2024-01-23 19:45:44
This new image from NASA’s Hubble Space Telescope shows a tangled group of interacting galaxies called LEDA 60847. – NASA/ESA
MADRID, 23 Ene. (EUROPA PRESS) –
This new image from the NASA/ESA Hubble Space Telescope shows a group of interacting galaxies known as LEDA 60847, classified as an active galactic nucleus, the AGN.
An AGN has a supermassive black hole in the central region of the galaxy that is accreting material. AGN emits radiation across the entire electromagnetic spectrum and shines very brightly. By studying the powerful AGN that are relatively close, Astronomers can better understand how supermassive black holes grow and affect galaxies.
Galaxy mergers are relatively common events. Most larger galaxies are the result of the merger of smaller galaxies. The Milky Way itself contains traces of other galaxies, indicating that it is the product of past mergers. Astronomers believe that between 5% and 25% of all galaxies are currently merging.
This image of LEDA 60847 combines ultraviolet, visible, and near-infrared data from Hubble. The ability to see through all those wavelengths is one of the things that makes Hubble unique, according to a NASA statement.
Different types of light along the electromagnetic spectrum tell astronomers different things about our universe. Ultraviolet light tracks the brightness of stellar nurseries and is used to identify the hottest stars. Visible light shows us stars and moderate temperature material, and also what the view would look like before our own eyes. Last but not least, near-infrared light can penetrate cold dust, allowing us to study hot gases and dust and relatively cool stars.
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