Search Results - "Stello, D"
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Confirming chemical clocks: asteroseismic age dissection of the Milky Way disc(s)
Published in Monthly notices of the Royal Astronomical Society (01-04-2018)“…Abstract Investigations of the origin and evolution of the Milky Way disc have long relied on chemical and kinematic identifications of its components to…”
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STRUCTURAL GLITCHES NEAR THE CORES OF RED GIANTS REVEALED BY OSCILLATIONS IN G-MODE PERIOD SPACINGS FROM STELLAR MODELS
Published in The Astrophysical journal (01-06-2015)“…ABSTRACT With recent advances in asteroseismology it is now possible to peer into the cores of red giants, potentially providing a way to study processes such…”
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Ages and fundamental properties of Kepler exoplanet host stars from asteroseismology
Published in Monthly notices of the Royal Astronomical Society (11-09-2015)“…We present a study of 33 Kepler planet-candidate host stars for which asteroseismic observations have sufficiently high signal-to-noise ratio to allow…”
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Measuring the vertical age structure of the Galactic disc using asteroseismology and SAGA
Published in Monthly notices of the Royal Astronomical Society (01-01-2016)“…The existence of a vertical age gradient in the Milky Way disc has been indirectly known for long. Here, we measure it directly for the first time with seismic…”
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The GALAH survey: scientific motivation
Published in Monthly notices of the Royal Astronomical Society (21-05-2015)“…The Galactic Archaeology with HERMES (GALAH) survey is a large high-resolution spectroscopic survey using the newly commissioned High Efficiency and Resolution…”
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Asteroseismic inference on rotation, gyrochronology and planetary system dynamics of 16 Cygni
Published in Monthly notices of the Royal Astronomical Society (21-01-2015)“…The solar analogues 16 Cyg A and B are excellent asteroseismic targets in the Kepler field of view and together with a red dwarf and a Jovian planet form an…”
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Analytical modelling of period spacings across the HR diagram
Published in Monthly notices of the Royal Astronomical Society (21-11-2019)“…ABSTRACT The characterization of stellar cores may be accomplished through the modelling of asteroseismic data from stars exhibiting either gravity-mode or…”
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A Bayesian approach to scaling relations for amplitudes of solar-like oscillations in Kepler stars
Published in Monthly notices of the Royal Astronomical Society (11-04-2013)“…We investigate different amplitude scaling relations adopted for the asteroseismology of stars that show solar-like oscillations. Amplitudes are among the most…”
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PROBING THE DEEP END OF THE MILKY WAY WITH KEPLER: ASTEROSEISMIC ANALYSIS OF 854 FAINT RED GIANTS MISCLASSIFIED AS COOL DWARFS
Published in The Astrophysical journal (10-08-2016)“…ABSTRACT Asteroseismology has proven to be an excellent tool to determine not only global stellar properties with good precision, but also to infer the stellar…”
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The GALAH survey: observational overview and Gaia DR1 companion
Published in Monthly notices of the Royal Astronomical Society (01-03-2017)“…The Galactic Archaeology with HERMES (GALAH) survey is a massive observational project to trace the Milky Way's history of star formation, chemical enrichment,…”
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Oscillation frequencies for 35 Kepler solar-type planet-hosting stars using Bayesian techniques and machine learning
Published in Monthly notices of the Royal Astronomical Society (21-02-2016)“…Kepler has revolutionized our understanding of both exoplanets and their host stars. Asteroseismology is a valuable tool in the characterization of stars and…”
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The GALAH survey: tracing the Galactic disc with open clusters
Published in Monthly notices of the Royal Astronomical Society (01-05-2021)“…ABSTRACT Open clusters are unique tracers of the history of our own Galaxy’s disc. According to our membership analysis based on Gaia astrometry, out of the…”
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Kepler Detected Gravity-Mode Period Spacings in a Red Giant Star
Published in Science (American Association for the Advancement of Science) (08-04-2011)“…Stellar interiors are inaccessible through direct observations. For this reason, helioseismologists made use of the Sun's acoustic oscillation modes to tune…”
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STRÖMGREN SURVEY FOR ASTEROSEISMOLOGY AND GALACTIC ARCHAEOLOGY: LET THE SAGA BEGIN
Published in The Astrophysical journal (01-06-2014)“…Asteroseismology has the capability of precisely determining stellar properties that would otherwise be inaccessible, such as radii, masses, and thus ages of…”
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Asteroseismology of old open clusters with Kepler: direct estimate of the integrated red giant branch mass-loss in NGC 6791 and 6819
Published in Monthly notices of the Royal Astronomical Society (01-01-2012)“…Mass-loss of red giant branch (RGB) stars is still poorly determined, despite its crucial role in the chemical enrichment of galaxies. Thanks to the recent…”
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Surface correction of main-sequence solar-like oscillators with the Kepler LEGACY sample
Published in Monthly notices of the Royal Astronomical Society (01-10-2018)Get full text
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Characterization of red giant stars in the public Kepler data
Published in Monthly notices of the Royal Astronomical Society (01-07-2011)“…The first public release of long-cadence stellar photometric data collected by the NASA Kepler mission has now been made available. In this paper, we…”
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ASTEROSEISMIC DETERMINATION OF OBLIQUITIES OF THE EXOPLANET SYSTEMS KEPLER-50 AND KEPLER-65
Published in The Astrophysical journal (01-04-2013)“…Results on the obliquity of exoplanet host stars-the angle between the stellar spin axis and the planetary orbital axis-provide important diagnostic…”
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TESTING SCALING RELATIONS FOR SOLAR-LIKE OSCILLATIONS FROM THE MAIN SEQUENCE TO RED GIANTS USING KEPLER DATA
Published in The Astrophysical journal (20-12-2011)“…We have analyzed solar-like oscillations in ~1700 stars observed by the Kepler Mission, spanning from the main sequence to the red clump. Using evolutionary…”
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Oscillating K Giants with the WIRE Satellite: Determination of Their Asteroseismic Masses
Published in The Astrophysical journal (10-02-2008)“…Mass estimates of K giants are generally very uncertain. Traditionally, stellar masses of single field stars are determined by comparing their location in the…”
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