Giant, low-surface-brightness galaxies

Forty years ago, astronomers using sensitive new imaging techniques discovered a class of large, faint galaxies they named low-surface-brightness galaxies. Giant low-surface-brightness galaxies (gLSBGs) are a subset whose ...

A barred galaxy's massive molecular inflow

Large amounts of gas are sometimes funneled to a galaxy's nuclear regions, with profound consequences. The gas triggers starburst activity and can also feed the supermassive black hole, converting it into an active galactic ...

eROSITA witnesses the awakening of massive black holes

Using the SRG/eROSITA all-sky survey data, scientists at the Max Planck Institute for Extraterrestrial Physics have found two previously quiescent galaxies that now show quasi-periodic eruptions. The nuclei of these galaxies ...

Black holes like to eat, but have a variety of table manners

All supermassive black holes in the centers of galaxies appear to have periods when they swallow matter from their close surroundings. But that is about as far as the similarities go. That's the conclusion reached by British ...

How star formation is 'quenched' in galaxies

Galaxies die quickly—that is the conclusion of a new study that examines the mechanism that switches galaxies from an active star-forming phase to one of quiescence.

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