(Imaging and spectroscopic data of CEERS-z7382. a, False-color JWST/NIRCam red-green-blue image centered on the example galaxy (blue: F150W, 1.5 μm; green: F277W, 2.8 μm; red: F444W, 4.4 μm). The image scale and corresponding physical size at z = 7.8328 is marked. b, Full NIRSpec prism spectrum covering 0.7 μm to 5.2 μm (cyan) and associated 1σ error spectrum (gray). c, Detail of the spectral region covering the nebular emission lines from the [O III] λλ4960, 5008 doublet and Hβ. The local best-fit line and continuum model is shown by the black curve. Credit: Nature Astronomy (2023). DOI: 10.1038/s41550-023-02078-7) (This plot shows the observed galaxies in an "element-stellar mass diagram": The farther to the right a galaxy is, the more massive it is, and the farther up, the more heavy elements it contains. The gray icons represent galaxies in the present-day universe, while the red show the new observations of early galaxies. These clearly have much less heavy element...
네이버 '고든의 블로그' 구글 분점입니다. 과학, 기술, 역사, IT, 밀리터리, 기타 여러가지 흥미로운 주제에 대한 글을 쓰고 있습니다. 방문하시는 분 모두 환영합니다.