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Showing 1–6 of 6 results
Advanced filters: Author: Griffin Hosseinzadeh Clear advanced filters

  • Very early observations of a type Ia supernova—from within one hour of explosion—show a red colour that develops and rapidly disappears. These data provide information on the initial explosion mechanism: surface nuclear burning on the white dwarf or extreme mixing of the nuclear burning process.

    • Yuan Qi Ni
    • Dae-Sik Moon
    • Sheng Yang
    Research
    Nature Astronomy
    Volume: 6, P: 568-576

  • Electron-capture supernovae are thought to come from progenitors with a narrow range of masses, and thus they are rare. Here the authors present six indicators of an electron-capture supernova origin, and find that supernova 2018zd fulfils all six criteria.

    • Daichi Hiramatsu
    • D. Andrew Howell
    • Koichi Itagaki
    Research
    Nature Astronomy
    Volume: 5, P: 903-910

  • The astronomical event GW170817, detected in gravitational and electromagnetic waves, is used to determine the expansion rate of the Universe, which is consistent with and independent of existing measurements.

    • B. P. Abbott
    • R. Abbott
    • M. Serra-Ricart
    Research
    Nature
    Volume: 551, P: 85-88

  • Increased UV–optical nuclear emission in a nearby galaxy together with a spectrum showing emission lines typical of unobscured AGNs and Bowen fluorescence features suggests a longer-term event of intensified accretion onto the central supermassive black hole.

    • Benny Trakhtenbrot
    • Iair Arcavi
    • Ron Remillard
    Research
    Nature Astronomy
    Volume: 3, P: 242-250