Search Results - "Ono, Yoshiaki"

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    Full-data Results of Hubble Frontier Fields: UV Luminosity Functions at z ∼ 6-10 and a Consistent Picture of Cosmic Reionization by Ishigaki, Masafumi, Kawamata, Ryota, Ouchi, Masami, Oguri, Masamune, Shimasaku, Kazuhiro, Ono, Yoshiaki

    Published in The Astrophysical journal (10-02-2018)
    “…We present UV luminosity functions of dropout galaxies at with the complete Hubble Frontier Fields data. We obtain a catalog of ∼450 dropout-galaxy candidates…”
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    Journal Article
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    A JWST/NIRSpec First Census of Broad-line AGNs at z = 4–7: Detection of 10 Faint AGNs with M BH ∼ 106–108 M ⊙ and Their Host Galaxy Properties by Harikane, Yuichi, Zhang, Yechi, Nakajima, Kimihiko, Ouchi, Masami, Isobe, Yuki, Ono, Yoshiaki, Hatano, Shun, Xu, Yi, Umeda, Hiroya

    Published in The Astrophysical journal (01-12-2023)
    “…We present the first statistical sample of faint type 1 AGNs at z > 4 identified by JWST/NIRSpec deep spectroscopy. Among the 185 galaxies at z _spec = 3.8–8.9…”
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    JWST Census for the Mass–Metallicity Star Formation Relations at z = 4–10 with Self-consistent Flux Calibration and Proper Metallicity Calibrators by Nakajima, Kimihiko, Ouchi, Masami, Isobe, Yuki, Harikane, Yuichi, Zhang, Yechi, Ono, Yoshiaki, Umeda, Hiroya, Oguri, Masamune

    “…Abstract We present the evolution of the mass–metallicity (MZ) relation at z = 4–10 derived with 135 galaxies identified in JWST/NIRSpec data taken from the…”
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    Singlet Even-Frequency and Triplet Odd-Frequency Superconductivity in the Two-Band Hubbard Model Based on the Dynamical Mean-Field Theory by Inokuma, Yusuke, Ōno, Yoshiaki

    Published in Journal of the Physical Society of Japan (15-04-2024)
    “…Superconductivity in the two-band Hubbard model characterized by the on-site Coulomb repulsion Ud at d-site and the charge-transfer energy Δ between d- and…”
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    Early Low-mass Galaxies and Star-cluster Candidates at z ∼ 6-9 Identified by the Gravitational-lensing Technique and Deep Optical/Near-infrared Imaging by Kikuchihara, Shotaro, Ouchi, Masami, Ono, Yoshiaki, Mawatari, Ken, Chevallard, Jacopo, Harikane, Yuichi, Kojima, Takashi, Oguri, Masamune, Bruzual, Gustavo, Charlot, Stéphane

    Published in The Astrophysical journal (01-04-2020)
    “…We present very faint dropout galaxies at z ∼ 6−9 with a stellar mass M down to that are found in deep optical/near-infrared (NIR) images of the full data sets…”
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    EMPRESS. VII. Ionizing Spectrum Shapes of Extremely Metal-poor Galaxies: Uncovering the Origins of Strong He ii and the Impact on Cosmic Reionization by Umeda, Hiroya, Ouchi, Masami, Nakajima, Kimihiko, Isobe, Yuki, Aoyama, Shohei, Harikane, Yuichi, Ono, Yoshiaki, Matsumoto, Akinori

    Published in The Astrophysical journal (01-05-2022)
    “…Abstract Strong high-ionization lines such as He ii of young galaxies are puzzling at high and low redshift. Although recent studies suggest the existence of…”
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    Redshift Evolution of Electron Density in the Interstellar Medium at z ∼ 0–9 Uncovered with JWST/NIRSpec Spectra and Line-spread Function Determinations by Isobe, Yuki, Ouchi, Masami, Nakajima, Kimihiko, Harikane, Yuichi, Ono, Yoshiaki, Xu, Yi, Zhang, Yechi, Umeda, Hiroya

    Published in The Astrophysical journal (01-10-2023)
    “…Abstract We present electron densities n e in the interstellar medium (ISM) of star-forming galaxies at z = 4–9 observed by the JWST/NIRSpec GLASS, Early…”
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    Lyα Emission at z = 7–13: Clear Evolution of Lyα Equivalent Width Indicating a Late Cosmic Reionization History by Nakane, Minami, Ouchi, Masami, Nakajima, Kimihiko, Harikane, Yuichi, Ono, Yoshiaki, Umeda, Hiroya, Isobe, Yuki, Zhang, Yechi, Xu, Yi

    Published in The Astrophysical journal (01-05-2024)
    “…Abstract We present the evolution of Ly α emission derived from 53 galaxies at z = 6.6–13.2, which have been identified by multiple JWST/NIRSpec spectroscopy…”
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    Evolution of N/O abundance ratios and ionization parameters from z ∼ 0 to 2 investigated by the direct temperature method by Kojima, Takashi, Ouchi, Masami, Nakajima, Kimihiko, Shibuya, Takatoshi, Harikane, Yuichi, Ono, Yoshiaki

    “…Abstract We present N/O abundance ratios, ionization parameters q ion, and oxygen abundances O/H for a total of 41 galaxies (11 individual galaxies and a…”
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    Electronic States of Al–Mg–Zn Quasicrystal and Its Approximant Based on First‐Principles Calculations by Saito, Masaki, Sekikawa, Takuya, Ōno, Yoshiaki

    Published in physica status solidi (b) (01-11-2020)
    “…First‐principles calculations are performed to investigate the electronic states of 1/1 and 2/1 approximants with the composition Al15Zn40Mg45, which is close…”
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    FOREVER22: the first bright galaxies with Population III stars at redshifts z ≃ 10–20 and comparisons with JWST data by Yajima, Hidenobu, Abe, Makito, Fukushima, Hajime, Ono, Yoshiaki, Harikane, Yuichi, Ouchi, Masami, Hashimoto, Takuya, Khochfar, Sadegh

    “…ABSTRACT We study the formation of the first galaxies in overdense regions modelled by the FORmation and EVolution of galaxies in Extremely overdense Regions…”
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    Structure, electric transport, and magneto-transport properties of metallic double-chain based Pr1−xCaxBa2Cu4O8 with low Ca substitution by Teramura, Takehiro, Matsukawa, Michiaki, Senzaki, Tatsuya, Taniguchi, Haruka, Sano, Kazuhiro, Ōno, Yoshiaki, Hagiwara, Makoto

    Published in Physica. B, Condensed matter (01-12-2022)
    “…In this study, we showed the crystal structure, electric resistivity, Seebeck and Hall coefficients, magneto-resistance, and magnetic susceptibility of…”
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