Dosya:A spiral home to exploding stars.jpg

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Özet

AçıklamaA spiral home to exploding stars.jpg	English: In this new Hubble image, we can see an almost face-on view of the galaxy NGC 1084. At first glance, this galaxy is pretty unoriginal. Like the majority of galaxies that we observe it is a spiral galaxy, and, as with about half of all spirals, it has no bar running through its loosely wound arms. However, although it may seem unremarkable on paper, NGC 1084 is actually a near-perfect example of this type of galaxy — and Hubble has a near-perfect view of it. NGC 1084 has hosted several violent events known as supernovae — explosions that occur when massive stars, many times more massive than the Sun, approach their twilight years. As the fusion processes in their cores run out of fuel and come to an end, these stellar giants collapse, blowing off their outer layers in a violent explosion. Supernovae can often briefly outshine an entire galaxy, before then fading away over several weeks or months. Although directly observing one of these explosions is hard to do, in galaxies like NGC 1084 astronomers can find and study the remnants left behind. Astronomers have noted five supernova explosions within NGC 1084 over the past half century. These remnants are named after the year in which they took place — 1963P, 1996an, 1998dl, 2009H, and 2012ec. The most recent explosion, 2012ec, was detected at the end of NGC 1084’s top right arm in August 2012. It is not visible here as these images were taken in 2001, some eleven years before this supernova exploded. Astronomers at Queen's University Belfast have managed to use these "before" images to directly identify the star that exploded. It appears to be a red supergiant some 10 to 20 times more massive than the Sun, and quite similar to the well-known star Betelguese in Orion. A version of this image was entered into the Hubble's Hidden Treasures image processing competition by Flickr user Brian Campbell (Sinickel).
Tarih	31 Mart 2014, 10:00:00
Kaynak	http://www.spacetelescope.org/images/potw1413a/
Yazar	NASA, ESA, and S. Smartt (Queen's University Belfast) Acknowledgement: Brian Campbell

Lisanslama

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	Tarih/Saat	Küçük resim	Boyutlar	Kullanıcı	Yorum
güncel	23.09, 31 Mart 2014		2.134 × 1.953 (2,29 MB)	Jmencisom	User created page with UploadWizard

Dosya kullanımı

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Sarmal galaksi

Küresel dosya kullanımı

Aşağıdaki diğer vikiler bu dosyayı kullanmaktadır:

ar.wikipedia.org üzerinde kullanımı
- NGC 1084
ca.wikipedia.org üzerinde kullanımı
- Galàxia espiral
de.wikipedia.org üzerinde kullanımı
- NGC 1084
el.wikipedia.org üzerinde kullanımı
- NGC 1084
en.wikipedia.org üzerinde kullanımı
en.wikiquote.org üzerinde kullanımı
- Milky Way
eu.wikipedia.org üzerinde kullanımı
- Galaxia
fa.wikipedia.org üzerinde kullanımı
- ان‌جی‌سی ۱۰۸۴
fr.wikipedia.org üzerinde kullanımı
- NGC 1084
it.wikipedia.org üzerinde kullanımı
ko.wikipedia.org üzerinde kullanımı
- 나선 은하
lb.wikipedia.org üzerinde kullanımı
- NGC 1084
mk.wikipedia.org üzerinde kullanımı
- Спирална галаксија
pl.wikipedia.org üzerinde kullanımı
- NGC 1084
zh.wikipedia.org üzerinde kullanımı
- 螺旋星系

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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.

Kaynak	ESA/Hubble
Katkı/Sağlayıcı	NASA, ESA, and S. Smartt (Queen's University Belfast)Acknowledgement: Brian Campbell
Resim başlığı	In this new Hubble image, we can see an almost face-on view of the galaxy NGC 1084. At first glance, this galaxy is pretty unoriginal. Like the majority of galaxies that we observe it is a spiral galaxy, and, as with about half of all spirals, it has no bar running through its loosely wound arms. However, although it may seem unremarkable on paper, NGC 1084 is actually a near-perfect example of this type of galaxy— and Hubble has a near-perfect view of it. NGC 1084 has hosted several violent events known as supernovae — explosions that occur when massive stars, many times more massive than the Sun, approach their twilight years. As the fusion processes in their cores run out of fuel and come to an end, these stellar giants collapse, blowing off their outer layers in a violent explosion. Supernovae can often briefly outshine an entire galaxy, before then fading away over several weeks or months. Although directly observing one of these explosions is hard to do, in galaxies like NGC 1084 astronomerscan find and study the remnants left behind. Astronomers have noted five supernova explosions within NGC 1084 over the past half century. These remnants are named after the year in which they took place — 1963P, 1996an, 1998dl, 2009H, and 2012ec. The most recent explosion, 2012ec, was detected atthe end of NGC 1084’s top right arm in August 2012. It is not visible here as these images were taken in 2001, some eleven years before this supernova exploded. Astronomers at Queen's University Belfast have managed to use these "before" images to directly identify the star that exploded. It appears to be a red supergiant some 10 to 20 times more massive than the Sun, and quite similar to the well-known star Betelguese in Orion. A version of this image was entered into the Hubble's Hidden Treasures image processing competition by Flickr user Brian Campbell (Sinickel).
Kısa başlık	A spiral home to exploding stars
Kullanım şartları	Creative Commons Attribution 3.0 Unported license
Verinin ilk yaratılma zamanı	10.00, 31 Mart 2014
Kullanılan yazılım	Adobe Photoshop CS6 (Windows)
Özgün belgenin benzersiz kimliği	xmp.did:86F5805E1C25E311A5A4C3FD8C3E8B93
Anahtar kelimeler	NGC 1084
İletişim bilgileri	http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei M√ºnchen, , D-85748 Germany

Dosya:A spiral home to exploding stars.jpg

Özet

Lisanslama

Altyazılar

Bu dosyada gösterilen öğeler

betimlenen

telif hakkı durumu

telif hakkı alınmış

telif hakkı lisansı

Creative Commons Atıf 4.0 Uluslararası

kuruluşu

31 Mart 2014

ortam türü

image/jpeg

sağlama toplamı

d11916feadcc79a48535fb3824943016bb0d3463

dosya boyutu

2.397.245 bayt

boyu

1.953 piksel

genişliği

2.134 piksel

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