Publication
Age of Massive Galaxies at Redshift 8
Recent James Webb Space Telescope data analyses have shown that massive red galaxies existed at redshifts z ≳ 6, a discovery that is difficult to understand in...
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PublicationAlcock-Paczyński Cosmological TestIn order to test the expansion of the universe and its geometry, we carry out an Alcock-Paczyński cosmological test, that is, an evaluation of the ratio of...
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PublicationALMA Observations of Lyα Blob 1: Halo Substructure Illuminated from WithinWe present new Atacama Large Millimeter/Submillimeter Array (ALMA) 850 μm continuum observations of the original Lyα Blob (LAB) in the SSA22 field at z = 3.1...
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PublicationALMA Observations of the Molecular Gas in the Elliptical Galaxy NGC 3557We present the results of CO interferometric observations of the southern elliptical galaxy NGC 3557 with ALMA. We have detected both the CO(1–0) emission line...
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PublicationALMA Reveals Potential Evidence for Spiral Arms, Bars, and Rings in High-redshift Submillimeter GalaxiesWe present subkiloparsec-scale mapping of the 870 μm ALMA continuum emission in six luminous (L IR ∼ 5 × 1012 L ⊙) submillimeter galaxies (SMGs) from the ALESS...
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PublicationAmbipolar Diffusion in the Lower Solar Atmosphere: Magnetohydrodynamic Simulations of a SunspotMagnetohydrodynamic (MHD) simulations of the solar atmosphere are often performed under the assumption that the plasma is fully ionized. However, in the lower...
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PublicationAn Accreting Millisecond Pulsar with Black Hole-like X-Ray Variability: IGR J00291+5934IGR J00291+5934 is one of the seven accreting millisecond pulsars (AMPs) discovered so far. We report on the aperiodic timing and color analysis of its X-ray...
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PublicationAn Effective Temperature Scale for Late-M and L Dwarfs, from Resonance Absorption Lines of Cs I and Rb IWe present Keck HIRES spectra of six late-M dwarfs and 11 L dwarfs. Our goal is to assign effective temperatures to the objects using detailed atmospheric...
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PublicationAn Elemental Assay of Very, Extremely, and Ultra-metal-poor StarsWe present a high-resolution elemental-abundance analysis for a sample of 23 very metal-poor ([Fe/H]