Wikipedia

File:ALMA’s Hole in the Universe.jpg

File originale ‎(3 816 × 3 559 pixel, dimensione del file: 2,7 MB, tipo MIME: image/jpeg)

Logo di Commons
Logo di Commons
 Questo file e la sua pagina di descrizione (discussione · modifica) si trovano su Wikimedia Commons (?)

Dettagli

Descrizione
English: The events surrounding the Big Bang were so cataclysmic that they left an indelible imprint on the fabric of the cosmos. We can detect these scars today by observing the oldest light in the Universe. As it was created nearly 14 billion years ago, this light — which exists now as weak microwave radiation and is thus named the cosmic microwave background (CMB) — has now expanded to permeate the entire cosmos, filling it with detectable photons. The CMB can be used to probe the cosmos via something known as the Sunyaev-Zel’dovich (SZ) effect, which was first observed over 30 years ago. We detect the CMB here on Earth when its constituent microwave photons travel to us through space. On their journey to us, they can pass through galaxy clusters that contain high-energy electrons. These electrons give the photons a tiny boost of energy. Detecting these boosted photons through our telescopes is challenging but important — they can help astronomers to understand some of the fundamental properties of the Universe, such as the location and distribution of dense galaxy clusters. This image shows the first measurements of the thermal Sunyaev-Zel’dovich effect from the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile (in blue). Astronomers combined data from ALMA’s 7- and 12-metre antennas to produce the sharpest possible image. The target was one of the most massive known galaxy clusters, RX J1347.5–1145, the centre of which shows up here in the dark “hole” in the ALMA observations. The energy distribution of the CMB photons shifts and appears as a temperature decrease at the wavelength observed by ALMA, hence a dark patch is observed in this image at the location of the cluster. Links ESA/Hubble Picture of the Week
Data
Fonte https://www.eso.org/public/images/potw1708a/
Autore ALMA (ESO/NAOJ/NRAO)/T. Kitayama (Toho University, Japan)/ESA/Hubble & NASA

Licenza

w:it:Creative Commons
attribuzione
attribuzione
This image was produced by the ALMA Observatory.
Unless specifically noted, the images and videos distributed from the public ALMA websites (www.almaobservatory.org, www.alma.cl, and kids.alma.cl) along with the texts of press releases, announcements, pictures of the week 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. Details on how to interpret this are given below for those who need further explanation. See the ALMA copyright notice for complete information.

Conditions:

  • If you want to use our materials without having to pay, the full image or footage credit must be presented in a clear and readable manner to all users, with the wording unaltered (for example: "Ralph Bennett – ALMA (ESO/NAOJ/NRAO)". The credit should not be hidden or disassociated from the image footage. Links should be active if the credit is online. See the copyright Q&A section on this page for guidance.
  • The text of press releases, announcements, pictures of the week and captions should be credited to ALMA, except when used by media.
  • ALMA materials, images and videos may not be used to state or imply the endorsement by ALMA or any ALMA employee, or ALMA partner (ESO, NRAO, or NAOJ) of a commercial product or service.
  • We welcome a copy of the product sent to us to be indexed in our archive. Please send it to copyright@alma.cl.
  • If an image includes a picture of an identifiable person, using that image for commercial purposes is not permitted.

Notes:

  • Note that this general permission does not extend to the use of ALMA's logo, which shall remain protected and may not be used or reproduced without prior and individual written consent of ALMA. Owners of external websites wishing to link to the ALMA web site may use ALMA's logo for the link, provided they have obtained prior authorization from the ALMA Education and Public Outreach Department and on the condition that such use is clearly identifiable as a web link.
  • Also note that music, scientific papers, code, and text other than press releases, announcements, pictures of the week and captions on this site are not released under the Creative Commons Attribution 4.0 International License and cannot be used for non-ALMA products.
  • By reproducing ALMA material, in part or in full, the user acknowledges the terms on which such use is permitted.
w:it:Creative Commons
attribuzione
Questo file è disponibile in base alla licenza Creative Commons Attribuzione 4.0 Internazionale
Attribuzione: ALMA
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.

Didascalie

Aggiungi una brevissima spiegazione di ciò che questo file rappresenta

Elementi ritratti in questo file

raffigura

tipo di file

image/jpeg

checksum

8cb8dde5e5903e66066d76418568655decf00f1b

metodo di determinazione: SHA-1

dimensione dati

178 531 byte

altezza

1 194 pixel

larghezza

1 280 pixel

Cronologia del file

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

Data/OraMiniaturaDimensioniUtenteCommento
attuale12:45, 14 feb 2024Miniatura della versione delle 12:45, 14 feb 20243 816 × 3 559 (2,7 MB)C messierfull size
15:35, 20 feb 2017Miniatura della versione delle 15:35, 20 feb 20171 280 × 1 194 (174 KB)JmencisomUser created page with UploadWizard

La seguente pagina usa questo file:

Utilizzo globale del file

Anche i seguenti wiki usano questo file:

Metadati

Questo file contiene informazioni aggiuntive, probabilmente aggiunte dalla fotocamera o dallo scanner usati per crearlo o digitalizzarlo. Se il file è stato modificato, alcuni dettagli potrebbero non corrispondere alla realtà.

Estratto da "https://it.wikipedia.org/wiki/File:ALMA’s_Hole_in_the_Universe.jpg"