All articles tagged with #galaxy cluster
Astronomers using the James Webb Space Telescope and the Chandra X-ray Observatory identified JADES-ID1 as a protocluster with at least 66 galaxies and enveloped in million-degree gas, already amassing about 20 trillion solar masses just one billion years after the Big Bang—far earlier than models predict and prompting questions about how the universe’s largest structures form.
Astronomers using LOFAR and the upgraded GMRT detected a once-dormant supermassive black hole at the heart of galaxy J1007+3540 reigniting, driving a colossal jet and an aging outer cocoon spanning about 1 million light-years. The radio structures reveal episodic AGN activity influenced by the hot gas in the surrounding galaxy cluster, illustrating how galactic nuclei turn on and off over cosmic timescales (publication: Monthly Notices of the Royal Astronomical Society).
Scientists discovered a galaxy cluster called SPT2349-56, just 1.4 billion years after the Big Bang, with gas temperatures far exceeding predictions, likely due to energy from supermassive black holes, challenging current models of galaxy cluster evolution.
NASA's Chandra X-ray Observatory captured an image of the 'Champagne Cluster,' a merging galaxy cluster named for its bubble-like appearance and discovery date, revealing insights into dark matter and galaxy collision processes.
Astronomers captured the deepest-ever image of the galaxy cluster Abell 3667, revealing evidence of past galactic interactions and mergers, and highlighting our cosmic insignificance. The observation, supported by long-term data stacking and future telescopic advancements like the Rubin Telescope, promises to deepen our understanding of galaxy formation and evolution.
NASA's Hubble Space Telescope captured an image of the spiral galaxy NGC 3285B in the Hydra constellation, highlighting a Type Ia supernova from 2023 that is aiding astronomers in refining measurements of cosmic distances and understanding the universe's expansion.
Astronomers using radio telescopes discovered a peculiar mini-halo in the galaxy cluster Abell 3558, extending about 1.8 million light years and likely powered by turbulence from gas sloshing, providing insights into galaxy cluster dynamics and evolution.
Astronomers detected ancient radio signals from a distant galaxy cluster, indicating the presence of high-energy particles and magnetic fields that could shed light on the early universe's formation, with potential origins linked to black holes or cosmic particle collisions.
Astronomers captured the deepest, highest-resolution image of galaxy cluster Abell 2255, revealing mysterious, filament-rich radio tendrils over 200,000 light-years long, which are likely dragged out by turbulent motions within the cluster, providing new insights into the behavior of supermassive black hole jets and intergalactic gas.
NASA's Chandra telescope discovered a massive galaxy cluster, PLCK G287.0+32.9, wrapped in a 20 million light-year-wide energized particle cocoon, likely energized by shockwaves and turbulence, revealing new insights into cosmic energy processes and magnetic fields.
Astronomers discovered the largest-ever cloud of energetic particles around a galaxy cluster, stretching nearly 20 million light-years, driven by turbulence and shockwaves rather than galaxies, challenging existing models and revealing new insights into cosmic magnetic fields and energy transfer in the universe.
Astronomers have discovered the largest known cloud of energetic particles around a galaxy cluster, spanning nearly 20 million light-years, energized by shockwaves and turbulence rather than nearby galaxies, challenging existing theories and offering new insights into cosmic magnetic fields.
The James Webb Space Telescope captured a deep field image of galaxy cluster Abell S1063, revealing faint, distant galaxies and warped arcs caused by gravitational lensing, allowing scientists to study the Universe's earliest galaxies and probe the period known as Cosmic Dawn.
Astronomers from India and South Africa have detected sloshing cold fronts in the intracluster medium of the massive galaxy cluster Abell 2566 using data from NASA's Chandra X-ray observatory. The findings, published on arXiv, reveal unusual spiral-shaped gas sloshing and cold fronts, likely caused by a minor merger and displacement of the cluster's gravitational potential well.
Astronomers have detected a new radio halo in the massive galaxy cluster ACT-CL J0329.2-2330, using L-band and UHF-band observations with the MeerKAT radio telescope. This discovery, reported in a research paper, marks the highest redshift halo detected so far and suggests rapid magnetic field amplification in galaxy clusters at high redshifts. The radio halo in ACT-CL J0329 exhibits a smooth, regular morphology and has a flux density of 3.44 and 6.11 mJy at L and UHF-band, respectively, indicating its luminosity comparable to halos found in nearby massive galaxy clusters.