File:Eso1425a.jpg
Archivo original (15 326 × 8212 píxeles; tamaño de archivo: 89,98 MB; tipo MIME: image/jpeg)
Leyendas
Resumen
[editar]Atención | El archivo original tiene un número considerable de píxeles; si se abre en su resolución original, es posible que no se cargue correctamente o que provoque un bloqueo en el funcionamiento del navegador. Para evitar estos problemas puede utilizarse ZoomViewer. | Abrir en ZoomViewer |
---|
DescripciónEso1425a.jpg |
English: A Spectacular Landscape of Star Formation
This image, captured by the Wide Field Imager at ESO’s La Silla Observatory in Chile, shows two dramatic star formation regions in the southern Milky Way. The first is of these, on the left, is dominated by the star cluster NGC 3603, located 20 000 light-years away, in the Carina–Sagittarius spiral arm of the Milky Way galaxy. The second object, on the right, is a collection of glowing gas clouds known as NGC 3576 that lies only about half as far from Earth. NGC 3603 is a very bright star cluster and is famed for having the highest concentration of massive stars that have been discovered in our galaxy so far. At the centre lies a Wolf–Rayet multiple star system, known as HD 97950. Wolf–Rayet stars are at an advanced stage of stellar evolution, and start off with around 20 times the mass of the Sun. But, despite this large mass, Wolf–Rayet stars shed a considerable amount of their matter due to intense stellar winds, which blast the star’s surface material off into space at several million kilometres per hour, a crash diet of cosmic proportions. NGC 3603 is in an area of very active star formation. Stars are born in dark and dusty regions of space, largely hidden from view. But as the very young stars gradually start to shine and clear away their surrounding cocoons of material they become visible and create glowing clouds in the surrounding material, known as HII regions. HII regions shine because of the interaction of ultraviolet radiation given off by the brilliant hot young stars with the hydrogen gas clouds. HII regions can measure several hundred light-years in diameter, and the one surrounding NGC 3603 has the distinction of being the most massive in our galaxy. The cluster was first observed by John Herschel on 14 March 1834 during his three-year expedition to systematically survey the southern skies from near Cape Town. He described it as a remarkable object and thought that it might be a globular star cluster. Future studies showed that it is not an old globular, but a young open cluster, one of the richest known. NGC 3576, on the right of the image, also lies in the Carina–Sagittarius spiral arm of the Milky Way. But it is located only about 9000 light-years from Earth — much closer than NGC 3603, but appearing next to it in the sky. NGC 3576 is notable for two huge curved objects resembling the curled horns of a ram. These odd filaments are the result of stellar winds from the hot, young stars within the central regions of the nebula, which have blown the dust and gas outwards across a hundred light-years. Two dark silhouetted areas known as Bok globules are also visible in this vast complex of nebulae. These black clouds near the top of the nebula also offer potential sites for the future formation of new stars. NGC 3576 was also discovered by John Herschel in 1834, making it a particularly productive and visually rewarding year for the English astronomer. |
Fecha | |
Fuente | http://www.eso.org/public/news/eso1425/ |
Autor | ESO/G. Beccari |
Permiso (Reutilización de este archivo) |
http://www.eso.org/public/outreach/copyright/ |
Licencia
[editar]This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
Este archivo está disponible bajo la licencia Creative Commons Atribución 4.0 Internacional.
|
Historial del archivo
Haz clic sobre una fecha y hora para ver el archivo tal como apareció en ese momento.
Fecha y hora | Miniatura | Dimensiones | Usuario | Comentario | |
---|---|---|---|---|---|
actual | 21:06 21 ago 2014 | 15 326 × 8212 (89,98 MB) | Fabian RRRR (discusión | contribs.) | non progressive | |
20:35 21 ago 2014 | 15 326 × 8212 (84,29 MB) | Fabian RRRR (discusión | contribs.) | Higher resolution (http://www.eso.org/public/archives/images/large/eso1425a.jpg reencoded < 100 MB) | ||
06:22 21 ago 2014 | 4000 × 2143 (7,57 MB) | Fabian RRRR (discusión | contribs.) | == {{int:filedesc}} == {{Information |Description={{en|1='''A Spectacular Landscape of Star Formation This image, captured by the Wide Field Imager at ESO’s La Silla Observatory in Chile, shows two dramatic star formation regions in the southern Mil... |
No puedes sobrescribir este archivo.
Usos del archivo
Las siguientes páginas usan este archivo:
- File:Star formation in the southern Milky Way.jpg (archivo de redirección)
- File:Star formation in the southern Milky Way (14995496845).jpg (archivo de redirección)
Uso global del archivo
Las wikis siguientes utilizan este archivo:
Metadatos
Este archivo contiene información adicional, probablemente añadida por la cámara digital o el escáner usado para crearlo o digitalizarlo.
Si el archivo ha sido modificado desde su estado original, pueden haberse perdido algunos detalles.
Crédito/proveedor | ESO/G. Beccari |
---|---|
Fuente | European Southern Observatory |
Título breve |
|
Título de la imagen |
|
Términos de uso |
|
Fecha y hora de la generación de los datos | 12:00 20 ago 2014 |
Orientación | Normal |
Resolución horizontal | 72 ppp |
Resolución vertical | 72 ppp |
Software usado | GIMP 2.8.2 |
Fecha y hora de modificación del archivo | 22:53 21 ago 2014 |
Versión de Exif | 2.1 |
Versión admitida de Flashpix | 1 |
Espacio de color | Sin calibrar |
Fecha y hora de la digitalización | 23:53 9 abr 2013 |
Fecha en la cual fueron modificados por última vez los metadatos | 12:47 6 ago 2014 |
Palabras clave | NGC 3603 |
Id. único del documento original | xmp.did:28A4C9E14AA1E211A17995D2E905672B |