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A highly magnified ...
A highly magnified star at redshift 6.2
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- Welch, Brian (författare)
- Johns Hopkins Univ, Ctr Astrophys Sci, Dept Phys & Astron, Baltimore, MD 21218 USA.
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- Coe, Dan (författare)
- Johns Hopkins Univ, Ctr Astrophys Sci, Dept Phys & Astron, Baltimore, MD 21218 USA.;Space Telescope Sci Inst STScI, Baltimore, MD USA.;Assoc Univ Res Astron Aura European Space Agcy ES, STScI, Baltimore, MD USA.
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- Diego, Jose M. (författare)
- Inst Fis Cantabria CSIC UC, Santander, Spain.
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- Zitrin, Adi (författare)
- Ben Gurion Univ Negev, Phys Dept, Beer Sheva, Israel.
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- Zackrisson, Erik (författare)
- Uppsala universitet,Observationell astrofysik
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- Dimauro, Paola (författare)
- Minist Ciencia, Tecnol, Inovacaoe Comunicacoes, Observ Nacl, Rio De Janeiro, Brazil.
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- Jimenez-Teja, Yolanda (författare)
- Inst Astrofis Andalucia, Granada, Spain.
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- Kelly, Patrick (författare)
- Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
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- Mahler, Guillaume (författare)
- Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.;Univ Durham, Inst Computat Cosmol, Durham, England.;Univ Durham, Ctr Extragalact Astron, Durham, England.
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- Oguri, Masamune (författare)
- Univ Tokyo, Res Ctr Early Universe, Tokyo, Japan.;Chiba Univ, Ctr Frontier Sci, Chiba, Japan.;Univ Tokyo, Kavli Inst Phys & Math Universe Kavli IPMU, WPI, Chiba, Japan.
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- Timmes, F. X. (författare)
- Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ USA.;Joint Inst Nucl Astrophys Ctr Evolut Elements, Tempe, AZ USA.
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- Windhorst, Rogier (författare)
- Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ USA.
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- Florian, Michael (författare)
- Univ Arizona, Steward Observ, Dept Astron, Tucson, AZ USA.
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- de Mink, S. E. (författare)
- Max Planck Inst Astrophys, Garching, Germany.;Univ Amsterdam, Anton Pannekoek Inst Astron, GRAPPA, Amsterdam, Netherlands.;Harvard & Smithsonian, Ctr Astrophys, Cambridge, MA USA.
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- Avila, Roberto J. (författare)
- Space Telescope Sci Inst STScI, Baltimore, MD USA.
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- Anderson, Jay (författare)
- Space Telescope Sci Inst STScI, Baltimore, MD USA.
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- Bradley, Larry (författare)
- Space Telescope Sci Inst STScI, Baltimore, MD USA.
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- Sharon, Keren (författare)
- Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.
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- Vikaeus, Anton (författare)
- Uppsala universitet,Observationell astrofysik
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- McCandliss, Stephan (författare)
- Johns Hopkins Univ, Ctr Astrophys Sci, Dept Phys & Astron, Baltimore, MD 21218 USA.
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- Bradac, Marusa (författare)
- Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
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- Rigby, Jane (författare)
- NASA, Observat Cosmol Lab, Goddard Space Flight Ctr, Greenbelt, MD USA.
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- Frye, Brenda (författare)
- Univ Arizona, Steward Observ, Dept Astron, Tucson, AZ USA.
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- Toft, Sune (författare)
- Cosm Dawn Ctr DAWN, Copenhagen, Denmark.;Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
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- Strait, Victoria (författare)
- Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.;Cosm Dawn Ctr DAWN, Copenhagen, Denmark.;Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
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- Trenti, Michele (författare)
- Univ Melbourne, Sch Phys, Parkville, Vic, Australia.;Univ Melbourne, ARC Ctr Excellence All Sky Astrophys 3 Dimens, Parkville, Vic, Australia.
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- Sharma, Soniya (författare)
- NASA, Observat Cosmol Lab, Goddard Space Flight Ctr, Greenbelt, MD USA.
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- Andrade-Santos, Felipe (författare)
- Harvard & Smithsonian, Ctr Astrophys, Cambridge, MA USA.;Dexter Southfield, Clay Ctr Observ, Brookline, MA USA.
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- Broadhurst, Tom (författare)
- Univ Basque Country UPV EHU, Dept Theoret Phys, Bilbao, Spain.;Donostia Int Phys Ctr DIPC, Donostia San Sebastian, Spain.;Basque Fdn Sci, IKERBASQUE, Bilbao, Spain.
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Johns Hopkins Univ, Ctr Astrophys Sci, Dept Phys & Astron, Baltimore, MD 21218 USA Johns Hopkins Univ, Ctr Astrophys Sci, Dept Phys & Astron, Baltimore, MD 21218 USA.;Space Telescope Sci Inst STScI, Baltimore, MD USA.;Assoc Univ Res Astron Aura European Space Agcy ES, STScI, Baltimore, MD USA. (creator_code:org_t)
- 2022-03-30
- 2022
- Engelska.
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Ingår i: Nature. - : Springer Nature. - 0028-0836 .- 1476-4687. ; 603:7903, s. 815-818
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Galaxy clusters magnify background objects through strong gravitational lensing. Typical magnifications for lensed galaxies are factors of a few but can also be as high as tens or hundreds, stretching galaxies into giant arcs(1,2). Individual stars can attain even higher magnifications given fortuitous alignment with the lensing cluster. Recently, several individual stars at redshifts between approximately 1 and 1.5 have been discovered, magnified by factors of thousands, temporarily boosted by microlensing(3-6). Here we report observations of a more distant and persistent magnified star at a redshift of 6.2 +/- 0.1, 900 million years after the Big Bang. This star is magnified by a factor of thousands by the foreground galaxy cluster lens WHL0137-08 (redshift 0.566), as estimated by four independent lens models. Unlike previous lensed stars, the magnification and observed brightness (AB magnitude, 27.2) have remained roughly constant over 3.5 years of imaging and follow-up. The delensed absolute UV magnitude, -10 +/- 2, is consistent with a star of mass greater than 50 times the mass of the Sun. Confirmation and spectral classification are forthcoming from approved observations with the James Webb Space Telescope.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
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Welch, Brian
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Coe, Dan
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Diego, Jose M.
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Zitrin, Adi
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Zackrisson, Erik
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Dimauro, Paola
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Jimenez-Teja, Yo ...
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Kelly, Patrick
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Mahler, Guillaum ...
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Oguri, Masamune
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Timmes, F. X.
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Windhorst, Rogie ...
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Florian, Michael
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de Mink, S. E.
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Avila, Roberto J ...
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Anderson, Jay
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Bradley, Larry
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Sharon, Keren
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Vikaeus, Anton
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McCandliss, Step ...
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Bradac, Marusa
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Rigby, Jane
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Frye, Brenda
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Toft, Sune
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Strait, Victoria
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Trenti, Michele
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Sharma, Soniya
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Andrade-Santos, ...
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Broadhurst, Tom
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