Webb uncovers possible hidden black hole in nearby spiral galaxy M83 : 無料・フリー素材/写真
Webb uncovers possible hidden black hole in nearby spiral galaxy M83 / James Webb Space Telescope
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | How do you find something you can’t see? ⚫Webb is giving astronomers a new look at spiral galaxy Messier 83 (M83), revealing evidence that suggests the presence of a supermassive black hole! Massive spiral galaxies like this one often host an active galactic nucleus (AGN), or a growing black hole, but astronomers have struggled for decades to confirm one in M83. Webb’s Mid-infrared Instrument (MIRI) revealed, for the first time, highly ionized neon gas that could be a telltale signature of its presence. Alternative scenarios like extreme shock waves in the interstellar medium are still being investigated, but an AGN is the most likely explanation!MIRI also captured this extraordinarily detailed image, with its creeping tendrils of gas, dust and stars. The stars throughout look like bright blue speckles. Star-forming regions woven through the spiral arms are shown in yellow, and the darker orange regions show how organic molecules of cosmic carbon (polycyclic aromatic hydrocarbons - PAHs) are distributed through the galaxy. PAHs are an important source of carbon for young, primordial planets, and influence how quickly they can form. Very bright PAH emission comes from places where new stars and exoplanets are forming.Read more: esawebb.org/news/weic2509/Image Credits: ESA/Webb, NASA & CSA, A. Adamo (Stockholm University) and the FEAST JWST teamImage description: A close-up view of a barred spiral galaxy. Two spiral arms reach horizontally away from the core in the center, merging into a broad network of gas and dust which fills the image. This material glows brightest orange along the path of the arms, and is darker red across the rest of the galaxy. Through many gaps in the dust, countless tiny stars can be seen, most densely around the core. |
| 撮影日 | 2025-04-17 10:39:51 |
| 撮影者 | James Webb Space Telescope , Greenbelt, MD, USA |
| タグ | |
| 撮影地 |