Search Results - "Newton, Elisabeth R"
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1
The stellar rotation–activity relationship in fully convective M dwarfs
Published in Monthly notices of the Royal Astronomical Society (11-09-2018)Get full text
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THE ROTATION AND GALACTIC KINEMATICS OF MID M DWARFS IN THE SOLAR NEIGHBORHOOD
Published in The Astrophysical journal (20-04-2016)“…ABSTRACT Rotation is a directly observable stellar property, and it drives magnetic field generation and activity through a magnetic dynamo. Main-sequence…”
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A rocky planet transiting a nearby low-mass star
Published in Nature (London) (12-11-2015)“…A low-mass star that is just 12 parsecs away from Earth is shown to be transited by an Earth-sized planet, GJ 1132b, which probably has a rock/iron composition…”
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The Sun Remains Relatively Refractory Depleted: Elemental Abundances for 17,412 Gaia RVS Solar Analogs and 50 Planet Hosts
Published in The Astrophysical journal (01-04-2024)“…Abstract The element abundances of stars, particularly the refractory elements (e.g., Fe, Si, and Mg), play an important role in connecting stars to their…”
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Wrinkles in Time. I. Rapid Rotators Found in High-eccentricity Orbits
Published in The Astrophysical journal (01-11-2023)“…Abstract Recent space-based missions have ushered in a new era of observational astronomy, where high-cadence photometric light curves for thousands to…”
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The Variable Detection of Atmospheric Escape around the Young, Hot Neptune AU Mic b
Published in The Astronomical journal (01-08-2023)“…Photoevaporation is a potential explanation for several features within exoplanet demographics. Atmospheric escape observed in young Neptune-sized exoplanets…”
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Contemporaneous Observations of Hα Luminosities and Photometric Amplitudes for M Dwarfs
Published in The Astronomical journal (01-05-2023)“…Abstract While many M dwarfs are known to have strong magnetic fields and high levels of magnetic activity, we are still unsure about the properties of their…”
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CALIBRATION OF THE MEARTH PHOTOMETRIC SYSTEM: OPTICAL MAGNITUDES AND PHOTOMETRIC METALLICITY ESTIMATES FOR 1802 NEARBY M-DWARFS
Published in The Astrophysical journal (20-02-2016)“…ABSTRACT The MEarth Project is a photometric survey systematically searching the smallest stars near the Sun for transiting rocky planets. Since 2008, MEarth…”
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Quantifying the Transit Light Source Effect: Measurements of Spot Temperature and Coverage on the Photosphere of AU Microscopii with High-resolution Spectroscopy and Multicolor Photometry
Published in The Astrophysical journal (01-02-2024)“…Abstract AU Microscopii (AU Mic) is an active 24 ± 3 Myr pre-main-sequence M dwarf in the stellar neighborhood ( d = 9.7 pc) with a rotation period of 4.86…”
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Searching for Neutral Hydrogen Escape from the 120 Myr Old Sub-Neptune HIP94235b using HST
Published in The Astronomical journal (01-10-2024)“…Abstract HIP94235 b, a 120 Myr old sub-Neptune, provides us the unique opportunity to study mass loss at a pivotal stage of the system’s evolution: the end of…”
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A Mini-Neptune from TESS and CHEOPS Around the 120 Myr Old AB Dor Member HIP 94235
Published in The Astronomical journal (01-06-2022)“…Abstract The Transiting Exoplanet Survey Satellite (TESS) mission has enabled discoveries of the brightest transiting planet systems around young stars. These…”
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Reconstructing the Extreme Ultraviolet Emission of Cool Dwarfs Using Differential Emission Measure Polynomials
Published in The Astrophysical journal (01-05-2021)“…Abstract Characterizing the atmospheres of planets orbiting M dwarfs requires understanding the spectral energy distributions of M dwarfs over planetary…”
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Hazy with a Chance of Star Spots: Constraining the Atmosphere of Young Planet K2-33b
Published in The Astronomical journal (01-01-2023)“…Abstract Although all-sky surveys have led to the discovery of dozens of young planets, little is known about their atmospheres. Here, we present…”
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TESS Investigation—Demographics of Young Exoplanets (TI-DYE). II. A Second Giant Planet in the 17 Myr System HIP 67522
Published in Astrophysical journal. Letters (01-09-2024)“…Abstract The youngest (<50 Myr) planets are vital to understand planet formation and early evolution. The 17 Myr system HIP 67522 is already known to host a…”
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A Low-mass, Pre-main-sequence Eclipsing Binary in the 40 Myr Columba Association—Fundamental Stellar Parameters and Modeling the Effect of Star Spots
Published in The Astronomical journal (01-02-2023)“…Abstract Young eclipsing binaries (EBs) are powerful probes of early stellar evolution. Current models are unable to simultaneously reproduce the measured and…”
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THE Hα EMISSION OF NEARBY M DWARFS AND ITS RELATION TO STELLAR ROTATION
Published in The Astrophysical journal (01-01-2017)“…ABSTRACT The high-energy emission from low-mass stars is mediated by the magnetic dynamo. Although the mechanisms by which fully convective stars generate…”
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The Ca ii H and K Rotation–Activity Relation in 53 Mid-to-late-type M Dwarfs
Published in The Astrophysical journal (01-04-2022)“…Abstract In the canonical theory of stellar magnetic dynamo, the tachocline in partially convective stars serves to arrange small-scale fields, generated by…”
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A temperate rocky super-Earth transiting a nearby cool star
Published in Nature (London) (20-04-2017)“…An Earth-sized planet is observed orbiting a nearby star within the liquid-water, habitable zone, the atmospheric composition of which could be determined from…”
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Orbital Parameter Determination for Wide Stellar Binary Systems in the Age of Gaia
Published in The Astrophysical journal (01-05-2020)“…The orbits of binary stars and planets, particularly eccentricities and inclinations, encode the angular momentum within these systems. Within stellar multiple…”
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Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. I. Classifying Low-mass Host Stars Observed during Campaigns 1-7
Published in The Astrophysical journal (20-02-2017)“…We present near-infrared spectra for 144 candidate planetary systems identified during Campaigns 1-7 of the NASA K2 Mission. The goal of the survey was to…”
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