Fișier:Accretion disk.jpg

Conținutul paginii nu este suportat în alte limbi.
De la Wikipedia, enciclopedia liberă

Mărește rezoluția imaginii ‎(3.000 × 2.400 pixeli, mărime fișier: 679 KB, tip MIME: image/jpeg)

Acest fișier se află la Wikimedia Commons. Consultați pagina sa descriptivă acolo.

Descriere fișier

Descriere
English: Artist's rendition of a black hole with an orbiting companion star that overflows its Roche lobe. Mass from the companion star is drawn towards the black hole, forming an accretion disk. GRO J1655-40 is the second so-called 'microquasar' discovered in our Galaxy. Microquasars are black holes of about the same mass as a star. They behave as scaled-down versions of much more massive black holes that are at the cores of extremely active galaxies, called quasars. Astronomers have known about the existence of stellar-mass black holes since the early 1970s. Their masses can range from 3.5 to approximately 15 times the mass of our Sun. Using Hubble data, astronomers were able to describe the black-hole system. The companion star had apparently survived the original supernova explosion that created the black hole. It is an aging star that completes an orbit around the black hole every 2.6 days. It is being slowly devoured by the black hole. Blowtorch-like jets (shown in blue) are streaming away from the black-hole system at 90 percent of the speed of light.
Dată (released)
Sursă https://hubblesite.org/contents/media/images/2002/30/1273-Image.html
Autor ESA, NASA, and Felix Mirabel (French Atomic Energy Commission and Institute for Astronomy and Space Physics/Conicet of Argentina)

Licențiere

w:ro:Creative Commons
atribuind
atribuind
 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:ro:Creative Commons
atribuind
Acest fișier a fost eliberat sub licența Creative Commons Atribuire 4.0 Internațională.
Atribuire: ESA/Hubble
Sunteți liber:
  • să partajați cu alții – aveți dreptul de a copia, distribui și transmite opera
  • să adaptați – aveți dreptul de a adapta opera
În următoarele condiții:
  • atribuind – Trebuie să atribuiți opera corespunzător, introducând o legătură către licență și indicând dacă ați făcut schimbări. Puteți face asta prin orice metodă rezonabilă, dar nu într-un fel care ar sugera faptul că persoana ce a licențiat conținutul v-ar susține sau ar aproba folosirea de către dumneavoastră a operei sale.
This file, which was originally posted to Hubble Site, was reviewed on 17 May 2020 by reviewer Green Giant, who confirmed that it was available there under the stated license on that date.

Captions

Add a one-line explanation of what this file represents
Artist's View of Black Hole and Companion Star GRO J1655-40

Items portrayed in this file

subiectul reprezentat

înființare

18 noiembrie 2002

tip MIME

image/jpeg

checksum engleză

da19afbdec9668502d387f08435b13e7055edcc4

metoda de determinare: SHA-1 engleză

înălțime

2.400 pixel

lățime

3.000 pixel

Istoricul fișierului

Apăsați pe Data și ora pentru a vedea versiunea trimisă atunci.

Data și oraMiniaturăDimensiuniUtilizatorComentariu
actuală26 aprilie 2019 18:17Miniatură pentru versiunea din 26 aprilie 2019 18:173.000x2.400 (679 KB)FriedrichKiefererBetter quality.
16 martie 2005 02:12Miniatură pentru versiunea din 16 martie 2005 02:123.000x2.400 (112 KB)Bebenko~commonswikicopy-paste from english wiki

Utilizarea globală a fișierului

Următoarele alte proiecte wiki folosesc acest fișier:

Vizualizați utilizările globale ale acestui fișier.

Adus de la https://ro.wikipedia.org/wiki/Fișier:Accretion_disk.jpg