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Image: Hubble glimpses bright galaxy group LEDA 60847

Hubble glimpses a bright galaxy group
This new NASA Hubble Space Telescope image shows a tangled group of interacting galaxies called LEDA 60847. Credit: NASA/ESA/A. Barth (University of California - Irvine)/M. Koss (Eureka Scientific Inc.)/A. Robinson (Rochester Institute of Technology)/Processing: Gladys Kober (NASA/Catholic University of America

This new NASA Hubble Space Telescope image shows a group of interacting galaxies known as LEDA 60847.

LEDA 60847 is classified as an , or AGN. An AGN has a in the galaxy's central region that is accreting material. The AGN emits radiation across the entire electromagnetic spectrum and shines extremely brightly. By studying powerful AGNs that are relatively nearby, astronomers can better understand how supermassive black holes grow and affect galaxies.

Galaxy mergers are relatively common occurrences. Most larger galaxies are the result of smaller galaxies merging. The Milky Way itself contains traces of other galaxies, indicating it is the product of past mergers. Astronomers believe somewhere 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 across all those wavelengths is one of the things that makes Hubble unique. Different types of light across the electromagnetic spectrum tell astronomers different things about our universe. Ultraviolet light traces the glow of stellar nurseries and is used to identify the hottest stars. Visible light shows us moderate-temperature stars and material, and also how the view would appear to our own eyes. Last but not least, near-infrared light can penetrate cold dust, allowing us to study warm gas and dust, and relatively cool stars.

Provided by NASA

Citation: Image: Hubble glimpses bright galaxy group LEDA 60847 (2024, January 24) retrieved 20 April 2024 from https://phys.org/news/2024-01-image-hubble-glimpses-bright-galaxy.html
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