Astrofísicas: Asterosismología

  • Publicación
    Galactic archaeology with asteroseismology and spectroscopy: Red giants observed by CoRoT and APOGEE
    With the advent of the space missions CoRoT and Kepler, it has recently become feasible to determine precise asteroseismic masses and relative ages for large...
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    HD 89345: a bright oscillating star hosting a transiting warm Saturn-sized planet observed by K2
    We report the discovery and characterization of HD 89345b (K2-234b; EPIC 248777106b), a Saturn-sized planet orbiting a slightly evolved star. HD 89345 is a...
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    Helio- and asteroseismology at the dawn of the millennium
    Not Available
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    High-precision acoustic helium signatures in 18 low-mass low-luminosity red giants. Analysis from more than four years of Kepler observations
    Context. High-precision frequencies of acoustic modes in red giant stars are now available thanks to the long observing length and high quality of the light...
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    Impact on asteroseismic analyses of regular gaps in Kepler data
    Context. The NASA Kepler mission has observed more than 190 000 stars in the constellations of Cygnus and Lyra. Around 4 years of almost continuous ultra high...
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    In search of gravity mode signatures in main sequence solar-type stars observed by Kepler
    Gravity modes (g modes), mixed gravito-acoustic modes (mixed modes), and gravito-inertial modes (gi modes) possess unmatched properties as probes for stars with...
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    Influence of magnetic activity on the determination of stellar parameters through asteroseismology
    Magnetic activity changes the gravito-acoustic modes of solar-like stars and in particular their frequencies. There is an angular-degree dependence that is...
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    Internal rotation and mixing in the massive star HD192575
    The evolution of high mass stars (>8M_sun) is strongly dictated by their interior structure, specifically the mixing processes near the core and in the...
  • Publicación
    Internal rotation of 13 low-mass low-luminosity red giants in the Kepler field
    Context. The Kepler space telescope has provided time series of red giants of such unprecedented quality that a detailed asteroseismic analysis becomes possible...