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Showing 1–10 of 10 results
Advanced filters: Author: Adi Zitrin Clear advanced filters

  • The JWST, with the aid of gravitational lensing, confirms the extreme distance of an ultra-faint galaxy at a redshift of 9.79, showing it to have a luminosity typical of the sources responsible for cosmic reionization and highly compact and complex morphology.

    • Guido Roberts-Borsani
    • Tommaso Treu
    • Rogier A. Windhorst
    Research
    Nature
    Volume: 618, P: 480-483

  • JWST/NIRSpec observations of Abell2744-QSO1 show a high black-hole-to-host mass ratio in the early Universe, which indicates that we are seeing the black hole in a phase of rapid growth, accreting at 30% of the Eddington limit.

    • Lukas J. Furtak
    • Ivo Labbé
    • Christina C. Williams
    Research
    Nature
    Volume: 628, P: 57-61

  • An analysis of eight ultra-faint galaxies during the epoch of reionization with absolute magnitudes between −17 mag and −15  mag shows that most of the photons that reionized the Universe come from dwarf galaxies.

    • Hakim Atek
    • Ivo Labbé
    • Katherine E. Whitaker
    Research
    Nature
    Volume: 626, P: 975-978

  • Gravitationally magnified images of a faint galaxy from only 500 million years after the Big Bang suggest that galaxies of that age may be the dominant source of the radiation responsible for the re-ionization of the intergalactic medium.

    • Wei Zheng
    • Marc Postman
    • Arjen van der Wel
    Research
    Nature
    Volume: 489, P: 406-408

  • An individual star at z = 1.49 is gravitationally lensed and highly magnified by a foreground galaxy cluster. Fluctuations in the star’s emission provide insight on the mass function of intracluster stars, compact objects and the presence of dark-matter subhaloes.

    • Patrick L. Kelly
    • Jose M. Diego
    • Benjamin J. Weiner
    Research
    Nature Astronomy
    Volume: 2, P: 334-342

  • A massive star at a redshift of 6.2, corresponding to 900 million years after the Big Bang, is magnified greatly by lensing of the foreground galaxy cluster WH0137–08.

    • Brian Welch
    • Dan Coe
    • Tom Broadhurst
    Research
    Nature
    Volume: 603, P: 815-818