HomeSpace NewsUltraluminous 'hot DOG' galaxy fed by surrounding smaller galaxies

Ultraluminous ‘hot DOG’ galaxy fed by surrounding smaller galaxies

Astronomers have discovered a swarm of galaxies orbiting a distant, ultraluminous galaxy that is forming stars at an intense rate, showing that early galaxies grew in dense environments.

Interactions with these satellite galaxies could be feeding the central galaxy — called W0410-0913 — with gas and stars, thus helping it grow to 10 times the size of the Milky Way. However, these galaxies aren’t causing as much chaos in W0410-0913 as scientists previously thought, the researchers found.

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