Fichièr:Accretion disk.jpg

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Fichièr d'origina ‎(3 000 × 2 400 pixèl, talha del fichièr: 679 Ko, tipe MIME: image/jpeg)

Descripcion

Descripcion
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.
Data (released)
Font 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)

Publicat jos licéncia(s)

w:oc:Creative Commons
atribucion
atribucion
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w:oc:Creative Commons
atribucion
Ce fichier est disponible selon les termes de la licence Creative Commons Attribution 4.0 International.
Atribucion: ESA/Hubble
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Aquest fitxer, que originalment va ser publicat en Hubble Site, va ser revisat 17 May 2020 pel revisor Green Giant, qui va confirmar que estava disponible allà sota la llicència establerta en aquesta data.

Llegendes

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Artist's View of Black Hole and Companion Star GRO J1655-40

Elements representats en aquest fitxer

subjècte representat

tipus de mèdia d'Internet catalan

image/jpeg

suma de verificació catalan

da19afbdec9668502d387f08435b13e7055edcc4

metòde de determinacion : Secure Hash Algorithm 1 catalan

mida de les dades catalan

695 507 Byte

auçada

2 400 píxel

amplada catalan

3 000 píxel

Istoric del fichièr

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Data e oraMiniaturaDimensionsUtilizaireComentari
actual26 abril de 2019 a 15.17Miniatura per la version del 26 abril de 2019 a 15.173 000×2 400 (679 Ko)FriedrichKiefererBetter quality.
15 març de 2005 a 23.12Miniatura per la version del 15 març de 2005 a 23.123 000×2 400 (112 Ko)Bebenko~commonswikicopy-paste from english wiki

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Recuperada de « https://oc.wikipedia.org/wiki/Fichièr:Accretion_disk.jpg »