File:Inseparable galactic twins.jpg

檔案
檔案歷史
檔案用途
詮釋資料

該作品並非來自求聞百科，而是來自「中文維基百科」網站。（作品來源）
免責聲明：求聞百科不為該作品本身、該作品的來源或該作品的說明提供任何保證、擔保或承擔任何責任。

歡迎您為求聞百科貢獻多媒體檔案！
您可以點此上載檔案以替代本檔案，也可以將外部檔案遷移至求聞百科。

檔案歷史

點選日期/時間以檢視該時間的檔案版本。

	日期/時間	縮⁠圖	尺寸	用戶	備⁠註
目前	2013年6月29日 (六) 20:00		2,797 × 2,797（3.64 MB）	zhwiki>Jmencisom	User created page with UploadWizard

檔案用途

下列頁面有用到此檔案：

潮汐力

詮釋資料

此檔案中包含其他資訊，這些資訊可能是由數位相機或掃描器在建立或數位化過程中所新增的。若檔案自原始狀態已被修改，一些詳細資料可能無法完整反映出已修改的檔案。

製作/提供者	ESA/Hubble & NASAAcknowledgement: Judy Schmidt
來源	ESA/Hubble
簡稱	Inseparable galactic twins
影像標題	Looking towards the constellation of Triangulum (The Triangle), in the northern sky, lies the galaxy pair MRK 1034. The two very similar galaxies, named PGC 9074 and PGC 9071, are close enough to one another to be bound together by gravity, although no gravitational disturbance can yet be seen in the image. These objects are probably only just beginning to interact gravitationally. Both are spiral galaxies, and are presented to our eyes face-on, so we are able to appreciate their distinctive shapes. On the left of the image, spiral galaxy PGC 9074 shows a bright bulge and two spiral arms tightly wound around the nucleus, features which have led scientists to classify it as a type Sa galaxy. Close by, PGC 9071— a type Sb galaxy — although very similar and almost the same size as its neighbour, has a fainter bulge and a slightly different structure to its arms: their coils are further apart. The spiral arms of both objects clearly show dark patches of dust obscuring the light of the stars lying behind, mixed with bright blue clusters of hot, recently-formed stars. Older, cooler stars can be found in the glowing, compact yellowish bulge towards the centre of the galaxy. The whole structure of each galaxy is surrounded by a much fainter round halo of old stars, some residing in globular clusters. Gradually, these two neighbours will attract each other, the process of star formation will be increased and tidal forces will throw out long tails of stars and gas. Eventually, after maybe hundreds of millions of years, the structures of the interacting galaxies will merge together into a new, larger galaxy. The images combined to create this picture were captured by Hubble's Advanced Camera for Surveys (ACS). A version of this image was submitted to the Hubble’s Hidden Treasures image processing competition by Judy Schmidt.
使用條款	Creative Commons Attribution 3.0 Unported license
資料產生的日期時間	2013年6月24日 (一) 10:00
關鍵字	MRK 1034
聯絡資訊	http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei M√ºnchen, , D-85748 Germany