بلغات أخرى
- البنغاليّة: সক্রিয় ছায়াপথ কেন্দ্রীণ
- الألمانيّة: Aktiver Galaktischer Kern
- الإنجليزيّة: Active Galactic Nucleus
- الإسبانيّة: Núcleo Galáctico Activo
- الفرنسيّة: Noyau actif de galaxie
- الهندية: सक्रिय गैलेक्टिक नाभिक (ऍक्टिव्ह गॅलेक्टिक न्युक्लीअस)
- الإيطاليّة: Nucleo galattico attivo
- اليابانيّة: 活動銀河核 (رابط خارجي)
- الكوريّة: 활동은하핵
- المهاراتية: सक्रिय गॅलेक्टिक केंद्रक (ऍक्टिव्ह गॅलेक्टिक न्युक्लीअस)
- البرتغاليّة البرازيليّة: Núcleo Galáctico Ativo
- الصينيّة المبسطة: 活动星系核
- الصينيّة التقليدية: 活動星系核
وسائط ذات صلة
Jet Ejected from the Active Galaxy M87
الشرح: A 3000-light-year-long jet streaming from the core of galaxy M87, as captured by the Hubble Space Telescope. The center of this image shows the core of the elliptical galaxy M87 (in the constellation Virgo) which hosts an active galactic nucleus (AGN).
An AGN is a very luminous region around a supermassive black hole. It is powered by matter falling towards the black hole and forming a hot accretion disk. Many galaxies host a supermassive black hole, but not all of them are accreting enough matter to appear as an AGN.
The strong gravity of the supermassive black hole in the heart of M87 has caused a huge jet of charges particles to be flung out from the accretion disk. This extends far out into the galaxy itself, beyond the core region. Here we see the jet as a whitish-blue line which gets wider the further it goes from the core. The light emission we see here is caused by the energetic electrons in the jet interacting with magnetic fields.
المصدر: NASA, ESA, A. Lessing (Stanford University), E. Baltz (Stanford University), M. Shara (AMNH), J. DePasquale (STScI)
رابط المصدر
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
Hubble Image of Barred Spiral Galaxy UGC 6093
الشرح: This image from the Hubble Space Telescope shows the barred spiral galaxy UGC 6093. This galaxy has two spiral arms in its outer regions but the inner edge of each arm joins with the outer edge of a straight bar feature that goes across the galaxy's center.
This galaxy has been classified as an active galaxy due to the emissions of certain lines in its spectrum. This indicates that the supermassive black hole that lies in the center of the galaxy is accreting gas from its surroundings. Unlike some active galactic nuclei (AGN), the center of this galaxy does not shine especially brightly in the visible light so its status as an AGN is not immediately visible from this image.
المصدر: ESA/Hubble & NASA
رابط المصدر
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
