Astrofísicas: Astronomía infrarroja cercana

  • Publicación
    A Close-in Puffy Neptune with Hidden Friends: The Enigma of TOI 620

    We present the validation of a transiting low-density exoplanet orbiting the M2.5 dwarf TOI 620 discovered by the NASA Transiting Exoplanet Survey Satellite...

  • Publicación
    A Near-infrared Chemical Inventory of the Atmosphere of 55 Cancri e

    We present high-resolution near-infrared spectra taken during eight transits of 55 Cancri e, a nearby low-density super-Earth with a short orbital period (<18...

  • Publicación
    APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South

    The spectral analysis and data products in Data Release 16 (DR16; 2019 December) from the high-resolution near-infrared Apache Point Observatory Galactic...

  • Publicación
    BACCHUS Analysis of Weak Lines in APOGEE Spectra (BAWLAS)

    Elements with weak and blended spectral features in stellar spectra are challenging to measure and require specialized analysis methods to precisely measure...

  • Publicación
    Detailed Chemical Abundances for a Benchmark Sample of M Dwarfs from the APOGEE Survey

    Individual chemical abundances for 14 elements (C, O, Na, Mg, Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, and Ni) are derived for a sample of M dwarfs using high...

  • Publicación
    Detection of Carbon Monoxide's 4.6 Micron Fundamental Band Structure in WASP-39b's Atmosphere with JWST NIRSpec G395H

    Carbon monoxide (CO) is predicted to be the dominant carbon-bearing molecule in giant planet atmospheres and, along with water, is important for discerning the...

  • Publicación
    Double-lined Spectroscopic Binaries in the APOGEE DR16 and DR17 Data

    APOGEE spectra offer ≲1 km s -1 precision in the measurement of stellar radial velocities. This holds even when multiple stars are captured in the same spectrum...

  • Publicación
    Dusty Starbursts Masquerading as Ultra-high Redshift Galaxies in JWST CEERS Observations

    Lyman-break galaxy (LBG) candidates at z ≳ 10 are rapidly being identified in James Webb Space Telescope (JWST)/NIRCam observations. Due to the (redshifted)...

  • Publicación
    Exploring Magnetic Loops and Serpentine Fields in the Quiet Sun with the GRIS-IFU

    Synthetic observations produced from radiative magnetohydrodynamic simulations have predicted that higher polarization fractions in the quiet solar photosphere...