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Cosmos Web

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James Webb maps the cosmic web in unprecedented detail, tracing galaxy growth across 13 billion years
science4 days ago

James Webb maps the cosmic web in unprecedented detail, tracing galaxy growth across 13 billion years

Using JWST’s COSMOS-Web survey, astronomers have produced the most detailed map of the cosmic web to date, showing how galaxies formed and moved within dense filaments over roughly 13 billion years. The 255-hour survey catalogs about 164,000 galaxies and reveals that dense regions boosted early galaxy growth, while in the later universe environmental effects and massive dark-matter halos quenched star formation, clarifying how the universe’s large‑scale skeleton shaped galaxy evolution.

via Yahoo|
#cosmic-web#cosmos-web#galaxy-formation
JWST maps the cosmos with its largest, most detailed 3D survey
astronomy5 days ago

JWST maps the cosmos with its largest, most detailed 3D survey

Using the COSMOS-Web program, the James Webb Space Telescope has produced the largest-ever 3D map of the universe, charting about 164,000 galaxies over a 255-hour survey to reveal the cosmic web’s skeleton from the present back to when the universe was under 1 billion years old. The map shows dense regions fostering early galaxy growth and, later, environmental quenching in massive galaxies—likely driven by massive dark matter halos and feedback from supermassive black holes—providing new insight into how the large-scale structure of the cosmos evolved. The COSMOS-Web galaxy catalog is publicly available for researchers.

via Live Science|
#astronomy#cosmic-web#cosmos-web
Cosmic Web Unveiled: JWST Maps the Early Universe in Unprecedented Detail
science1 month ago

Cosmic Web Unveiled: JWST Maps the Early Universe in Unprecedented Detail

Researchers using JWST data from the COSMOS-Web program produced the most detailed map of the cosmic web to date, tracing galaxies and filamentary structures back to about 1 billion years after the Big Bang, revealing finer details than previous Hubble maps and releasing the 164,000-galaxy catalog and an interactive cosmic-evolution visualization to the public.

via Universe Today|
#cosmic-web#cosmos-web#dark-matter
James Webb uncovers the universe's largest, most detailed map of the cosmic web
astronomy1 month ago

James Webb uncovers the universe's largest, most detailed map of the cosmic web

Using JWST’s COSMOS-Web survey, astronomers mapped about 164,000 galaxies over a 255‑hour program to produce the largest, most detailed view of the cosmic web. The map shows how dense regions foster early galaxy growth and eventually quench star formation, revealing the large-scale structure of the universe up to redshift z~7 and refining our understanding of cosmic evolution since the universe’s infancy.

via Live Science|
#astronomy#cosmic-web#cosmos-web
JWST Maps the Cosmic Web in Unprecedented Detail
space1 month ago

JWST Maps the Cosmic Web in Unprecedented Detail

Using NASA’s James Webb Space Telescope data from the COSMOS-Web survey—the telescope’s largest General Observer program—astronomers have created the most detailed map of the cosmic web to date, tracing the network of galaxies across 13.7 billion years of cosmic history back to when the universe was about 1 billion years old. The improvement comes from JWST’s deep infrared observations and precise galaxy distances, revealing filamentary structures that earlier maps smoothed over. The team is releasing the large-scale structure maps, a catalog of about 164,000 galaxies, and a video publicly for broader study of galaxy formation and cosmic evolution.

via futurity.org|
#astronomy#cosmic-web#cosmos-web
JWST Maps the Cosmic Web in Unprecedented Detail Across Cosmic Time
science1 month ago

JWST Maps the Cosmic Web in Unprecedented Detail Across Cosmic Time

Using the James Webb Space Telescope’s COSMOS-Web survey, researchers produced the sharpest map yet of the universe’s cosmic web by charting about 164,000 galaxies, tracing large-scale structures back to when the universe was roughly 1 billion years old. The map reveals dense filaments and voids and will help study how galaxies evolve within this cosmic skeleton; the data are publicly released for wider use.

via ScienceDaily|
#cosmic-web#cosmos-web#galaxies
"James Webb Space Telescope Uncovers Elusive Monster Galaxy Hidden in Dust"
astronomy2 years ago

"James Webb Space Telescope Uncovers Elusive Monster Galaxy Hidden in Dust"

The James Webb Space Telescope has rediscovered a mysterious dusty galaxy, known as AzTECC71, that had vanished from view after its initial detection by ground telescopes and the Hubble Space Telescope. These "Hubble dark galaxies" are difficult to observe at normal optical wavelengths due to the absorption of light by surrounding dust, making infrared detection crucial. The recent detection suggests that these dusty star-forming galaxies may be more common than previously thought and could provide insights into the early universe. The COSMOS-Web project, in which Webb is participating, aims to map one million galaxies and study the optical and infrared properties of heavily dust-obscured galaxies.

via The Debrief|
#astronomy#cosmos-web#dusty-star-forming-galaxy
"James Webb Space Telescope captures stunning image of resurrected ghost galaxy"
astronomy2 years ago

"James Webb Space Telescope captures stunning image of resurrected ghost galaxy"

The James Webb Space Telescope (JWST) has captured an image of a previously elusive dusty star-forming galaxy, AzTECC71, which had disappeared from Hubble Space Telescope images. This discovery suggests that such galaxies may be more common in the early universe than previously thought. The COSMOS-Web collaboration, led by researchers at the University of Texas at Austin, aims to map up to 1 million galaxies using JWST to study the earliest structures of the universe. The JWST's sensitivity to infrared light allows it to penetrate the dust veils surrounding these galaxies, providing new insights into their properties and evolution.

via Phys.org|
#astronomy#cosmos-web#dusty-galaxy