Wikibækur

Mynd:Accretion disk.jpg

Upphafleg skrá ‎(3.000 × 2.400 mynddílar, skráarstærð: 679 KB, MIME-gerð: image/jpeg)

Skrá þessi er af Wikimedia Commons, og deilt meðal annarra verkefna og nýtist því þar. Hér fyrir neðan er afrit af skráarsíðunni þar.

Lýsing

Lýsing
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.
Dagsetning (released)
Uppruni https://hubblesite.org/contents/media/images/2002/30/1273-Image.html
Höfundarréttarhafi ESA, NASA, and Felix Mirabel (French Atomic Energy Commission and Institute for Astronomy and Space Physics/Conicet of Argentina)

Leyfisupplýsingar:

w:en:Creative Commons
tilvísun höfundarréttar
tilvísun höfundarréttar
 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:en:Creative Commons
tilvísun höfundarréttar
This file is licensed under the Creative Commons Attribution 4.0 International license.
Tilvísun höfundarréttar: ESA/Hubble
Þér er frjálst:
  • að deila – að afrita, deila og yfirfæra verkið
  • að blanda – að breyta verkinu
Undir eftirfarandi skilmálum:
  • tilvísun höfundarréttar – Þú verður að tilgreina viðurkenningu á höfundarréttindum, gefa upp tengil á notkunarleyfið og gefa til kynna ef breytingar hafa verið gerðar. Þú getur gert þetta á einhvern ásættanlegan máta, en ekki á nokkurn þann hátt sem bendi til þess að leyfisveitandinn styðji þig eða notkun þína á verkinu.
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

depicts enska

stofndagsetning

18. nóvember 2002

MIME type enska

image/jpeg

checksum enska

da19afbdec9668502d387f08435b13e7055edcc4

determination method enska: SHA-1 enska

data size enska

695.507 Bæti

hæð

2.400 díll

breidd

3.000 díll

Breytingaskrá skjals

Smelltu á dagsetningu eða tímasetningu til að sjá hvernig hún leit þá út.

Dagsetning/TímiSmámyndVíddirNotandiAthugasemd
núverandi26. apríl 2019 kl. 15:17Smámynd útgáfunnar frá 26. apríl 2019, kl. 15:173.000 × 2.400 (679 KB)FriedrichKiefererBetter quality.
15. mars 2005 kl. 23:12Smámynd útgáfunnar frá 15. mars 2005, kl. 23:123.000 × 2.400 (112 KB)Bebenko~commonswikicopy-paste from english wiki

Eftirfarandi síða notar þessa skrá:

Altæk notkun skráar

Eftirfarandi wikar nota einnig þessa skrá:

Skoða frekari altæka notkun þessarar skráar.

Sótt frá „https://is.wikibooks.org/wiki/Mynd:Accretion_disk.jpg“