Berkas:Galaxy cluster IDCS J1426.jpg
Ukuran asli (1.719 × 1.718 piksel, ukuran berkas: 767 KB, tipe MIME: image/jpeg)
Berkas ini berasal dari Wikimedia Commons dan mungkin digunakan oleh proyek-proyek lain. Deskripsi dari halaman deskripsinya ditunjukkan di bawah ini.
Ringkasan
DeskripsiGalaxy cluster IDCS J1426.jpg |
English: Astronomers have made the most detailed study yet of an extremely massive young galaxy cluster using three space telescopes. This multi-wavelength image shows this galaxy cluster, called IDCS J1426.5+3508 (IDCS 1426 for short), in X-rays from the NASA Chandra X-ray Observatory in blue, visible light from the NASA/ESA Hubble Space Telescope in green, and infrared light from the NASA Spitzer Space Telescope in red.
This rare galaxy cluster, which is located 10 billion light-years from Earth, weighs almost 500 trillion suns. This object has important implications for understanding how these megastructures formed and evolved early in the Universe. Astronomers have observed IDCS 1426 when the Universe was less than a third of its current age. It is the most massive galaxy cluster detected at such an early age. First discovered by the Spitzer Space Telescope in 2012, IDCS 1426 was then observed using the Hubble Space Telescope and the Keck Observatory to determine its distance. Observations from the Combined Array for Millimeter Wave Astronomy indicated it was extremely massive. New data from the Chandra X-ray Observatory confirm the galaxy cluster mass and show that about 90 percent of the mass of the cluster is in the form of dark matter, the mysterious substance that has so far been detected only through its gravitational pull on normal matter composed of atoms. There is a region of bright X-ray emission (seen as blue-white) near the middle of the cluster, but not exactly at the center. The location of this "core" of gas suggests that the cluster has had a collision or interaction with another massive system of galaxies relatively recently, perhaps within about the last 500 million years. This would cause the core to "slosh" around like wine in a moving glass and become offset as it appears to be in the Chandra data. Such a merger would not be surprising, given that astronomers are observing IDCS 1426 when the universe was only 3.8 billion years old. So that an enormous structure can form so rapidly, scientists think mergers with smaller clusters would likely play a role in a large cluster's growth. This core, while still extremely hot, contains cooler gas than its surroundings. This is the most distant galaxy cluster where such a "cool core" of gas has been observed. Astronomers think these cool cores are important in understanding how quickly hot gas cools off in clusters, influencing the rate of stars at which stars are born. This cooling rate can be slowed down by outbursts from a supermassive black hole in the centre of the cluster. Apart from the cool core, the hot gas in the cluster is remarkably symmetrical and smooth. This is another piece of evidence that IDCS 1426 formed very rapidly and quickly in the early Universe. Despite the high mass and rapid evolution of this cluster, its existence does not pose a threat to the standard model of cosmology. These results were presented at the 227th meeting of the American Astronomical Society meeting in Kissimmee, Florida. |
Tanggal | |
Sumber | http://www.spacetelescope.org/images/opo1602a/ |
Pembuat | NASA, ESA, and M. Brodwin (University of Missouri) |
Lisensi
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:
|
- Anda diizinkan:
- untuk berbagi – untuk menyalin, mendistribusikan dan memindahkan karya ini
- untuk menggubah – untuk mengadaptasi karya ini
- Berdasarkan ketentuan berikut:
- atribusi – Anda harus mencantumkan atribusi yang sesuai, memberikan pranala ke lisensi, dan memberi tahu bila ada perubahan. Anda dapat melakukannya melalui cara yang Anda inginkan, namun tidak menyatakan bahwa pemberi lisensi mendukung Anda atau penggunaan Anda.
Items portrayed in this file
menggambarkan
8 Januari 2016
Riwayat berkas
Klik pada tanggal/waktu untuk melihat berkas ini pada saat tersebut.
Tanggal/Waktu | Miniatur | Dimensi | Pengguna | Komentar | |
---|---|---|---|---|---|
terkini | 25 April 2019 18.12 | 1.719 × 1.718 (767 KB) | FriedrichKieferer | Better resolution and quality. | |
11 Januari 2016 10.23 | 1.280 × 1.279 (267 KB) | Jmencisom | User created page with UploadWizard |
Penggunaan berkas
Halaman berikut menggunakan berkas ini:
Penggunaan berkas global
Wiki lain berikut menggunakan berkas ini:
- Penggunaan pada az.wikipedia.org
- Penggunaan pada ca.wikipedia.org
- Penggunaan pada ckb.wikipedia.org
- Penggunaan pada en.wikipedia.org
- Penggunaan pada es.wikipedia.org
- Penggunaan pada gl.wikipedia.org
- Penggunaan pada it.wikipedia.org
- Penggunaan pada kn.wikipedia.org
- Penggunaan pada mk.wikipedia.org
- Penggunaan pada my.wikipedia.org
- Penggunaan pada pa.wikipedia.org
- Penggunaan pada sr.wikipedia.org
- Penggunaan pada tt.wikipedia.org
- Penggunaan pada vi.wikipedia.org
- Penggunaan pada www.wikidata.org
- Penggunaan pada xmf.wikipedia.org
- Penggunaan pada zh-yue.wikipedia.org
Metadata
Berkas ini mengandung informasi tambahan yang mungkin ditambahkan oleh kamera digital atau pemindai yang digunakan untuk membuat atau mendigitalisasi berkas. Jika berkas ini telah mengalami modifikasi, rincian yang ada mungkin tidak secara penuh merefleksikan informasi dari gambar yang sudah dimodifikasi ini.
Judul gambar |
|
---|---|
Kredit/Penyedia | NASA, ESA, and M. Brodwin (University of Missouri) |
Sumber | ESA/Hubble |
Judul singkat |
|
Ketentuan penggunaan |
|
Tanggal dan waktu pembuatan data | 8 Januari 2016 12.41 |
Perangkat lunak | Adobe Photoshop CS6 (Macintosh) |
ID unik dokumen asli | xmp.did:0380117407206811B840D829128B8A90 |
Kata kunci | IDCS J1426.5+3508 |
Informasi kontak |
Karl-Schwarzschild-Strasse 2 Garching bei München, None - D-85748, Germany |
Versi IIM | 4 |