Tag

Protocluster

All articles tagged with #protocluster

space29 days ago•6 min saved

Ancient proto-supercluster COSMOS-z3.1-A: a 5,000 Milky Way–mass giant from the early universe

Astronomers using deep imaging and spectroscopy identified COSMOS-z3.1-A as the earliest and most distant protocluster, seen when the Universe was about 2.1 billion years old and containing roughly 5,000 times the Milky Way’s mass. The object is a proto-supercluster that will merge into a giant cluster, with 3D mapping showing dense, clumpy subregions at the intersections of the cosmic web, illustrating bottom-up structure formation. The study, part of the ODIN survey, also highlights COSMOS-z3.1-C as another dense protocluster and anticipates evolving into masses surpassing the Coma Cluster; future surveys like the Vera Rubin Observatory’s LSST will help find more such ancient giants.

via BBC Sky at Night Magazine|

#cosmic-web #dark-matter #early-universe

space3 months ago•97 min saved

JWST Reveals Six-Galaxy Clash Driving a Giant Galaxy's Birth

NASA/ESA/CSA’s James Webb Space Telescope imaging shows a chaotic merger of at least six galaxies (TGSSJ1530+1049) at redshift ~4, about 12 billion years ago, in the early universe. The tightly packed system is expected to fuse into a colossal elliptical at the center of a future galaxy cluster, while a developing supermassive black hole powers radio jets, offering a rare glimpse into how massive galaxies and black holes grow together in the universe’s youth.

via Space|

#galaxy-merger #james-webb-space-telescope #protocluster

space7 months ago•35 min saved

James Webb and Chandra Reveal Likely Most Distant Protocluster, Challenging Cosmology

Astronomers using the James Webb Space Telescope and the Chandra X-ray Observatory have captured the clearest image yet of a galaxy protocluster, JADES‑ID1, located about 12.7 billion light‑years away. The structure hosts at least 66 galaxies with a combined mass of roughly 20 trillion suns, embedded in a huge cloud of hot gas detected in X‑rays. Formed when the universe was about 1 billion years old, this protocluster appears more massive and earlier than current cosmological models predict, sparking questions about how such enormous structures grow in the early universe.

via Yahoo|

#chandra-x-ray-observatory #early-universe #jades-id1

space7 months ago•96 min saved

JWST and Chandra spot massive protocluster that defies early-universe timing

Using JWST's infrared data and Chandra's X-ray observations, astronomers report JADES-ID1, a massive protocluster about 12.7 billion light-years away, containing at least 66 galaxies and a surrounding hot gas cloud; its mass is estimated at ~20 trillion suns and it spans ~1.1 million light-years, existing when the universe was ~1 billion years old, challenging models that such large structures should form later by 2–3 billion years after the Big Bang.

via Live Science|

#chandra #early-universe #jades-id1

space7 months ago•2 min saved

Ancient Protocluster Defies Early-Universe Timing

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.

via Universe Today|

#chandra-x-ray-observatory #early-universe #galaxy-cluster

astronomy8 months ago•45 min saved

Earliest Protocluster Unveiled by JWST Signals Rapid Cosmic Growth

Using the James Webb Space Telescope and NASA’s Chandra X-ray Observatory, scientists observed the most distant protocluster yet seen, JADES-ID1, forming when the universe was about 1 billion years old. Light from this building cluster has travelled 12.7 billion years to reach Earth, revealing multiple galaxies bound by gravity within a surrounding cloud of hot gas and X‑ray emission. The finding—published in Nature—suggests galaxy clusters grew far more quickly in the early universe than current models had predicted, raising new questions about how these massive structures assembled.

via Space|

#astronomy #early-universe #galaxy-clusters

science1 year ago•3 min saved

Evolved Core Discovered in Distant Galaxy Protocluster

Using the James Webb Space Telescope, astronomers studied the distant galaxy protocluster A2744-z7p9OD at redshift 7.88 and found that its core is remarkably evolved, containing massive, dusty galaxies with declining star formation, indicating an advanced stage of development earlier than expected for such an early epoch.

via Phys.org|

#a2744-z7p9od #cosmology #galaxies

astronomy2 years ago•2 min saved

"Astronomers Uncover Massive Protocluster Surrounding Luminous Quasar"

Astronomers have discovered a massive protocluster around a luminous quasar known as J0910–0414, which is one of the most overdense structures known in the early universe. The protocluster, estimated to be three times greater than the nearby Coma cluster, is the most massive one found at a redshift higher than 6.0. This discovery was made possible through observations using the Hyper Suprime-Cam on the Subaru Telescope, the Atacama Large Millimeter/submillimeter Array (ALMA), and other ground-based facilities. The findings suggest that targeting quasar fields with both ALMA and narrow-band observations is an efficient way to identify galaxy overdensities and study the environmental dependence of galaxy evolution.

via Phys.org|

#alma #astronomy #galaxy-clusters

science-and-astronomy3 years ago•4 min saved

JWST unveils early universe's secrets through distant observations.

The James Webb Space Telescope has captured images of seven galaxies that make up the youngest protocluster ever seen by astronomers, just 650 million years after the Big Bang. The protocluster will eventually grow in mass and size by incorporating galaxies, forming a galactic cluster that resembles the Coma Cluster. The observation of these galaxies could help scientists better understand how the cosmos has evolved over its 13.8-billion-year existence. The team was able to determine that the galaxies are moving at over 2 million mph through a halo of dark matter, and the key to doing this was precise measurements captured by Webb's Near-Infrared Spectrograph.

via Space.com|

#early-universe #galactic-cluster #infrared