Berkas:Arrested Development Hubble Finds Relic Galaxy Close to Home (27223177158).png

Ukuran asli(1.000 × 785 piksel, ukuran berkas: 1,22 MB, tipe MIME: image/png)

Berkas ini berasal dari Wikimedia Commons dan mungkin digunakan oleh proyek-proyek lain. Deskripsi dari halaman deskripsinya ditunjukkan di bawah ini.

Ringkasan

Deskripsi

The adventuring cinema archeologist Indiana Jones would be delighted to find a long-sought relic in his own backyard. Astronomers have gotten lucky enough to achieve such a quest. They identified a very rare and odd assemblage of stars that has remained essentially unchanged for the past 10 billion years. The diffuse stellar island provides valuable new insights into the origin and evolution of galaxies billions of years ago.

As far as galaxy evolution goes, this object is clearly a case of “arrested development.” The galaxy, NGC 1277, started its life with a bang long ago, ferociously churning out stars 1,000 times faster than seen in our own Milky Way today. But it abruptly went quiescent as the baby boomer stars aged and grew ever redder. Though Hubble has seen such “red and dead” galaxies in the early universe, one has never been conclusively found nearby. Where the early galaxies are so distant, they are just red dots in Hubble deep-sky images. NGC 1277 offers a unique opportunity to see one up close and personal.

The telltale sign of the galaxy’s state lies in the ancient globular clusters that swarm around it. Massive galaxies tend to have both metal-poor (appearing blue) and metal-rich (appearing red) globular clusters. The red clusters are believed to form as the galaxy forms, while the blue clusters are later brought in as smaller satellites are swallowed by the central galaxy. However, NGC 1277 is almost entirely lacking in blue globular clusters. The red clusters are the strongest evidence that the galaxy went out of the star-making business long ago. However, the lack of blue clusters suggests that NGC 1277 never grew further by gobbling up surrounding galaxies.
Tanggal
Sumber Arrested Development: Hubble Finds Relic Galaxy Close to Home
Pembuat NASA Hubble Space Telescope

Lisensi

w:id:Creative Commons
atribusi
Berkas ini dilisensikan di bawah lisensi Creative Commons Atribusi 2.0 Generik
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.
This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/27223177158 (archive). It was reviewed on 13 Juli 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

13 Juli 2018

Public domain Berkas ini berada dalam domain publik di Amerika Serikat karena semata-mata diciptakan oleh NASA. Kebijakan hak cipta NASA menyatakan bahwa "materi NASA tidak dilindungi oleh hak cipta kecuali dicatat". (Lihat Template:PD-USGov, Halaman kebijakan hak cipta NASA atau JPL Image Use Policy.)
Peringatan:

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

menggambarkan

12 Maret 2018

image/png

checksum Inggris

d5a665a3490c0e616b7822f01ca2dc37c64d6432

1.275.708 Bita

785 piksel

1.000 piksel

Riwayat berkas

Klik pada tanggal/waktu untuk melihat berkas ini pada saat tersebut.

Tanggal/WaktuMiniaturDimensiPenggunaKomentar
terkini13 Juli 2018 15.31Miniatur versi sejak 13 Juli 2018 15.311.000 × 785 (1,22 MB)Hiàn (alt)Transferred from Flickr via #flickr2commons

Halaman berikut menggunakan berkas ini:

Metadata