Ficheiro:An intriguing young-looking dwarf galaxy.jpg
Os contidos da páxina non están dispoñibles noutras linguas.
Aparencia
Na Galipedia, a Wikipedia en galego.
Tamaño desta vista previa: 800 × 389 píxeles. Outras resolucións: 320 × 156 píxeles | 640 × 312 píxeles | 1.280 × 623 píxeles.
Ficheiro orixinal (1.280 × 623 píxeles; tamaño do ficheiro: 142 kB; tipo MIME: image/jpeg)
Este ficheiro procede de Wikimedia Commons. A continuación móstrase a información da súa páxina de descrición. Commons é un repositorio libre de ficheiros multimedia. Pode contribuír alí cargando as súas imaxes. |
Resumo
DescriciónAn intriguing young-looking dwarf galaxy.jpg |
English: The bright streak of glowing gas and stars in this NASA/ESA Hubble Space Telescope image is known as PGC 51017, or SBSG 1415+437. It is type of galaxy known as a blue compact dwarf. This particular dwarf is well studied and has an interesting star formation history. Astronomers initially thought that SBS 1415+437 was a very young galaxy currently undergoing its very first burst of star formation, but more recent studies have suggested that the galaxy is in fact a little older, containing stars over 1.3 billion years old. Starbursts are an area of ongoing research for astronomers — short-lived and intense periods of star formation, during which huge amounts of gas within a galaxy are hungrily used up to form newborn stars. They have been seen in gas-rich disc galaxies, and in some lower-mass dwarfs. However, it is still unclear whether all dwarf galaxies experience starbursts as part of their evolution. It is possible that dwarf galaxies undergo a star formation cycle, with bursts occurring repeatedly over time. SBS 1415+437 is an interesting target for another reason. Dwarf galaxies like this are thought to have formed early in the Universe, producing some of the very first stars before merging together to create more massive galaxies. Dwarf galaxies which contain very few of the heavier elements formed from having several generations of stars, like SBS 1415+437, remain some of the best places to study star-forming processes similar to those thought to occur in the early Universe. However, it seems that our nearby patch of the Universe may not contain any galaxies that are currently undergoing their first burst of star formation. A version of this image was entered into the Hubble’s Hidden Treasures image processing competition by contestant Nick Rose. |
Data | |
Orixe | http://www.spacetelescope.org/images/potw1511a/ |
Autoría |
ESA/Hubble & NASA Acknowledgement: Alessandra Aloisi (STScI) and Nick Rose |
Licenza
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:
Notes:
|
Este ficheiro está licenciado baixo a licenza Creative Commons recoñecemento 4.0 internacional.
Recoñecemento: ESA/Hubble
- Vostede é libre de:
- compartir – copiar, distribuír e difundir a obra
- facer obras derivadas – adaptar a obra
- Baixo as seguintes condicións:
- recoñecemento – Debe indicar a debida atribución de autoría, fornecer unha ligazón á licenza e indicar se se realizaron cambios. Pode facer isto de calquera forma razoable, mais non nunha forma que indique que quen posúe a licenza apoia ou subscribe o seu uso da obra.
Elementos retratados neste ficheiro
representa a
16 marzo 2015
image/jpeg
f4522b7d7f30ab7e92ab45584de8acba40cce345
tamanho dos dados portugués
145.657 Byte
623 píxel
1.280 píxel
Historial do ficheiro
Prema nunha data/hora para ver o ficheiro tal e como estaba nese momento.
Data/Hora | Miniatura | Dimensións | Usuario | Comentario | |
---|---|---|---|---|---|
actual | 17 de marzo de 2015 ás 02:28 | 1.280 × 623 (142 kB) | Jmencisom | User created page with UploadWizard |
Uso do ficheiro
A seguinte páxina usa este ficheiro:
Uso global do ficheiro
Os seguintes wikis empregan esta imaxe:
- Uso en bg.wikipedia.org
- Uso en ca.wikipedia.org
- Uso en de.wikipedia.org
- Uso en el.wikipedia.org
- Uso en en.wikipedia.org
- Uso en es.wikipedia.org
- Uso en fr.wikipedia.org
- Uso en hy.wikipedia.org
- Uso en pt.wikipedia.org
- Uso en ru.wikipedia.org
- Uso en sr.wikipedia.org
Metadatos
Este ficheiro contén información adicional, probablemente engadida pola cámara dixital ou polo escáner usado para crear ou dixitalizar a imaxe. Se o ficheiro orixinal foi modificado, poida que algúns detalles non se reflictan no ficheiro modificado.
Créditos/Provedor | ESA/Hubble & NASA Acknowledgement: Alessandra Aloisi (STScI) and Nick Rose |
---|---|
Orixe | ESA/Hubble |
Título curto |
|
Título da imaxe |
|
Termos de uso |
|
Data e hora de xeración do ficheiro | 16 de marzo de 2015 ás 10:00 |
Software utilizado | Adobe Photoshop CC 2014 (Windows) |
Identificación única do documento orixinal | xmp.did:ed00000f-d829-8f45-8c1a-c0ad67cdb1cf |
Palabras clave | PGC 51017 |
Información de contacto |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
Versión IIM | 4 |