US EditionAstronomers Find 'Missing Link' Galaxies From Early Universe
UMass Amherst-led team identified about 400 dusty galaxies formed nearly 13 billion years ago, linking bright and quiescent galaxies, challenging current cosmological models.
- On February 17, a team of 48 astronomers from 14 countries led by the University of Massachusetts Amherst reported discovering dusty, star-forming galaxies at ultradistant regions of the observable universe formed almost 13 billion years ago.
- Dust in these galaxies prevented earlier detection, as it absorbs UV and visible light, but the Atacama Large Millimeter/submillimeter Array and NASA's James Webb Space Telescope recently revealed about 400 bright and 70 faint dusty star-forming galaxies.
- ALMA first flagged about 400 bright dusty sources, NASA's JWST pinpointed approximately 70 faint candidates, and researchers stacked ALMA data to confirm faint signals.
- The findings challenge current cosmological and galaxy-formation models and appear to bridge ultrabright early star-forming galaxies and early massive 'quiescent' galaxies.
- Researchers added that the dusty galaxy population offers snapshots of their life cycle, with Zavala describing the newly discovered ones as 'young adults.
13 Articles
13 Articles
Eurek Alert
UMass AmherstAn international team of astronomers led by UMass Amherst may have just found one of the missing links in galaxy evolution
A team of 48 astronomers from 14 countries, led by the University of Massachusetts Amherst, has discovered a population of dusty, star-forming galaxies at the far edges of the universe that formed only a billion years after the Big Bang, believed to have occurred 13.7 billion years ago.
Astronomers may have just found one of the missing links in galaxy evolution
A team of 48 astronomers from 14 countries, led by the University of Massachusetts Amherst, has discovered a population of dusty, star-forming galaxies at the far edges of the universe that formed only a billion years after the Big Bang, believed to have occurred 13.7 billion years ago. The galaxies may represent a snapshot in the galactic life cycle, linking recently discovered ultradistant bright galaxies formed 13.3 billion years ago with ear…
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