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  1. The Nineteenth Data Release of the Sloan Digital Sky Survey

    Publication
    Mapping the local and distant Universe is key to our understanding of it. For decades, the Sloan Digital Sky Survey (SDSS) has made a concerted effort to map …

  2. Stellar Parameters of BOSS M Dwarfs in SDSS-V DR19

    Publication
    We utilized the Stellar LAbel Machine (SLAM), a data-driven model based on Support Vector Regression, to derive stellar parameters ([Fe/H], \(T_{\rm eff}\), and …

  3. The chemical homogeneity of single-lined spectroscopic binaries in open clusters

    Publication
    Mapping the local and distant Universe is key to our understanding of it. For decades, the Sloan Digital Sky Survey (SDSS) has made a concerted effort to map …

  4. From Earths to Super-Earths: Five New Small Planets Transiting M Dwarf Stars

    Publication
    The Sloan Digital Sky Survey-V (SDSS-V) is pioneering panoptic spectroscopy: it is the first all-sky, multi-epoch, optical-to-infrared spectroscopic survey. SDSS-V is …

  5. An Analysis of the Radius Gap in a Sample of Kepler, K2, and TESS Exoplanets Orbiting M-dwarf Stars

    Publication
    Planetary radii are derived for 218 exoplanets orbiting 161 M dwarf stars. Stellar radii are based on an analysis of APOGEE high-resolution near-IR spectra for a …

  6. A Link between Rocky Planet Density and Host Star Chemistry

    Publication
    Planets and their host stars form from the same cloud of gas and dust, so we assume that their chemical compositions are linked. However, a clear correlation between …

  7. Planet Masses, Radii, and Orbits from NASA's K2 Mission

    Publication
    We report the masses, sizes, and orbital properties of 86 planets orbiting 55 stars observed by NASA's K2 Mission with follow-up Doppler measurements by the HIRES …

  8. Tidally Heated Sub-Neptunes, Refined Planetary Compositions, and Confirmation of a Third Planet in the TOI-1266 System

    Publication
    TOI-1266 is a benchmark system of two temperate ( …

  9. The TESS-Keck Survey XXIV: Outer Giants may be More Prevalent in the Presence of Inner Small Planets

    Publication
    We present the results of the Distant Giants Survey, a three-year radial velocity (RV) campaign to search for wide-separation giant planets orbiting Sun-like stars known …

  10. HIP 8522: A Puzzling Young Solar Twin with the Lowest Detected Lithium

    Publication
    We present HIP 8522, a young solar twin with the lowest detected lithium, potentially a field blue straggler or the result of episodic early accretion. Its stellar parameters …

  11. A Data-driven M Dwarf Model and Detailed Abundances for $\sim$17,000 M Dwarfs in SDSS-V

    Publication
    The cool temperatures of M dwarf atmospheres enable complex molecular chemistry, making robust characterization of M dwarf compositions a long-standing challenge. Recent modifications to spectral synthesis pipelines …

  12. Evidence of Truly Young High-\(\alpha\) Dwarf Stars

    Publication
    The existence of high-\(\alpha\) stars with inferred ages

  13. The Hottest Neptunes Orbit Metal-rich Stars

    Publication
    The Neptune desert is no longer empty. A handful of close-in planets with masses between those of Neptune and Saturn have now been discovered, and their puzzling …