A Star Factory Discovered in the Early Universe
In the Y1 galaxy, there’s a remarkable “star factory” producing stars at an incredibly rapid pace – 100-200 times faster than in the Milky Way.
astronomers have detected an exceptionally active “star factory.” star birth in the remote galaxy Y1 is proceeding 100-200 times faster than in our Milky Way. This discovery could help solve the puzzle of how galaxies grew so quickly in the early Universe.
The galaxy, designated MACS0416_Y1 (frequently enough shortened to Y1), has a redshift of around 8.3. This means we’re observing its light as it appeared over 13 billion years ago.
Inside the “hot” galaxy. Using the Atacama Large Millimeter/submillimeter Array (ALMA) – a 66-antenna radio telescope in the Chilean Andes designed to observe the Universe in millimeter and submillimeter waves – a team led by Tom Bakx (of Chalmers University of Technology,Sweden) measured the temperature of cosmic dust inside the galaxy. This dust is “superheated” compared to similar galaxies.
