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Showing 1–6 of 6 results
Advanced filters: Author: Shude Mao Clear advanced filters

  • An Earth-mass planet is found to have a white dwarf host—the final evolutionary stage of Sun-like stars. This system suggests that terrestrial planets in Earth-like orbits may avoid being engulfed during the red-giant phases of their host stars.

    • Keming Zhang
    • Weicheng Zang
    • Sean Terry
    Research
    Nature Astronomy
    Volume: 8, P: 1575-1582

  • The observed number counts of high-redshift galaxy candidates have been used to build up a statistical description of star-forming activity at redshift of about z>7. Here it is reported that gravitational lensing is likely to dominate the observed properties of galaxies with redshifts of about z>12, when the instrumental limiting magnitude is expected to be brighter than the characteristic magnitude of the galaxy sample. The number counts could be modified by an order of magnitude. Future surveys will need to be designed to account for a significant gravitational lensing bias in high-redshift galaxy samples.

    • J. Stuart B. Wyithe
    • Haojing Yan
    • Shude Mao
    Research
    Nature
    Volume: 469, P: 181-184

  • The authors report on a temperate Earth-sized planet orbiting the cool M6 dwarf LP 791-18 with a radius of 1.03 ± 0.04 R⊕ and an equilibrium temperature of 300–400 K, with the permanent night side plausibly allowing for water condensation.

    • Merrin S. Peterson
    • Björn Benneke
    • Thomas Barclay
    Research
    Nature
    Volume: 617, P: 701-705

  • Nineteen dwarf galaxies from the ALFALFA catalogue support previous observations of dwarf galaxies that suggested a deficiency in dark matter, challenging the formation theory of low-mass galaxies within the standard cold dark matter model.

    • Qi Guo
    • Huijie Hu
    • Hong Wu
    Research
    Nature Astronomy
    Volume: 4, P: 246-251