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Showing 1–10 of 10 results
Advanced filters: Author: Przemek Mróz Clear advanced filters

  • Long-term pre- and post-eruption observations of the classical nova V1213 Centauri reveal that its progenitor was a dwarf nova and that the mass-transfer rate increased considerably as a result of the nova explosion.

    • Przemek Mróz
    • Andrzej Udalski
    • Michał Pawlak
    Research
    Nature
    Volume: 537, P: 649-651

  • In an analysis of a large sample of microlensing events, a few suggest the existence of Earth-mass free-floating planets, but only the expected number of Jupiter-mass free-floating objects were detected.

    • Przemek Mróz
    • Andrzej Udalski
    • Michał Pawlak
    Research
    Nature
    Volume: 548, P: 183-186

  • The results of the search for long-timescale microlensing events among the light curves of nearly 80 million stars located in the Large Magellanic Cloud indicate that there are no massive black holes in the Milky Way halo.

    • Przemek Mróz
    • Andrzej Udalski
    • Milena Ratajczak
    Research
    Nature
    Volume: 632, P: 749-751

  • Machine-learning methods are used to provide a more unified picture of mathematical degeneracies in light curves of planetary microlensing events.

    • Przemek Mróz
    News & Views
    Nature Astronomy
    Volume: 6, P: 774-775

  • A previously unidentified class of variable stars has been found in OGLE survey data, characterized by periodic brightness variations on ~30-min timescales, amplitudes of ~0.3 mag and temperatures of ~30,000 K. They are potentially evolved low-mass stars.

    • Paweł Pietrukowicz
    • Wojciech A. Dziembowski
    • Krzysztof Ulaczyk
    Research
    Nature Astronomy
    Volume: 1, P: 1-7

  • A 51-minute-orbital-period, fully eclipsing binary system consisting of a star with a comparable temperature to that of the Sun but a 100 times greater density, accreting onto a white dwarf is reported.

    • Kevin B. Burdge
    • Kareem El-Badry
    • Thomas A. Prince
    Research
    Nature
    Volume: 610, P: 467-471

  • The optical follow-up and analysis of two neutron star–black hole merger candidates with the Zwicky Transient Facility did not yield viable counterparts. However, state-of-the-art kilonova models constrain the ejecta properties of these mergers.

    • Shreya Anand
    • Michael W. Coughlin
    • Azamat F. Valeev
    Research
    Nature Astronomy
    Volume: 5, P: 46-53

  • Accretion onto the surface of a white dwarf typically generates supersoft X-ray emission and broad emission lines due to nuclear fusion. ASASSN-16oh exhibits no visible broad lines, implying there is no surface fusion, and instead, a belt around the dwarf called a spreading layer is the source of the supersoft X-ray emission.

    • Thomas J. Maccarone
    • Thomas J. Nelson
    • Krzysztof Ulaczyk
    Research
    Nature Astronomy
    Volume: 3, P: 173-177