2023年9月26日 · In a new study uploaded Sept. 14 to the preprint server arXiv and accepted for publication in the journal Nature Astronomy, researchers discovered the new eerily circular Einstein ring, named...

2023年10月19日 · It consists of a compact early-type galaxy (JWST-ER1g) and a complete Einstein ring (JWST-ER1r) with two conspicuous red concentrations. The lensed galaxy probably has a red centre and a blue...

2025年2月24日 · JWST has made several surprising discoveries, underscored by the `too early' appearance of well-formed galaxies and supermassive black holes. It recently also uncovered a compact galaxy (JWST-ER1g) associated with a complete Einstein ring (JWST-ER1r) at photometric redshift zl = 1.94+0.13−0.17, produced by a lensed galaxy at zs = 2.98+0.42− ...

2023年9月26日 · Astronomers have reported the discovery of a new galaxy using the James Webb Space Telescope (JWST) as part of the JWST COSMOS-Web survey. The newfound object, designated JWST-ER1 is a...

2024年4月20日 · JWST-ER1有两部分：JWST-ER1g，在前景中作为透镜的致密星系；以及JWST-ER1r，来自更遥远星系的光，形成了这个明亮的环。 JWST-ER1g距离地球约170亿光年，而JWST-ER1r则再远40亿光年。

2024年2月24日 · In this work, we show that a cold dark matter halo, influenced by gas-driven adiabatic contraction, can account for the observed lens mass. We interpret the measurement of JWST-ER1 in the self-interacting dark matter scenario and show that the cross section per particle mass σ/m ≈ 0.1 cm2/g is generally favored.

2024年4月15日 · The James Webb Space Telescope discovered an ancient galaxy, JWST-ER1g, which exhibits a phenomenon called strong gravitational lensing, forming an Einstein ring. This galaxy, rich in dark matter, provides new insights into dark matter’s properties and density.

2023年9月27日 · 该论文的作者提出了对JWST-ER1的进一步观测，以调查附近的星系或视线沿线的结构是否有助于其质量，并检查JWST-ER1是否是星团前身的中心星系。

2024年4月16日 · At over 17 billion light-years from Earth, JWST-ER1g is the farthest-ever example of a perfect " Einstein ring " — an unbroken circle of light around the galaxy, a result of light rays from a...

2024年4月11日 · In this work, we show that a cold dark matter halo, influenced by gas-driven adiabatic contraction, can account for the observed lens mass. We interpret the measurement of JWST-ER1 in the self-interacting dark matter scenario and show that the cross section per particle mass σ / m ≈ 0.1 cm 2 g −1 is generally favored.