Tag

Cosmos Web

All articles tagged with #cosmos web

James Webb uncovers the universe's largest, most detailed map of the cosmic web
astronomy8 days 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.

JWST Maps the Cosmic Web in Unprecedented Detail
space12 days 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.

JWST Maps the Cosmic Web in Unprecedented Detail Across Cosmic Time
science14 days 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.

"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.

"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.