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Fitxer:Microquasar GRO J1655-40.jpg

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Fitxer original (3.000 × 2.400 píxels, mida del fitxer: 679 Ko, tipus MIME: image/jpeg)

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Resum

Descripció
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://science.nasa.gov/asset/hubble/artists-view-of-black-hole-and-companion-star-gro-j1655-40
Autor ESA, NASA, and Felix Mirabel (French Atomic Energy Commission and Institute for Astronomy and Space Physics/Conicet of Argentina)

Llicència

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reconeixement
This file is licensed under the Creative Commons Attribution 4.0 International license.
Reconeixement:
ESA/Hubble
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  • adaptar – fer-ne obres derivades
Amb les condicions següents:
  • reconeixement – Heu de donar la informació adequada sobre l'autor, proporcionar un enllaç a la llicència i indicar si s'han realitzat canvis. Podeu fer-ho amb qualsevol mitjà raonable, però de cap manera no suggereixi que l'autor us dóna suport o aprova l'ús que en feu.
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.

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

Elements representats en aquest fitxer

representa l'entitat

disc d'acreció

mida de les dades

695.507 byte

alçària

2.400 píxel

amplada

3.000 píxel

Historial del fitxer

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Data/horaMiniaturaDimensionsUsuari/aComentari
actual17:17, 26 abr 2019Miniatura per a la versió del 17:17, 26 abr 20193.000 × 2.400 (679 Ko)wikimediacommons>FriedrichKiefererBetter quality.

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