Датотека:Threads of blue IC 4870.jpg
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Опис измене
ОписThreads of blue IC 4870.jpg |
English: A ripple of bright blue threads through this galaxy like a misshapen lake system. The foreground of this image is littered with nearby stars with their gleaming diffraction spikes. A keen eye can also spot a few other galaxies that, while masquerading as stars at first glance, reveal their true nature on closer inspection.
The central galaxy streaked with colour, IC 4870, was discovered by DeLisle Stewart in 1900 and is located approximately 28 million light-years away. It contains an active galactic nucleus, or AGN: an extremely luminous central region so alight with radiation that it can outshine the rest of the galaxy put together. AGNs emit radiation across the complete electromagnetic spectrum, from radio waves to gamma-rays, produced by the action of a central supermassive black hole that is devouring material getting too close to it. IC 4870 is also a Seyfert galaxy, a particular kind of AGN with characteristic emission lines. IC 4870 has been imaged by Hubble for several studies of nearby active galaxies. By using Hubble to explore the small-scale structures of AGN in nearby galaxies, astronomers can observe the traces of collisions and mergers, central galactic bars, nuclear starbursts, jets or outflows, and other interactions between a galactic nucleus and its surrounding environment. Images such as this can help astronomers understand more about the true nature of the galaxies we see throughout the cosmos. |
Датум | |
Извор | http://www.spacetelescope.org/images/potw1823a/ |
Аутор | ESA/Hubble & NASA |
Лиценцирање
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:
Notes:
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- Дозвољено је:
- да делите – да умножавате, расподељујете и преносите дело
- да прерађујете – да прерадите дело
- Под следећим условима:
- ауторство – Морате да дате одговарајуће заслуге, обезбедите везу ка лиценци и назначите да ли су измене направљене. Можете то урадити на било који разуман манир, али не на начин који предлаже да лиценцатор одобрава вас или ваше коришћење.
Ставке приказане у овој датотеци
приказује
4. јун 2018
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Датум/време | Минијатура | Димензије | Корисник | Коментар | |
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тренутна | 18:45, 4. јун 2018. | 3.711 × 2.134 (3,66 MB) | Jmencisom | User created page with UploadWizard |
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Заслуге/пружалац услуга | ESA/Hubble & NASA |
Извор | ESA/Hubble |
Кратак наслов |
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Правила коришћења |
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Датум и време сликања | 06:00, 4. јун 2018. |
Коментар на датотеку JPEG | A ripple of bright blue threads through this galaxy like a misshapen lake system. The foreground of this image is littered with nearby stars with their gleaming diffraction spikes. A keen eye can also spot a few other galaxies that, while masquerading as stars at first glance, reveal their true nature on closer inspection. The central galaxy streaked with colour, IC 4870, was discovered by DeLisle Stewart in 1900 and is located approximately 40 million light-years away. It contains an active galactic nucleus, or AGN: an extremely luminous central region so alight with radiation that it can outshine the rest of the galaxy put together. AGNs emit radiation across the complete electromagnetic spectrum, from radio waves to gamma-rays, produced by the action of a central supermassive black hole that is devouring material getting too close to it. IC 4870 is also a Seyfert galaxy, a particular kind of AGN with characteristic emission lines. IC 4870 has been imaged by Hubble for several studies of nearby active galaxies. By using Hubble to explore the small-scale structures of AGN in nearby galaxies, astronomers can observe the traces of collisions and mergers, central galactic bars, nuclear starbursts, jets or outflows, and other interactions between a galactic nucleus and its surrounding environment. Images such as this can help astronomers understand more about the true nature of the galaxies we see throughout the cosmos. |
Кључне речи | IC 4870 |
Подаци за контакт |
-{R|http://www.spacetelescope.org}- Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM верзија | 4 |