Astronomers have discovered a huge hole in the Milky Way that is thought to have formed millions of years ago after a massive stellar explosion and could be the key to The role of supernovae in the birth of stars.
Some time ago, scientists identified a strange fracture in one of the arms of the Milky Way. A new study published in the Astrophysical Journal Letters on September 22 (September 31st) now reveals the discovery of a huge empty region in our galaxy. This bubble-shaped hole is 500 light-years across and is located between the star-forming regions of the constellations Perseus and Taurus or Cow.
Clusters are thought to be Stargazers from gas and dust, known as molecular clouds, have consistently formed from a supernova or the same stellar explosion that ended about 10 billion years ago. "The new discovery may provide more information about the role of supernovae in star formation," said researchers. "On the surface of this giant bubble, there are hundreds of stars or they are forming."
"We have two theories," he added. Either a supernova explodes at the core of the bubble, pushing gas out to form what we now call the Perseus-Taurus Supershell, or a collection of supernovae that have formed over millions of years. Have expanded the hole. "
Simulation How the Bersavsh-Thor superbubble formed from a
Credit: Jasen Chambers/Center for Astrophysics, Harvard & Smithsonian
"For the first time, they were able to draw a three-dimensional map of the molecular clouds of the Bersavsh-Thor superbubble, revealing this huge hole that was obscured in previous two-dimensional maps of the region."
- Blue Star Bridge on the Milky Way
" Catherine Zucker, "another author of the CfA study, said: But never doubt We did not know their depth or thickness. We were also not sure how far these clouds were. "We now know with a small percentage of uncertainty where they are, and this allows us to identify the huge hole."
Developed a data modification software called Glue, which was developed by Alyssa Goodman, another co-author of the study. The team mapped star formation regions to find out how the gas and dust released during stellar explosions place themselves in molecular clouds and form new stars. Scientists' findings show that molecular clouds are moving and Thor are formed as a result of a supernova shock wave and show the powerful effects of such stellar explosions. "This shows that when a star dies, the supernova creates a chain of events that may eventually lead to the birth of new stars," Biali said.
Molecular Clouds of the Constellations Bersavsh-Cow
Credit: Alyssa Goodman/Center for Astrophysics, Harvard & Smithsonian