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several of the most massive galaxies originated in structures like this. These galaxies are believed to have formed as a result of blobs like those constituent to this structure collapsing under their own gravity. Since the densest areas in the universe are thought to be the places where galaxies formed first, this structure may be one of the earliest to have formed. This structure may reveal when and how the first galaxies formed and could help us better understand how our own galaxy came to be.
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156:. Some scientists believe that these giant bubbles formed after massive stars born in the early universe exploded as supernovae and ejected their surrounding gases. The galaxies and gas bubbles that are part of this structure line up along three curved filaments, or arms, that formed approximately 2 billion years after the
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This structure is not only incredibly large, but also very dense; the galaxies located in each of the filaments are four times closer to each other than the universe's average. Before its discovery, astronomers had predicted the existence of a structure like this one. According to computer models,
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In 2006, a multifilamentary structure measuring 200 million light-years in width was announced, coinciding with the protocluster. Discovered in 2005 by
Ryosuke Yamauchi from Tohoku University in Sendai, Japan, and his colleagues, the structure was found in a region of the universe known to contain
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Astrophysical
Journal, "A Large Structure of Galaxies at Redshift Z approximately 3 and Its Cosmological Implications", Steidel, Charles C.; Adelberger, Kurt L.; Dickinson, Mark; Giavalisco, Mauro; Pettini, Max; Kellogg, Melinda, v.492, p.428, 01/1998,
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large concentrations of gas. The structure is a very distant object; the astronomers that discovered it were actually looking at something from 12 billion years ago. This object is made up of
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Astrophysical
Journal, "Large-Scale Filamentary Structure around the Protocluster at Redshift z = 3.1", Yuichi Matsuda et al., Volume 634, Issue 2, pp. L125-L128,
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gaseous filaments. Some of the gas bubbles that make up this colossal structure are up to 400,000 light-years across, over twice the diameter of the
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The SSA-22 region; top right, scale, comparison with the size of the
Andromeda Galaxy.
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136:+00° 17′ 01″ and was originally discovered in 1998.
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160:. These filaments were observed with the help of the
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321:"Newfound Blob is Biggest Thing in the Universe"
204:Centre de données astronomiques de Strasbourg
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255:"Giant "Blob" is Largest Thing in Universe"
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76:+00° 17′ 01″
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44:EQ J221734.0+001701 (In 3D model)
144:and large gas bubbles, such as
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319:Than, Ker (27 July 2006).
168:telescopes located on the
194:"NAME SSA22 Protocluster"
132:region. It is located at
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259:National Geographic News
128:located at z=3.1 in the
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150:lyman-alpha emitters
142:lyman-break galaxies
297:2005ApJ...634L.125M
237:1998ApJ...492..428S
126:galaxy protocluster
122:EQ J221734.0+001701
27:Galaxy protocluster
18:EQ J221734.0+001701
265:on August 12, 2006
118:SSA22 Protocluster
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50:Observation data (
33:SSA22 Protocluster
253:Ravilious, Kate.
170:Mauna Kea volcano
146:lyman-alpha blobs
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16:(Redirected from
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305:astro-ph/0510762
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154:Andromeda Galaxy
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328:. Retrieved
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263:the original
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172:in Hawaii.
101:light-years
72:Declination
209:2012-04-20
180:References
134:22 17 34.0
65:22 17 37.0
325:Space.com
346:Category
330:June 23,
269:June 23,
158:Big Bang
92:Distance
82:Redshift
293:Bibcode
233:Bibcode
124:, is a
98:billion
86:z = 3.1
199:SIMBAD
162:Subaru
130:SSA 22
54:J2000)
301:arXiv
52:Epoch
332:2011
271:2011
166:Keck
164:and
148:and
116:The
285:doi
225:doi
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