Dosya:A wanderer dancing the dance of stars and space.jpg

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Özet

Açıklama	English: The NASA/ESA Hubble Space Telescope provides us this week with a spectacular image of the bright star-forming ring that surrounds the heart of the barred spiral galaxy NGC 1097. In this image, the larger-scale structure of the galaxy is barely visible: its comparatively dim spiral arms, which surround its heart in a loose embrace, reach out beyond the edges of this frame. This face-on galaxy, lying 45 million light-years away from Earth in the southern constellation of Fornax (The Furnace), is particularly attractive for astronomers. NGC 1097 is a Seyfert galaxy. Lurking at the very centre of the galaxy, a supermassive black hole 100 million times the mass of our Sun is gradually sucking in the matter around it. The area immediately around the black hole shines powerfully with radiation coming from the material falling in. The distinctive ring around the black hole is bursting with new star formation due to an inflow of material toward the central bar of the galaxy. These star-forming regions are glowing brightly thanks to emission from clouds of ionised hydrogen. The ring is around 5000 light-years across, although the spiral arms of the galaxy extend tens of thousands of light-years beyond it. NGC 1097 is also pretty exciting for supernova hunters. The galaxy experienced three supernovae (the violent deaths of high-mass stars) in the 11-year span between 1992 and 2003. This is definitely a galaxy worth checking on a regular basis. However, what it is really exciting about NGC 1097 is that it is not wandering alone through space. It has two small galaxy companions, which dance “the dance of stars and the dance of space” like the gracious dancer of the famous poem The Dancer by Khalil Gibran. The satellite galaxies are NGC 1097A, an elliptical galaxy orbiting 42 000 light-years from the centre of NGC 1097 and a small dwarf galaxy named NGC 1097B. Both galaxies are located out beyond the frames of this image and they cannot be seen. Astronomers have indications that NGC 1097 and NGC 1097A have interacted in the past. This picture was taken with Hubble’s Advanced Camera for Surveys using visual and infrared filters. A version of this image was submitted to the Hubble’s Hidden Treasures image processing competition by contestant Eedresha Sturdivant.
Tarih	24 Aralık 2012, 10:00:00
Kaynak	http://www.spacetelescope.org/images/potw1252a/
Yazar	ESA/Hubble & NASA; Acknowledgement: E. Sturdivant

Lisanslama

atıf

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Şu seçeneklerde özgürsünüz:

paylaşım – eser paylaşımı, dağıtımı ve iletimi
içeriği değiştirip uyarlama – eser adaptasyonu

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atıf – Esere yazar veya lisans sahibi tarafından belirtilen (ancak sizi ya da eseri kullanımınızı desteklediklerini ileri sürmeyecek bir) şekilde atıfta bulunmalısınız.

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	Tarih/Saat	Küçük resim	Boyutlar	Kullanıcı	Yorum
güncel	13.09, 26 Aralık 2012		4.090 × 2.694 (5,86 MB)	Jmencisom	User created page with UploadWizard

Dosya kullanımı

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Seyfert galaksisi

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Bu dosyada, muhtemelen fotoğraf makinesi ya da tarayıcı tarafından eklenmiş ek bilgiler mevcuttur. Eğer dosyada sonradan değişiklik yapıldıysa, bazı bilgiler yeni değişikliğe göre eski kalmış olabilir.

Katkı/Sağlayıcı	ESA/Hubble & NASAAcknowledgement: E. Sturdivant
Kaynak	ESA/Hubble
Kısa başlık	A wanderer dancing the dance of stars and space
Resim başlığı	The NASA/ESA Hubble Space Telescope provides us this week with a spectacular image of the bright star-forming ring that surrounds the heart of the barred spiral galaxy NGC 1097. In this image, the larger-scale structure of the galaxy is barely visible: its comparatively dim spiral arms, which surround its heart in a loose embrace, reach out beyond the edges of this frame. This face-on galaxy, lying 45 million light-years away from Earth in the southern constellation of Fornax (The Furnace), is particularly attractive for astronomers. NGC 1097 is a Seyfert galaxy. Lurking at the very centre of the galaxy, a supermassive black hole 100 million times the mass of our Sun is gradually sucking in the matter around it. The area immediately around the black hole shines powerfully with radiation coming from the material falling in. The distinctive ring around the black hole is bursting with new star formation due to an inflow of material toward the central bar of the galaxy. These star-forming regions are glowing brightly thanks to emission from clouds of ionised hydrogen. The ring is around 5000 light-years across, although the spiral arms of the galaxy extend tens of thousands of light-years beyond it. NGC 1097 is also pretty exciting for supernova hunters. The galaxy experienced three supernovae (the violent deaths of high-mass stars) in the 11-year span between 1992 and 2003. This is definitely a galaxy worth checking on a regular basis. However, what it is really exciting about NGC 1097 is that it is not wandering alone through space. It has two small galaxy companions, which dance“the dance of stars and the dance of space” like the gracious dancer of the famous poem The Dancer by Khalil Gibran. The satellite galaxies are NGC 1097A, an elliptical galaxy orbiting 42 000 light-years from the centre of NGC 1097 and a small dwarf galaxy named NGC 1097B. Both galaxies are located out beyond the frames of this image and they cannot be seen. Astronomers have indications that NGC 1097 and NGC 1097A have interacted in the past. This picture was taken with Hubble’s Advanced Camera for Surveys using visual and infrared filters. A version of this image was submitted to the Hubble’s Hidden Treasures image processing competition by contestant Eedresha Sturdivant.
Kullanım şartları	Creative Commons Attribution 3.0 Unported license
Verinin ilk yaratılma zamanı	10.00, 24 Aralık 2012
Anahtar kelimeler	NGC 1097
İletişim bilgileri	http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany

Dosya:A wanderer dancing the dance of stars and space.jpg

Özet

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betimlenen

telif hakkı durumu

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Creative Commons Atıf 4.0 Uluslararası

kuruluşu

24 Aralık 2012

ortam türü

image/jpeg

sağlama toplamı

fa6d5e4f987035021c1d55870131e593790a730d

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6.139.612 bayt

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2.694 piksel

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4.090 piksel

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