File:PIA18468-SuperNova-PuppisA-XRayIR-20140821.jpg

Da Vikidia, l'enciclopedia libera dagli 8 ai 13 anni.
Vai alla navigazione Vai alla ricerca

File originale ‎(2 051 × 1 591 pixel, dimensione del file: 1,61 MB, tipo MIME: image/jpeg)

Questo file proviene da Wikimedia Commons e può essere utilizzato da altri progetti. Di seguito viene mostrata la descrizione presente nella pagina di descrizione del file.

Dettagli

Descrizione
English: Supernova Seen In Two Lights — The destructive results of a mighty supernova explosion reveal themselves in a delicate blend of infrared and X-ray light, as seen in this image from NASA’s Spitzer Space Telescope and Chandra X-Ray Observatory, and the European Space Agency's XMM-Newton.

The bubbly cloud is an irregular shock wave, generated by a supernova that would have been witnessed on Earth 3,700 years ago. The remnant itself, called Puppis A, is around 7,000 light-years away, and the shock wave is about 10 light-years across.

The pastel hues in this image reveal that the infrared and X-ray structures trace each other closely. Warm dust particles are responsible for most of the infrared light wavelengths, assigned red and green colors in this view. Material heated by the supernova’s shock wave emits X-rays, which are colored blue. Regions where the infrared and X-ray emissions blend together take on brighter, more pastel tones.

The shock wave appears to light up as it slams into surrounding clouds of dust and gas that fill the interstellar space in this region. From the infrared glow, astronomers have found a total quantity of dust in the region equal to about a quarter of the mass of our sun. Data collected from Spitzer’s infrared spectrograph reveal how the shock wave is breaking apart the fragile dust grains that fill the surrounding space.

Supernova explosions forge the heavy elements that can provide the raw material from which future generations of stars and planets will form. Studying how supernova remnants expand into the galaxy and interact with other material provides critical clues into our own origins.

Infrared data from Spitzer’s multiband imaging photometer (MIPS) at wavelengths of 24 and 70 microns are rendered in green and red. X-ray data from XMM-Newton spanning an energy range of 0.3 to 8 kiloelectron volts are shown in blue.
Data (release)
Fonte http://www.nasa.gov/jpl/spitzer/chandra/pia18468/ (image link); see also https://photojournal.jpl.nasa.gov/catalog/PIA18468, http://chandra.harvard.edu/photo/2014/puppisa/, and http://www.spitzer.caltech.edu/images/5923-sig14-022-Supernova-Seen-In-Two-Lights
Autore X-ray: NASA/CXC/IAFE/G.Dubner et al & ESA/XMM-Newton; Infrared: NASA/ESA/JPL-Caltech/GSFC/IAFE

Licenza

XMM-Newton:

This media was created by the European Space Agency (ESA).
Where expressly so stated, images or videos are covered by the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence, ESA being an Intergovernmental Organisation (IGO), as defined by the CC BY-SA 3.0 IGO licence. The user is allowed under the terms and conditions of the CC BY-SA 3.0 IGO license to Reproduce, Distribute and Publicly Perform the ESA images and videos released under CC BY-SA 3.0 IGO licence and the Adaptations thereof, without further explicit permission being necessary, for as long as the user complies with the conditions and restrictions set forth in the CC BY-SA 3.0 IGO licence, these including that:
  • the source of the image or video is duly credited (Examples: "Credit: ESA/Rosetta/NavCam – CC BY-SA IGO 3.0", "ESA/DLR/FU Berlin, CC BY-SA IGO 3.0", "ESA/Photographer’s name, CC BY-SA IGO 3.0"), and
  • a direct link to the CC BY-SA 3.0 IGO license text is provided, and
  • if changes were made to the original image or video, there is a clear statement on the Adaptation indicating that changes were made to the original content; Adaptations must be Distributed or Publicly Performed under the Applicable License, as set forth in Article 4b of the CC BY-SA 3.0 IGO licence.
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
w:it:Creative Commons
attribuzione condividi allo stesso modo
Questo file è disponibile in base alla licenza Creative Commons Attribuzione-Condividi allo stesso modo 3.0 OIG
Attribuzione: ESA/XMM-Newton, CC BY-SA IGO 3.0
Tu sei libero:
  • di condividere – di copiare, distribuire e trasmettere quest'opera
  • di modificare – di adattare l'opera
Alle seguenti condizioni:
  • attribuzione – Devi fornire i crediti appropriati, un collegamento alla licenza e indicare se sono state apportate modifiche. Puoi farlo in qualsiasi modo ragionevole, ma non in alcun modo che suggerisca che il licenziante approvi te o il tuo uso.
  • condividi allo stesso modo – Se remixi, trasformi o sviluppi il materiale, devi distribuire i tuoi contributi in base alla stessa licenza o compatibile all'originale.

Chandra and Spitzer:

Public domain Questo file è nel pubblico dominio perché creato dalla NASA. La politica sul copyright della NASA afferma che «il materiale della NASA non è protetto da copyright a meno che non sia specificato altrimenti». (NASA copyright policy e JPL Image Use Policy).
Attenzione:

Didascalie

Aggiungi una brevissima spiegazione di ciò che questo file rappresenta

Elementi ritratti in questo file

raffigura

tipo di file

image/jpeg

Cronologia del file

Fare clic su un gruppo data/ora per vedere il file come si presentava nel momento indicato.

Data/OraMiniaturaDimensioniUtenteCommento
attuale14:45, 22 ago 2014Miniatura della versione delle 14:45, 22 ago 20142 051 × 1 591 (1,61 MB)wikimediacommons>DrbogdanUser created page with UploadWizard

La seguente pagina usa questo file:

Estratto da "http://it.vikidia.org/wiki/File:PIA18468-SuperNova-PuppisA-XRayIR-20140821.jpg"