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A HIGHLY MAGNIFIED SUPERNOVA AT z=1.703 BEHIND THE MASSIVE GALAXY CLUSTER A1689
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
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2011 (English)In: ASTROPHYS J LETT, ISSN 2041-8205, Vol. 742, no 1, L7- p.Article in journal (Refereed) Published
Abstract [en]

Our ability to study the most remote supernova explosions, crucial for the understanding of the evolution of the high-redshift universe and its expansion rate, is limited by the light collection capabilities of telescopes. However, nature offers unique opportunities to look beyond the range within reach of our unaided instruments thanks to the light-focusing power of massive galaxy clusters. Here we report on the discovery of one of the most distant supernovae ever found, at redshift z = 1.703. Due to a lensing magnification factor of 4.3 +/- 0.3, we are able to measure a light curve of the supernova, as well as spectroscopic features of the host galaxy with a precision comparable to what would otherwise only be possible with future generation telescopes.

Place, publisher, year, edition, pages
2011. Vol. 742, no 1, L7- p.
Keyword [en]
galaxies: clusters: individual (A1689), galaxies: distances and redshifts, gravitational lensing: weak, supernovae: general
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:su:diva-70678DOI: 10.1088/2041-8205/742/1/L7ISI: 000296763600007OAI: oai:DiVA.org:su-70678DiVA: diva2:482256
Note
authorCount :20Available from: 2012-01-23 Created: 2012-01-23 Last updated: 2012-01-23Bibliographically approved

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Amanullah, R.Goobar, ArielJönsson, JakobNordin, JakobRiehm, Teresa
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Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)Department of Astronomy
Astronomy, Astrophysics and Cosmology

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