詹姆斯韦伯望远镜去年发现红移为14的星系(超级无敌早期)

应该是在宇宙再电离期行程的恒星
红移分别是Z13 和Z14, 都属于是 莱曼断裂类型的星系

JADES-GS-z13-0

JADES-GS-z13-0 是2022年发现的. 估算在宇宙大爆炸后330 million years 就形成了,相当的早,星系应该大部分的恒星应该没有金属元素的,是不是第三类星族还不好说,但是应该不是类星体,也不像是早起黑洞。

Before and during the era of reionization, the immense amounts of neutral hydrogen fog surrounding galaxies blocked any energetic ultraviolet light they emitted, much like the filtering effect of colored glass. Until enough stars had formed and were able to ionize the hydrogen gas, no such light — including Lyman-alpha emission — could escape from these fledgling galaxies to reach Earth. The confirmation of Lyman-alpha radiation from this galaxy, therefore, has great implications for our understanding of the early universe.

JADES-GS-z13-1 的 詹姆斯韦伯高清图 :backhand_index_pointing_left:

JADES-GS-z14-0

2024年,JW望远镜又发现了更远的 JADES-GS-z14-0 , 应该是迄今最有的可观测星系了。红移是14.32, 啥意思?大约是 13.5 billion years ago, approximately 300 million years after the Big Bang, or about 2% of its current age.

“The data reveal other important aspects of this astonishing galaxy. We see that the color of the galaxy is not as blue as it could be, indicating that some of the light is reddened by dust, even at these very early times. JADES researcher Jake Helton of Steward Observatory and the University of Arizona also identified that JADES-GS-z14-0 was detected at longer wavelengths with Webb’s MIRI (Mid-Infrared Instrument), a remarkable achievement considering its distance. The MIRI observation covers wavelengths of light that were emitted in the visible-light range, which are redshifted out of reach for Webb’s near-infrared instruments. Jake’s analysis indicates that the brightness of the source implied by the MIRI observation is above what would be extrapolated from the measurements by the other Webb instruments, indicating the presence of strong ionized gas emission in the galaxy in the form of bright emission lines from hydrogen and oxygen. The presence of oxygen so early in the life of this galaxy is a surprise and suggests that multiple generations of very massive stars had already lived their lives before we observed the galaxy.

在当时这么早期的宇宙,光都被尘埃挡着,这次竟然在长波段观测到,可能要颠覆早期宇宙模型

关于JADES-GS-z14-0的早期JW发现报告

JADES-GS-z14-0 的 詹姆斯韦伯高清图

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:doge:這這這…頂哥又是甄嬛傳,又是囤雞蛋。又鐘慢效應又Wanna fist的。話題真是無所不包啊。

刚来,有什么赚钱的路子么

所以你知道,其他也就罢了。当我看到泥潭的那个帖子:backhand_index_pointing_down:

我都快气炸了。。

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