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- W4386935315 abstract "Abstract The bright star λ Ser hosts a hot Neptune with a minimum mass of 13.6 M ⊕ and a 15.5 day orbit. It also appears to be a solar analog, with a mean rotation period of 25.8 days and surface differential rotation very similar to the Sun. We aim to characterize the fundamental properties of this system and constrain the evolutionary pathway that led to its present configuration. We detect solar-like oscillations in time series photometry from the Transiting Exoplanet Survey Satellite, and we derive precise asteroseismic properties from detailed modeling. We obtain new spectropolarimetric data, and we use them to reconstruct the large-scale magnetic field morphology. We reanalyze the complete time series of chromospheric activity measurements from the Mount Wilson Observatory, and we present new X-ray and ultraviolet observations from the Chandra and Hubble space telescopes. Finally, we use the updated observational constraints to assess the rotational history of the star and estimate the wind braking torque. We conclude that the remaining uncertainty on the stellar age currently prevents an unambiguous interpretation of the properties of λ Ser, and that the rate of angular momentum loss appears to be higher than for other stars with a similar Rossby number. Future asteroseismic observations may help to improve the precision of the stellar age." @default.
- W4386935315 created "2023-09-22" @default.
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- W4386935315 date "2023-09-21" @default.
- W4386935315 modified "2023-10-18" @default.
- W4386935315 title "Asteroseismology and Spectropolarimetry of the Exoplanet Host Star λ Serpentis" @default.
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- W4386935315 cites W1972226679 @default.
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- W4386935315 cites W1980931609 @default.
- W4386935315 cites W1981030602 @default.
- W4386935315 cites W1986113337 @default.
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- W4386935315 cites W2079329560 @default.
- W4386935315 cites W2082552758 @default.
- W4386935315 cites W2088219186 @default.
- W4386935315 cites W2096688555 @default.
- W4386935315 cites W2110606875 @default.
- W4386935315 cites W2132908727 @default.
- W4386935315 cites W2140907522 @default.
- W4386935315 cites W2144214856 @default.
- W4386935315 cites W2150776914 @default.
- W4386935315 cites W2154090931 @default.
- W4386935315 cites W2161791806 @default.
- W4386935315 cites W2227350766 @default.
- W4386935315 cites W2284605198 @default.
- W4386935315 cites W2482914538 @default.
- W4386935315 cites W2556341805 @default.
- W4386935315 cites W2619518566 @default.
- W4386935315 cites W2749229678 @default.
- W4386935315 cites W2768824768 @default.
- W4386935315 cites W2785082695 @default.
- W4386935315 cites W2885898897 @default.
- W4386935315 cites W2886804383 @default.
- W4386935315 cites W2916598685 @default.
- W4386935315 cites W2976530803 @default.
- W4386935315 cites W2985312979 @default.
- W4386935315 cites W3025962946 @default.
- W4386935315 cites W3083767177 @default.
- W4386935315 cites W3098203864 @default.
- W4386935315 cites W3098454759 @default.