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120:(CMB) to provide more accurate estimates of the composition of the universe. The results will also test current theories of gravity by mapping the growth of structure with redshift. Thirdly, detailed analysis of star-formation rates, environments, morphologies and luminosity functions will provide information on galaxy evolution.
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satellite and to complete the survey required some 160 clear nights of telescope time. The data enabled a three dimensional computer model of the galaxies to be calculated. The large number of observations makes it possible to study variations in the distribution of the galaxies caused by such
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of 240,000 galaxies in the
Southern sky. Redshift is the increase in the wavelength of light emitted by a galaxy caused by its speed of motion away from an observer on Earth, enabling the distance of the galaxy from Earth to be computed according to
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The work was carried out by a core team of 14 Australia-based astronomers led by Chris Blake and including Sarah Brough,
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Dayton, Leigh (20 May 2011). "After study of 240,000 galaxies, dark energy comes to light".
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The underlying purpose of the survey was to improve understanding of the phenomenon of "
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in the distribution of galaxies (“the baryon wiggles”).
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123:The WiggleZ project was succeeded by the
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89:. The redshifts were measured using the
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65:that was carried out on the 3.9 metre
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157:"WiggleZ Dark Energy Survey"
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118:Cosmic microwave background
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440:VIMOS-VLT Deep Survey
417:DEEP2 Redshift Survey
135:based on the 4 metre
131:, New Mexico and the
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570:Astronomical surveys
258:Digitized Sky Survey
244:Astronomical surveys
91:AAOmega spectrograph
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182:. Retrieved
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537:Outer space
525:Spaceflight
184:20 December
162:20 December
114:dark energy
559:Categories
143:References
139:in Chile.
501:Astronomy
290:Infra-red
464:Category
402:(CALIFA)
390:(2dFGRS)
315:(UKIDSS)
270:NGS-POSS
82:redshift
487:Portals
474:Commons
446:WiggleZ
419:(DEEP2)
396:(6dFGS)
277:(PDSSS)
266:(IPHAS)
442:(VVDS)
436:(SDSS)
429:LAMOST
425:(GAMA)
357:HIPASS
353:(GASS)
346:C-BASS
331:(WISE)
309:(IRAS)
281:SLUGGS
513:Stars
413:(DES)
339:Radio
324:VISTA
297:2MASS
260:(DSS)
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38:[
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186:2016
164:2016
57:The
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