Search Results - "Teske, Johanna"
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The Star–Planet Composition Connection
Published in Annual review of astronomy and astrophysics (13-09-2024)“…The mantra “know thy star, know thy planet” has proven to be very important for many aspects of exoplanet science. Here I review how stellar abundances inform…”
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THE CURIOUS CASE OF ELEMENTAL ABUNDANCE DIFFERENCES IN THE DUAL HOT JUPITER HOSTS WASP-94A AND B
Published in The Astrophysical journal (01-03-2016)“…ABSTRACT Binary stars provide an ideal laboratory for investigating the potential effects of planet formation on stellar composition. Assuming that the stars…”
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The PFS View of TOI-677 b: A Spin–Orbit Aligned Warm Jupiter in a Dynamically Hot System
Published in The Astronomical journal (01-04-2024)“…Abstract TOI-677 b is part of an emerging class of “tidally detached” gas giants ( a / R ⋆ ≳ 11) that exhibit large orbital eccentricities and yet low stellar…”
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UNIFORM ATMOSPHERIC RETRIEVAL ANALYSIS OF ULTRACOOL DWARFS. I. CHARACTERIZING BENCHMARKS, Gl 570D AND HD 3651B
Published in The Astrophysical journal (10-07-2015)“…ABSTRACT Interpreting the spectra of brown dwarfs is key to determining the fundamental physical and chemical processes occurring in their atmospheres…”
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Identical or fraternal twins? The chemical homogeneity of wide binaries from Gaia DR2
Published in Monthly notices of the Royal Astronomical Society (01-02-2020)“…ABSTRACT One of the high-level goals of Galactic archaeology is chemical tagging of stars across the Milky Way to piece together its assembly history. For this…”
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KELT-9 and its ultra-hot Jupiter: Stellar parameters, composition, and planetary pollution
Published in Monthly notices of the Royal Astronomical Society (01-01-2023)“…ABSTRACT KELT-9b is an ultra-hot Jupiter observed to be undergoing extreme mass-loss. Its A0-type host star has a radiative envelope, which makes its surface…”
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A Revisit of the Mass–Metallicity Trends in Transiting Exoplanets
Published in The Astronomical journal (01-04-2024)“…Abstract The two prevailing planet formation scenarios, core accretion and disk instability, predict distinct planetary mass–metallicity relations. Yet, the…”
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C/O RATIOS OF STARS WITH TRANSITING HOT JUPITER EXOPLANETS
Published in The Astrophysical journal (10-06-2014)“…The relative abundances of carbon and oxygen have long been recognized as fundamental diagnostics of stellar chemical evolution. Now, the growing number of…”
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TESS Stellar Rotation up to 80 Days in the Southern Continuous Viewing Zone
Published in The Astrophysical journal (01-02-2024)“…Abstract The Transiting Exoplanet Survey Satellite (TESS) mission delivers time-series photometry for millions of stars across the sky, offering a probe into…”
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An ALMA and MagAO Study of the Substellar Companion GQ Lup B
Published in The Astrophysical journal (20-02-2017)“…Abstract Multi-wavelength observations provide a complementary view of the formation of young, directly imaged planet-mass companions. We report the ALMA 1.3…”
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Statistics of the Chemical Composition of Solar Analog Stars and Links to Planet Formation
Published in The Astrophysical journal (01-02-2021)“…The Sun has been found to be depleted in refractory (rock-forming) elements relative to nearby solar analogs, suggesting a potential indicator of planet…”
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Evidence for Low-level Dynamical Excitation in Near-resonant Exoplanet Systems
Published in The Astronomical journal (01-12-2023)“…Abstract The geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions of exoplanet systems. Given that…”
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Testing the Limits of Precise Subgiant Characterization with APOGEE and Gaia: Opening a Window to Unprecedented Astrophysical Studies
Published in The Astrophysical journal (01-07-2021)“…Abstract Given their location on the Hertzsprung-Russell (H-R) diagram, thoroughly characterized subgiant stars can place stringent constraints on a wide range…”
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Importance of Sample Selection in Exoplanet-atmosphere Population Studies
Published in The Astronomical journal (01-01-2023)“…Abstract Understanding planet formation requires robust population studies, which are designed to reveal trends in planet properties. In this work we aim to…”
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Investigating the physical properties of transiting hot Jupiters with the 1.5-m Kuiper Telescope
Published in Monthly notices of the Royal Astronomical Society (01-12-2017)“…Abstract We present new photometric data of 11 hot Jupiter transiting exoplanets (CoRoT-12b, HAT-P-5b, HAT-P-12b, HAT-P-33b, HAT-P-37b, WASP-2b, WASP-24b,…”
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Stellar Characterization of M Dwarfs from the APOGEE Survey: A Calibrator Sample for M-dwarf Metallicities
Published in The Astrophysical journal (20-02-2020)“…We present spectroscopic determinations of the effective temperatures, surface gravities, and metallicities for 21 M dwarfs observed at high resolution (R ∼…”
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Stellar Characterization and Chemical Abundances of Exoplanet-hosting M Dwarfs from APOGEE Spectra: Future JWST Targets
Published in The Astrophysical journal (01-10-2024)“…Abstract Exoplanets hosting M dwarfs are the best targets to characterize Earth-like or super-Earth planetary atmospheres with the James Webb Space Telescope…”
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Simulations for Planning Next-generation Exoplanet Radial Velocity Surveys
Published in The Astronomical journal (01-04-2023)“…Abstract Future direct imaging missions similar to the HabEx and LUVOIR mission concepts aim to catalog and characterize Earth-mass analogs around nearby…”
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Impact of Correlated Noise on the Mass Precision of Earth-analog Planets in Radial Velocity Surveys
Published in The Astronomical journal (01-03-2023)“…Abstract Characterizing the masses and orbits of near-Earth-mass planets is crucial for interpreting observations from future direct imaging missions (e.g.,…”
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CARBON AND OXYGEN ABUNDANCES IN COOL METAL-RICH EXOPLANET HOSTS: A CASE STUDY OF THE C/O RATIO OF 55 CANCRI
Published in The Astrophysical journal (01-12-2013)“…The super-Earth exoplanet 55 Cnc e, the smallest member of a five-planet system, has recently been observed to transit its host star. The radius estimates from…”
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