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Showing 1–11 of 11 results
Advanced filters: Author: Roland K. Vanderspek Clear advanced filters

  • Observations of a 3-million-year-old pre-main-sequence star with a misaligned disk reveal a giant orbiting planet; the system is ideal for studying the early formation and migration of planets.

    • Madyson G. Barber
    • Andrew W. Mann
    • Jesus Noel Villaseñor
    Research
    Nature
    Volume: 635, P: 574-577

  • Transiting Exoplanet Survey Satellite data of the massive star HD 192575 reveal pulsation frequencies that allow the inference of its convective core mass and interior rotation profile, thus providing a calibration point for interior chemical and angular momentum transport mechanisms.

    • Siemen Burssens
    • Dominic M. Bowman
    • George Ricker
    Research
    Nature Astronomy
    Volume: 7, P: 913-930

  • A giant planet candidate roughly the size of Jupiter but more than 14 times as massive is observed by TESS and other instruments to be transiting the white dwarf star WD 1856+534.

    • Andrew Vanderburg
    • Saul A. Rappaport
    • Liang Yu
    Research
    Nature
    Volume: 585, P: 363-367

  • Observations of TOI-849b reveal a radius smaller than Neptune’s but a large mass of about 40 Earth masses, indicating that the planet is the remnant core of a gas giant.

    • David J. Armstrong
    • Théo A. Lopez
    • Zhuchang Zhan
    Research
    Nature
    Volume: 583, P: 39-42

  • The pulsation spectra of intermediate-mass stars (so-called δ Scuti stars) have been challenging to analyse, but new observations of 60 such stars reveal remarkably regular sequences of high-frequency pulsation modes.

    • Timothy R. Bedding
    • Simon J. Murphy
    • Roland K. Vanderspek
    Research
    Nature
    Volume: 581, P: 147-151

  • The Transiting Exoplanet Survey Satellite (TESS) has identified a nearby, bright, quiescent M dwarf star that hosts two sub-Neptune-sized planets and one super-Earth-sized planet. The system is eminently suitable for follow-up studies of transit timing variations, radial velocity measurements and transmission spectroscopy.

    • Maximilian N. Günther
    • Francisco J. Pozuelos
    • Ian A. Waite
    Research
    Nature Astronomy
    Volume: 3, P: 1099-1108

  • Bright star \(\nu\) Indi shows elevated levels of alpha-process elements, suggesting great age, and is kinematically heated, probably from the merger of a dwarf galaxy with the Milky Way. Chaplin et al. make a case for \(\nu\) Indi being an accurate indicator of the timing for the Gaia–Enceladus merger.

    • William J. Chaplin
    • Aldo M. Serenelli
    • Mutlu Yıldız
    Research
    Nature Astronomy
    Volume: 4, P: 382-389

  • LTT 9779 b is Neptune-sized planet rotating around its star with a period of 0.79 days and an equilibrium temperature of 2,000 K. It is not clear how it retained its atmospheric envelope, which contains ~10% of H/He, as it should have been photoevaporated by now.

    • James S. Jenkins
    • Matías R. Díaz
    • Andrew W. Mann
    Research
    Nature Astronomy
    Volume: 4, P: 1148-1157