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Journal: The Astrophysical Journal

  • Publication
    A Population of Dust-rich Quasars at z ~ 1.5
    We report Herschel SPIRE (250, 350, and 500 μm) detections of 32 quasars with redshifts 0.5
  • Publication
    A Possible Relationship between Quasars and Clusters of Galaxies
    The distribution on the sky of clusters of galaxies shows significant association with relatively nearby, large, active galaxies. The pattern is that of...
  • Publication
    A Possible Surviving Companion of the SN Ia in the Galactic SNR G272.2-3.2
    We use the Gaia EDR3 to explore the Galactic supernova remnant (SNR) G272.2-3.2, produced by the explosion of a Type Ia supernova (SN Ia) about 7500 yr ago, to...
  • Publication
    A Precessing Collimated Outflow in the Quadrupolar Planetary Nebula NGC 6881
    We present high-quality (subarcsecond) optical narrowband CCD images of the planetary nebula NGC 6881, which reveal a highly collimated bipolar structure. A...
  • Publication
    A Precise Asteroseismic Age and Radius for the Evolved Sun-like Star KIC 11026764
    The primary science goal of the Kepler Mission is to provide a census of exoplanets in the solar neighborhood, including the identification and characterization...
  • Publication
    A Pulsational Distance to ω Centauri Based on Near-Infrared Period-Luminosity Relations of RR Lyrae Stars
    We present new near-infrared (J and K) magnitudes for 114 RR Lyrae stars in the globular cluster ω Centauri (NGC 5139), which we combine with data from the...
  • Publication
    A Radio, Optical, UV, and X-Ray View of the Enigmatic Changing-look Active Galactic Nucleus 1ES 1927+654 from Its Pre- to Postflare States
    The nearby Type II active galactic nucleus (AGN) 1ES 1927+654 went through a violent changing-look (CL) event beginning 2017 December during which the optical...
  • Publication
    A Reappraisal of the Solar Photospheric C/O Ratio
    An accurate determination of photospheric solar abundances requires detailed modeling of the solar granulation and accounting for departures from local...
  • Publication
    A Reemerging Bright Soft X-Ray State of the Changing-look Active Galactic Nucleus 1ES 1927+654: A Multiwavelength View
    1ES1927+654 is a nearby active galactic nucleus (AGN) that has shown an enigmatic outburst in optical/UV followed by X-rays, exhibiting strange variability...