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Showing 1–4 of 4 results
Advanced filters: Author: V. Kokorev Clear advanced filters

  • An unusual ultraviolet compact object associated with a dusty starburst has been observed at a redshift of about 7.2, with a luminosity that falls between that of quasars and galaxies, possibly in transition between the two. 

    • S. Fujimoto
    • G. B. Brammer
    • P. A. Oesch
    Research
    Nature
    Volume: 604, P: 261-265

  • A strongly lensed galaxy at redshift z ≈ 6 is resolved into at least 15 star-forming clumps embedded in a rotating disk. Clump formation in this system, which is not predicted by cosmological zoom-in simulations, may be driven by disk instabilities with weak feedback, rather than past mergers.

    • S. Fujimoto
    • M. Ouchi
    • H. Yajima
    Research
    Nature Astronomy
    Volume: 9, P: 1553-1567

  • 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