Concepedia

Author

Yuki Isobe

The University of TokyoORCID

Also Known As

Grogin, Norman, Hasegawa, M., Isobe, Yuki, Sedgwick, S. Molina, Y Isobe, Y. Isobe, Yugo ISOBE, Yuki ISOBE, Yuki Isobe

118

Publications

2.9K

Citations

24

H-Index

48

Concepts

All Affiliations

The University of TokyoKavli Institute for the Physics and Mathematics of the UniverseNational Astronomical Observatory of JapanThe Graduate University for Advanced Studies, SOKENDAIWaseda University
YI

About

Yuki Isobe is an author at The University of Tokyo specializing in photometry, physics, and engineering.

Top Concepts

#ConceptH-IndexPublicationsCitations

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Engineering

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Natural Sciences

4

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Medicine

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Health Sciences

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Public Health

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Yuki Isobe

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45

Publications

2.6K

Citations

22

H-Index

YearCitations

A Comprehensive Study of Galaxies at z ∼ 9–16 Found in the Early JWST Data: Ultraviolet Luminosity Functions and Cosmic Star Formation History at the Pre-reionization Epoch

Yuichi Harikane, Masami Ouchi, Masamune Oguri,

The Astrophysical Journal Supplement Series

2023

471

A JWST/NIRSpec First Census of Broad-line AGNs at z = 4–7: Detection of 10 Faint AGNs with M <sub>BH</sub> ∼ 10<sup>6</sup>–10<sup>8</sup> M <sub>⊙</sub> and Their Host Galaxy Properties

Yuichi Harikane, Yechi Zhang, Kimihiko Nakajima,

The Astrophysical Journal

2023

401

JWST Census for the Mass–Metallicity Star Formation Relations at z = 4–10 with Self-consistent Flux Calibration and Proper Metallicity Calibrators

Kimihiko Nakajima, Masami Ouchi, Yuki Isobe,

The Astrophysical Journal Supplement Series

2023

229

Pure Spectroscopic Constraints on UV Luminosity Functions and Cosmic Star Formation History from 25 Galaxies at z <sub>spec</sub> = 8.61–13.20 Confirmed with JWST/NIRSpec

Yuichi Harikane, Kimihiko Nakajima, Masami Ouchi,

The Astrophysical Journal

2023

152

Redshift Evolution of Electron Density in the Interstellar Medium at z ∼ 0–9 Uncovered with JWST/NIRSpec Spectra and Line-spread Function Determinations

Yuki Isobe, Masami Ouchi, Kimihiko Nakajima,

The Astrophysical Journal

2023

98

EMPRESS. VIII. A New Determination of Primordial He Abundance with Extremely Metal-poor Galaxies: A Suggestion of the Lepton Asymmetry and Implications for the Hubble Tension

Akinori Matsumoto, Masami Ouchi, Kimihiko Nakajima,

The Astrophysical Journal

2022

89

EMPRESS. V. Metallicity Diagnostics of Galaxies over 12 + log(O/H) ≃ 6.9–8.9 Established by a Local Galaxy Census: Preparing for JWST Spectroscopy

Kimihiko Nakajima, Masami Ouchi, Yi Xu,

The Astrophysical Journal Supplement Series

2022

86

Morphologies of Galaxies at z ≳ 9 Uncovered by JWST/NIRCam Imaging: Cosmic Size Evolution and an Identification of an Extremely Compact Bright Galaxy at z ∼ 12

Yoshiaki Ono, Yuichi Harikane, Masami Ouchi,

The Astrophysical Journal

2023

75

JWST Identification of Extremely Low C/N Galaxies with [N/O] ≳ 0.5 at z ∼ 6–10 Evidencing the Early CNO-cycle Enrichment and a Connection with Globular Cluster Formation

Yuki Isobe, Masami Ouchi, Nozomu Tominaga,

The Astrophysical Journal

2023

74

JWST Measurements of Neutral Hydrogen Fractions and Ionized Bubble Sizes at z = 7–12 Obtained with Lyα Damping Wing Absorptions in 27 Bright Continuum Galaxies

Hiroya Umeda, Masami Ouchi, Kimihiko Nakajima,

The Astrophysical Journal

2024

66

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