SDSSJ0946+1006: Difference between revisions
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[[Image:SDSSJ0946+1006.jpg|thumb|right|300px|SDSSJ0946+1006 gravitational lens]] |
[[Image:SDSSJ0946+1006.jpg|thumb|right|300px|SDSSJ0946+1006 gravitational lens]] |
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'''SDSSJ0946+1006''' is an unusual [[gravitational lens]] system consisting of three [[galaxy|galaxies]] at distances of respectively three, six, and eleven billion [[light year]]s from [[Earth]]. In a report presented at the 211th meeting of the [[American Astronomical Society]], researchers [[Raphael Gavazzi]] and [[Tommaso Treu]] of the [[University of California, Santa Barbara]] described the discovery of a double [[Einstein ring]] produced by the gravitational lensing of light from two distant galaxies. The observations were made using the [[Hubble Space Telescope]]. |
'''SDSSJ0946+1006''' is an unusual [[gravitational lens]] system consisting of three [[galaxy|galaxies]] at distances of respectively three, six, and eleven billion [[light year]]s from [[Earth]]. In a report presented at the 211th meeting of the [[American Astronomical Society]], researchers [[Raphael Gavazzi]] and [[Tommaso Treu]] of the [[University of California, Santa Barbara]] described the discovery of a double [[Einstein ring]] produced by the gravitational lensing of light from two distant galaxies. The observations were made using the [[Hubble Space Telescope]]. |
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The main lens lies at [[redshift]] z=0.222 , with the inner ring at z=0.609 with an [[Einstein radius]] R<sub>E</sub>=1.43±0.01 and magnitude m=19.784±0.006 , the outer ring is at z≲6.9 with R<sub>E</sub>=2.07±0.02 and magnitude m=23.68 ± 0.09 <ref> arXiv preprint: {{PDF}} [http://arxiv.org/pdf/0801.1555v1 The Sloan Lens ACS Survey. VI: Discovery and Analysis of a Double Einstein Ring] 2-Feb-2008 </ref> The lensing galaxy is also known as [[SDSSJ0946+1006 L1]], with the nearer lensed galaxy as [[SDSSJ0946+1006 S1]], and the farther lensed galaxy [[SDSSJ0946+1006 S2]]. |
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==External links== |
==External links== |
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Revision as of 13:22, 1 June 2008
SDSSJ0946+1006 is an unusual gravitational lens system consisting of three galaxies at distances of respectively three, six, and eleven billion light years from Earth. In a report presented at the 211th meeting of the American Astronomical Society, researchers Raphael Gavazzi and Tommaso Treu of the University of California, Santa Barbara described the discovery of a double Einstein ring produced by the gravitational lensing of light from two distant galaxies. The observations were made using the Hubble Space Telescope.
The main lens lies at redshift z=0.222 , with the inner ring at z=0.609 with an Einstein radius RE=1.43±0.01 and magnitude m=19.784±0.006 , the outer ring is at z≲6.9 with RE=2.07±0.02 and magnitude m=23.68 ± 0.09 [1] The lensing galaxy is also known as SDSSJ0946+1006 L1, with the nearer lensed galaxy as SDSSJ0946+1006 S1, and the farther lensed galaxy SDSSJ0946+1006 S2.
External links
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- ^ arXiv preprint: Template:PDF The Sloan Lens ACS Survey. VI: Discovery and Analysis of a Double Einstein Ring 2-Feb-2008