2023年9月26日 · The James Webb Space Telescope has snapped a stunning image of a perfectly formed Einstein ring, which is also the most distant gravitationally lensed object ever detected. ... JWST-ER1, is the ...

2025年2月24日 · View a PDF of the paper titled The lens mass in the Einstein ring JWST-ER1, by Fulvio Melia. View PDF HTML (experimental) Abstract: 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 ...

2023年10月19日 · The ring was found in the James Webb Space Telescope COSMOS-Web survey and is produced by a background galaxy at $${z}_{{{{\rm{phot}}}}}=2.9{8}_{-0.47}^{+0.42}$$ . ... JWST-ER1 joins a large ...

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 $\sigma/m\approx0.1~{\rm cm^2/g}$ is generally favored.

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 massive and ...

2024年4月11日 · Recently, van Dokkum et al. used data from the James Webb Space Telescope COSMOS-Web survey and found a strong-lensing object JWST-ER1 at redshift z ≈ 2.The object consists of a complete Einstein ring with a radius of 6.6 kpc and a compact early-type galaxy (JWST-ER1g) with an effective radius of 1.9 kpc.

2023年9月27日 · jwst-er1的jwst彩色图像。资料来源：范多库姆等人，2023 年。 天文学家报告说，作为jwst cosmos-web调查的一部分，使用詹姆斯韦伯太空望远镜（jwst）发现了一个新星系。新发现的物体，被命名为jwst-er1是一个巨大而紧凑的静止星系。

2023年9月27日 · Researchers have discovered a new Einstein ring, named JWST-ER1, within the COSMOS-Web survey using the JWST. This ring is eerily circular and was found in a map of over 500,000 galaxies observed ...

2023年10月1日 · JWST-ER1由两部分组成:JWST-ER1g，在前景中充当透镜物体的致密星系;以及JWST-ER1r，来自更遥远星系的光形成了这个发光环。JWST-ER1g距离地球约170亿光年，而JWST-ER1r距离地球约40亿光年。根据BigThink.com的数据，到目前为止，探测到的最远的透镜物体距离我们约147亿光年。