Hubble images a complex galactic trio

This luminescent image features multiple galaxies, perhaps most noticeably LEDA 58109, the lone galaxy in the upper right. LEDA 58109 is flanked by two further galactic objects to its lower left—a galaxy with an active ...

Wandering black holes

Every massive galaxy is believed to host a supermassive black hole (SMBH) at its center. Its mass is correlated with the mass of the inner regions of its host (and also with some other properties), probably because the SMBH ...

Radio source J2102+6015 investigated in detail

An international team of astronomers has conducted a detailed study of a high-redshift young radio source designated J2102+6015. Results of the research, presented in a paper published August 4 on arXiv pre-print repository, ...

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 ...

Microlensing measurement of a quasar's accretion disk

An active galactic nucleus (AGN) is a supermassive black hole residing at the core of a galaxy that is accreting material. The accretion occurs in the vicinity of the hot torus around the nucleus, and it can generate rapidly ...

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