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Open AccessTidal Dissipation in Giant Planets
Tidal interactions between moons and planets can have major effects on the orbits, spins, and thermal evolution of the moons. In the Saturn system, tidal dissipation in the planet transfers angular momentum fr...
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A close-in giant planet escapes engulfment by its star
When main-sequence stars expand into red giants, they are expected to engulf close-in planets1–5. Until now, the absence of planets with short orbital periods around post-expansion, core-helium-burning red giants
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A dense 0.1-solar-mass star in a 51-minute-orbital-period eclipsing binary
Of more than a thousand known cataclysmic variables (CVs), where a white dwarf is accreting from a hydrogen-rich star, only a dozen have orbital periods below 75 minutes1–9. One way to achieve these short periods...
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A 62-minute orbital period black widow binary in a wide hierarchical triple
Over a dozen millisecond pulsars are ablating low-mass companions in close binary systems. In the original ‘black widow’, the eight-hour orbital period eclipsing pulsar PSR J1959+2048 (PSR B1957+20)1, high-energy...
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A diffuse core in Saturn revealed by ring seismology
The best constraints on the internal structures of giant planets have historically originated from measurements of their gravity fields1–3. These data are inherently mostly sensitive to a planet’s outer regions, ...
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Resonance locking in giant planets indicated by the rapid orbital expansion of Titan
Saturn is orbited by dozens of moons, and the intricate dynamics of this complex system provide clues about its formation and evolution. Tidal friction within Saturn causes its moons to migrate outwards, drivi...
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Publisher Correction: Resonance locking in giant planets indicated by the rapid orbital expansion of Titan
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Very regular high-frequency pulsation modes in young intermediate-mass stars
Asteroseismology probes the internal structures of stars by using their natural pulsation frequencies1. It relies on identifying sequences of pulsation modes that can be compared with theoretical models, which ha...
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Article
General relativistic orbital decay in a seven-minute-orbital-period eclipsing binary system
General relativity1 predicts that short-orbital-period binaries emit considerable amounts of gravitational radiation. The upcoming Laser Interferometer Space Antenna2 (LISA) is expected to detect tens of thousand...
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A prevalence of dynamo-generated magnetic fields in the cores of intermediate-mass stars
Suppression of dipolar oscillation modes by strong magnetic fields in the cores of intermediate-mass red giant stars reveals that powerful magnetic dynamos were very common in the previously convective cores o...
