ファイル:One ring to rule them all.jpg

ページのコンテンツが他言語でサポートされていません。

元のファイル(974 × 854 ピクセル、ファイルサイズ: 273キロバイト、MIME タイプ: image/jpeg)

概要

解説
English: Galaxies can take many forms — elliptical blobs, swirling spiral arms, bulges, and discs are all known components of the wide range of galaxies we have observed using telescopes like the NASA/ESA Hubble Space Telescope. However, some of the more intriguing objects in the sky around us include ring galaxies like the one pictured above — Zw II 28.

Ring galaxies are mysterious objects. They are thought to form when one galaxy slices through the disc of another, larger, one — as galaxies are mostly empty space, this collision is not as aggressive or as destructive as one might imagine. The likelihood of two stars physically colliding is minimal, and it is instead the gravitational effects of the two galaxies that causes the disruption.

This disruption upsets the material in both galaxies, causing it to redistribute to form a dense central core, encircled by bright stars. All this commotion causes clouds of gas and dust to collapse and triggers new periods of intense star formation in the outer ring, which is thus full of hot, young, blue stars and regions that are actively giving rise to new stars.

The sparkling pink and purple loop of Zw II 28 is not a typical ring galaxy due to its lack of a visible central companion. For many years it was thought to be a lone circle on the sky, but observations using Hubble have shown that there may be a possible companion lurking just inside the ring, where the loop appears to double back on itself. The galaxy has a knotty, swirling ring structure, with some areas appearing much brighter than others.

A version of this image was entered into the Hubble’s Hidden Treasures image processing competition by contestant Judy Schmidt.
日付
原典 http://www.spacetelescope.org/images/potw1310a/
作者

ESA/Hubble & NASA

Acknowledgement: Judy Schmidt

ライセンス

w:ja:クリエイティブ・コモンズ
表示
表示
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
Conditions:
  • The full image or footage credit must be presented in a clear and readable manner to all users, with the wording unaltered (for example: "ESA/Hubble"). Web texts should be credited to ESA/Hubble (except when used by media). The credit should not be hidden or disassociated from the image footage. Links should be active if the credit is online. See the usage rights Q&A section on the ESA copyright page for guidance.
  • ESA/Hubble materials may not be used to state or imply the endorsement by ESA/Hubble or any ESA/Hubble employee of a commercial product or service.
  • ESA/Hubble requests a copy of the product sent to them to be indexed in their archive.
  • If an image shows an identifiable person, using that image for commercial purposes may infringe that person's right of privacy, and separate permission should be obtained from the individual.
  • If images or visuals are changed significantly from the original work (apart from resizing, cropping), we suggest that the changes are mentioned after the credit line. For example "Original image by ESA/Hubble (M. Kornmesser), warping and recolouring by NN".

Notes:

  • Note that this general permission does not extend to the use of ESA/Hubble's logo, which shall remain protected and may not be used or reproduced without prior and individual written consent of ESA/Hubble.
  • Also note that music, scientific papers and code on the esahubble.org site are not released under this license and can not be used for non-ESA/Hubble products.
  • By reproducing ESA/Hubble material, in part or in full, the user acknowledges the terms on which such use is permitted.
w:ja:クリエイティブ・コモンズ
表示
このファイルはクリエイティブ・コモンズ 表示 4.0 国際ライセンスのもとに利用を許諾されています。
帰属: ESA/Hubble
あなたは以下の条件に従う場合に限り、自由に
  • 共有 – 本作品を複製、頒布、展示、実演できます。
  • 再構成 – 二次的著作物を作成できます。
あなたの従うべき条件は以下の通りです。
  • 表示 – あなたは適切なクレジットを表示し、ライセンスへのリンクを提供し、変更があったらその旨を示さなければなりません。これらは合理的であればどのような方法で行っても構いませんが、許諾者があなたやあなたの利用行為を支持していると示唆するような方法は除きます。

キャプション

このファイルの内容を1行で記述してください

このファイルに描写されている項目

題材

11 3 2013

ファイルの履歴

過去の版のファイルを表示するには、その版の日時をクリックしてください。

日付と時刻サムネイル寸法利用者コメント
現在の版2013年3月25日 (月) 19:292013年3月25日 (月) 19:29時点における版のサムネイル974 × 854 (273キロバイト)JmencisomUser created page with UploadWizard

以下のページがこのファイルを使用しています:

グローバルなファイル使用状況

以下に挙げる他のウィキがこの画像を使っています:

メタデータ