. The most representative is the supernova explosion. Heavy stars decorate the end with the energy that the sun has released for 10 billion years at the same time. It's a supernova. The nucleus of the star is formed and becomes a very small neutron star or black hole. Heavy stars return to oxygen, silicon and iron, which have been collected throughout this life in this process. Kim Il-jung, a researcher, said: "A heavy star through this process has a major impact on the galaxy, so watching these stars is a good idea to see how our galaxy has changed chemically and morphologically."
Our eyes are MIRIS from the sky above 600 km above the earth … The world's first map in the galaxy
The MIRIS telescope, launched in November November in Science and Technology Satellite no. 3, played an important role in discovering the secret of Kepesus. Isaac Newton's telescope, who watched the galaxies on the ground, looked into the invisible area. Using this technique, he succeeded in creating a precise map of our galaxy using the "Paschen Alpha", the world's first hydrogen spectrum that emitted stars from the observation of a heavy star in Kepesus.
Dr. Jung Woong-seop, who participated in the study, said: "Newtonian telescopes used H-alpha, which is relatively short wavelength between hydrogen spectra, but due to" interstellar extinction "in which wavelengths are absorbed or dispersed by but the MIRIS could get a more accurate image by observing the longer wavelength "Paschen Alpha" in space and not on the ground. The younger stars were formed in large, dense clouds called "ionospheric zones "which use hydrogen spectrum from these observations.
MIRIS is known to be able to observe the entire galaxy because it can observe a wider area than NASA's Hubble Space Telescope, which observes space at similar altitudes. Researchers are planning to find more ionizing hydrogen fields in the future, which will be extended to all the same. In the meantime, the results of the study were published in the Astrophysical Journal Supplement Series, an international body for astronomy.
Huh Jung Won reporter [email protected]