среда, 18 декабря 2019 г.

ESO Telescope Images Stunning Central Region of Milky Way, Finds Ancient Star Burst













ESO - European Southern Observatory logo.

17 December 2019

HAWK-I view of the Milky Way’s central region

ESO’s Very Large Telescope (VLT) has observed the central part of the Milky Way with spectacular resolution and uncovered new details about the history of star birth in our galaxy. Thanks to the new observations, astronomers have found evidence for a dramatic event in the life of the Milky Way: a burst of star formation so intense that it resulted in over a hundred thousand supernova explosions.

Details of the HAWK-I view of the Milky Way’s central region

"Our unprecedented survey of a large part of the Galactic centre has given us detailed insights into the formation process of stars in this region of the Milky Way," says Rainer Schödel from the Institute of Astrophysics of Andalusia in Granada, Spain, who led the observations. "Contrary to what had been accepted up to now, we found that the formation of stars has not been continuous,” adds Francisco Nogueras-Lara, who led two new studies of the Milky Way central region while at the same institute in Granada.

Location of the Galactic centre in the night sky

In the study, published today in Nature Astronomy, the team found that about 80% of the stars in the Milky Way central region formed in the earliest years of our galaxy, between eight and 13.5 billion years ago. This initial period of star formation was followed by about six billion years during which very few stars were born. This was brought to an end by an intense burst of star formation around one billion years ago when, over a period of less than 100 million years, stars with a combined mass possibly as high as a few tens of million Suns formed in this central region.

Комментариев нет:

Featured

UFO sighting in Odessa UA НЛО шар плазмы UFO sighting in Odessa UA, white orb An unusual-looking object appeared suddenly in the sky at...

Popular