Physicists solve a puzzle linked to JWST-ER1g, a massive ancient galaxy that formed when the universe was just a quarter of its current age.
Last September, the James Webb Space Telescope, or JWST, discovered JWST-ER1g, a massive ancient galaxy that formed when the universe was just a quarter of its current age. Surprisingly, an Einstein ring is associated with this galaxy. That's because JWST-ER1g acts as a lens and bends light from a distant source, which then appears as a ring -- a phenomenon called strong gravitational lensing, predicted in Einstein's theory of general relativity.
A dark matter halo is the halo of invisible matter that permeates and surrounds a galaxy like JWST-ER1g. Although dark matter has never been detected in laboratories, physicists are confident dark matter, which makes up 85% of the universe's matter, exists. "This strong lensing object is unique because it has a perfect Einstein ring, from which we can obtain valuable information about the total mass within the Einstein radius, a critical step for testing dark matter properties," he said.
Astrophysics Astronomy Solar Flare Galaxies Cosmology Sun NASA
Indonesia Berita Terbaru, Indonesia Berita utama
Similar News:Anda juga dapat membaca berita serupa dengan ini yang kami kumpulkan dari sumber berita lain.
Physicists solve puzzle about ancient galaxy found by Webb telescopeLast September, the James Webb Space Telescope, or JWST, discovered JWST-ER1g, a massive ancient galaxy that formed when the universe was just a quarter of its current age. Surprisingly, an Einstein ring is associated with this galaxy.
Baca lebih lajut »
JWST observations shed more light on the nature of a distant galaxy clusterAstronomers from the Nanjing University in China and elsewhere have performed high-resolution observations of a distant galaxy cluster known as CL J1001+0220 using the James Webb Space Telescope (JWST).
Baca lebih lajut »
In a Distant Solar System, the JWST Sees the End of Planet FormationPlanet formation is ending around a distant young protostar. The planet-forming gas in the star's disk is being dispersed into space.
Baca lebih lajut »
In a distant stellar system, the JWST sees the end of planet formationEvery time a star forms, it represents an explosion of possibilities. Not for the star itself; its fate is governed by its mass. The possibilities it signifies are in the planets that form around it.
Baca lebih lajut »
JWST observations explore molecular outflows of a nearby merging galaxyUsing the James Webb Space Telescope (JWST), an international team of astronomers has observed a nearby merging galaxy known as NGC 3256. Results of the observational campaign, presented March 21 on the pre-print server arXiv, yield essential information about molecular outflows of this galaxy.
Baca lebih lajut »
Decoding Dark Matter: Insights From JWST’s Discovery of an Einstein-Ringed GalaxyScience, Space and Technology News 2024
Baca lebih lajut »