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List of works by Hans Kjeldsen

A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system ⬇️

scientific article published in Astronomical Journal

A 20 Second Cadence View of Solar-type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Recharacterization of π Men c

scientific article

A Multisite Campaign to Measure Solar‐like Oscillations in Procyon. I. Observations, Data Reduction, and Slow Variations ⬇️

scientific article published in the Astrophysical Journal

A giant impact as the likely origin of different twins in the Kepler-107 exoplanet system

scientific article published in January 2019

A multi-site campaign to measure solar-like oscillations in procyon. II. Mode frequencies ⬇️

scientific article published in the Astrophysical Journal

A sub-Mercury-sized exoplanet

scientific article

Age dating of an early Milky Way merger via asteroseismology of the naked-eye star ν Indi

scientific article published on 13 January 2020

Amplitudes of solar-like oscillations: constraints from red giants in open clusters observed by Kepler ⬇️

scholarly article

An asteroseismic membership study of the red giants in three open clusters observed by Kepler: NGC 6791, NGC 6819, and NGC 6811 ⬇️

scientific article published in the Astrophysical Journal

Asteroseismology of the open clusters NGC 6791, NGC 6811, and NGC 6819 from 19 months of Kepler photometry ⬇️

scientific article published in the Astrophysical Journal

Characteristics of Kepler planetary candidates based on the first data set ⬇️

scientific article published in the Astrophysical Journal

Characteristics of planetary candidates observed by Kepler. II. Analysis of the first four months of data ⬇️

scientific article published in January 2011

ELT-HIRES, the high resolution spectrograph for the ELT: results from the Phase A study

scientific article published on 6 July 2018

Erratum: A sub-Mercury-sized exoplanet

scientific article published in Nature

Evidence for Solar-like Oscillations in β Hydri ⬇️

scientific article published in the Astrophysical Journal

Fast core rotation in red-giant stars as revealed by gravity-dominated mixed modes

scientific article (publication date: 7 December 2011)

Fundamental properties of Kepler planet-candidate host stars using asteroseismology ⬇️

scientific article published in the Astrophysical Journal

Gravity modes as a way to distinguish between hydrogen- and helium-burning red giant stars

scientific article (publication date: 31 March 2011)

KEPLER 'S FIRST ROCKY PLANET: KEPLER-10b ⬇️

scientific article (publication date: 7 February 2011)

KEPLER-21b: A 1.6R Earth PLANET TRANSITING THE BRIGHT OSCILLATING F SUBGIANT STAR HD 179070 ⬇️

scientific article published in the Astrophysical Journal

KEPLER-6b: A TRANSITING HOT JUPITER ORBITING A METAL-RICH STAR ⬇️

article

KEPLER: Search for Earth-Size Planets in the Habitable Zone

article

Kepler mission design, realized photometric performance, and early science ⬇️

Kepler planet-detection mission: introduction and first results

scientific article

Kepler-22b: A 2.4 EARTH-RADIUS PLANET IN THE HABITABLE ZONE OF A SUN-LIKE STAR ⬇️

scientific article published in the Astrophysical Journal

Kepler-36: a pair of planets with neighboring orbits and dissimilar densities

scientific article

Kepler-62: a five-planet system with planets of 1.4 and 1.6 Earth radii in the habitable zone

scientific article

Kepler-68: three planets, one with a density between that of earth and ice giants ⬇️

scientific article published in the Astrophysical Journal

Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets ⬇️

article

Oscillation Frequencies and Mode Lifetimes in α Centauri A ⬇️

scientific article published in the Astrophysical Journal

Planet occurrence within 0.25 AU of solar-type stars from Kepler

article

Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog with Measured Completeness and Reliability Based on Data Release 25

article

Planetary candidates observed by Kepler. III. Analysis of the first 16 months of data

article

Solar‐like Oscillations in the G2 Subgiant β Hydri from Dual‐Site Observations ⬇️

scientific article published in the Astrophysical Journal

Solar‐like Oscillations in the Metal‐poor Subgiant ν Indi: Constraining the Mass and Age Using Asteroseismology ⬇️

scientific article published in the Astrophysical Journal

Solar‐like Oscillations in α Centauri B ⬇️

scientific article published in the Astrophysical Journal

Sounding open clusters: asteroseismic constraints from Kepler on the properties of NGC 6791 and NGC 6819 ⬇️

article

Stellar spin-orbit misalignment in a multiplanet system

scientific article

TESS Asteroseismology of the Known Red-giant Host Stars HD 212771 and HD 203949

scientific article published on 29 October 2019

The Amplitude of Solar Oscillations Using Stellar Techniques ⬇️

scientific article published in the Astrophysical Journal

The Asteroseismic Target List for Solar-like Oscillators Observed in 2 minute Cadence with the Transiting Exoplanet Survey Satellite

scientific article

The Kepler-454 system: a small, not-rocky inner planet, a jovian world, and a distant companion ⬇️

scientific article

The Occurrence of Rocky Habitable-zone Planets around Solar-like Stars from Kepler Data

scientific article published on 22 December 2020

Transit timing observations from Kepler. V. Transit timing variation candidates in the first sixteen months from polynomial models ⬇️

scientific article published in the Astrophysical Journal

Transit timing observations from Kepler. VI. Potentially interesting candidate systems from fourier-based statistical tests ⬇️

scientific article published in the Astrophysical Journal

Transiting Exoplanet Survey Satellite ⬇️

article

Transiting Exoplanet Survey Satellite (TESS)

article

Ultra-High-Precision Velocity Measurements of Oscillations in Centauri A ⬇️

scientific article published in the Astrophysical Journal

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