All articles tagged with #galaxy merger
Astronomers have discovered a rare cosmic event involving three galaxies in the process of merging, each hosting an actively feeding supermassive black hole emitting radio jets, providing new insights into galaxy and black hole growth.
Astronomers have confirmed the first known system where three galaxies, each hosting active supermassive black holes, are merging, providing new insights into galaxy and black hole evolution through high-resolution radio imaging. The system, located 1.2 billion light-years away, shows all three black holes actively feeding and launching jets, a rare and significant discovery that advances our understanding of cosmic growth processes.
The James Webb Space Telescope captured a detailed image of the merging spiral galaxies NGC 2207 and IC 2163, revealing an intricate web of cosmic chaos, complemented by Chandra's X-ray data highlighting high-energy regions, providing insights into galaxy interactions.
Astronomers using the Webb space telescope have observed the first known runaway supermassive black hole, which is traveling at 2.2 million mph and leaving a trail of gas that is forming new stars over 200,000 light-years long, likely ejected from its galaxy due to a galaxy merger or binary black hole interaction.
Astronomers using JWST have confirmed the existence of RBH-1, a supermassive black hole at least 10 million times the Sun's mass, ejected from its galaxy at 954 km/s likely due to a merger and gravitational recoil, providing empirical evidence for long-predicted black hole ejection mechanisms.
Astronomers using JWST and Hubble have discovered an exceptionally rare system of at least five galaxies merging just 800 million years after the Big Bang, providing new insights into galaxy formation and evolution in the early universe.
Astronomers captured the first optical evidence of a stellar bridge being torn between two massive galaxies in the Abell 3667 galaxy cluster, revealing a violent cosmic merger and providing insights into dark matter distribution, with future observations expected from the Vera C. Rubin Observatory.
Astronomers using the James Webb Space Telescope observed the formation of a supermassive black hole between two merging galaxies, supporting the hypothesis that such black holes can form directly from collapsing gas clouds during galaxy collisions, providing new insights into their origins.
Scientists observed the formation of a supermassive black hole in a galaxy merger 8.3 billion years ago, supporting the hypothesis that such black holes can form directly from collapsing gas clouds, providing new insights into their origins.
Astronomers have discovered a unique galaxy merger called the Cosmic Owl, consisting of two nearly identical collisional ring galaxies with active nuclei and starburst activity, providing insights into galaxy evolution and black hole growth in the early universe.
Astronomers observed a rare tidal disruption event (TDE) called AT 2022wtn, where a supermassive black hole in a merging galaxy tore apart a star, producing unusual light and spectral features, providing insights into black hole-star interactions during galaxy mergers.
Astronomers using the MeerKAT telescope have discovered a new odd radio circle (ORC J0219–0505) associated with the elliptical galaxy WISEA J021912.43–050501.8. This ORC, part of the MIGHTEE survey, is a faint, edge-brightened ring of radio emission, potentially resulting from a galaxy merger. The discovery suggests a fainter population of ORCs may exist, prompting further investigation into their origins and characteristics.
Astronomers have observed two supermassive black holes sharing a gas cloud a billion light-years away, using NASA's Swift Observatory and the Zwicky Transient Facility. This rare event, located in the galaxy 2MASX J21240027+3409114, reveals how black holes interact and consume gas, creating periodic light flares. The discovery enhances understanding of black hole dynamics and accretion, with the black holes set to merge in 70,000 years, releasing gravitational waves. The findings highlight the role of galaxy mergers in fueling black hole activity.
The Euclid space telescope has discovered 1.5 trillion orphan stars in the Perseus galaxy cluster, emitting faint intracluster light. These stars, originating from disrupted smaller galaxies, are spread up to 2 million light-years from the cluster's center. The findings suggest a recent merger in the cluster, causing gravitational disturbances. This discovery, part of Euclid's early observations, enhances understanding of galaxy evolution and dark matter mapping.
The James Webb Space Telescope (JWST) has detected the most distant black hole merger yet, occurring just 740 million years after the Big Bang. This discovery of two supermassive black holes merging in the early Universe provides crucial insights into how these massive entities formed and grew so quickly. The findings suggest that mergers played a significant role in the rapid growth of black holes, supporting the theory that both initial large black hole seeds and subsequent mergers contributed to their early development.