Wikipédia

Ficheiro:Lasers and supermassive black holes UGC 6093.jpg

Imagem numa resolução maior (3 918 × 2 052 píxeis, tamanho: 2,78 MB, tipo MIME: image/jpeg)

Descrição do ficheiro

Descrição
English: This image, captured by the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 (WFC3), shows a galaxy named UGC 6093. As can be easily seen, UGC 6093 is something known as a barred spiral galaxy — it has beautiful arms that swirl outwards from a bar slicing through the galaxy’s centre. It is classified as an active galaxy, which means that it hosts an active galactic nucleus, or AGN: a compact region at a galaxy’s centre within which material is dragged towards a supermassive black hole. As this black hole devours the surrounding matter it emits intense radiation, causing it to shine brightly.

But UGC 6093 is more exotic still. The galaxy essentially acts as a giant astronomical laser that spews out light at microwave, not visible, wavelengths — this type of object is dubbed a megamaser (maser being the term for a microwave laser). Megamasers such as UGC 6093 can be some 100 million times brighter than masers found in galaxies like the Milky Way.

Hubble’s WFC3 observes light spanning a range wavelengths — from the near-infrared, through the visible range, to the near-ultraviolet. It has two channels that detect and process different light, allowing astronomers to study a remarkable range of astrophysical phenomena; for example, the UV-visible channel can study galaxies undergoing massive star formation, while the near-infrared channel can study redshifted light from galaxies in the distant Universe. Such multi-band imaging makes Hubble invaluable in studying megamaser galaxies, as it is able to untangle their intriguing complexity.
Data
Origem http://www.spacetelescope.org/images/potw1801a/
Autor ESA/Hubble & NASA

Licenciamento

w:pt:Creative Commons
atribuição
atribuição
 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:pt:Creative Commons
atribuição
A utilização deste ficheiro é regulada nos termos da licença Creative Commons Atribuição 4.0 Internacional.
Atribuição: ESA/Hubble
Pode:
  • partilhar – copiar, distribuir e transmitir a obra
  • recombinar – criar obras derivadas
De acordo com as seguintes condições:
  • atribuição – Tem de fazer a devida atribuição da autoria, fornecer uma hiperligação para a licença e indicar se foram feitas alterações. Pode fazê-lo de qualquer forma razoável, mas não de forma a sugerir que o licenciador o apoia ou subscreve o seu uso da obra.

Legendas

Adicione uma explicação de uma linha do que este ficheiro representa

Elementos retratados neste ficheiro

retrata

Um valor sem um elemento no repositório Wikidata

Histórico do ficheiro

Clique uma data e hora para ver o ficheiro tal como ele se encontrava nessa altura.

Data e horaMiniaturaDimensõesUtilizadorComentário
atual14h30min de 1 de janeiro de 2018Miniatura da versão das 14h30min de 1 de janeiro de 20183 918 × 2 052 (2,78 MB)JmencisomUser created page with UploadWizard

A seguinte página usa este ficheiro:

Utilização global do ficheiro

Metadados

Este ficheiro contém informação adicional, provavelmente adicionada a partir da câmara digital ou scanner utilizada para criar ou digitalizar a imagem. Caso o ficheiro tenha sido modificado a partir do seu estado original, alguns detalhes poderão não refletir completamente as mudanças efetuadas.

Obtida de "https://pt.wikipedia.org/wiki/Ficheiro:Lasers_and_supermassive_black_holes_UGC_6093.jpg"