Yuki Isobe

3.0k total citations · 4 hit papers
47 papers, 1.3k citations indexed

About

Yuki Isobe is a scholar working on Astronomy and Astrophysics, Instrumentation and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, Yuki Isobe has authored 47 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Astronomy and Astrophysics, 12 papers in Instrumentation and 8 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in Yuki Isobe's work include Galaxies: Formation, Evolution, Phenomena (25 papers), Stellar, planetary, and galactic studies (13 papers) and Astronomy and Astrophysical Research (12 papers). Yuki Isobe is often cited by papers focused on Galaxies: Formation, Evolution, Phenomena (25 papers), Stellar, planetary, and galactic studies (13 papers) and Astronomy and Astrophysical Research (12 papers). Yuki Isobe collaborates with scholars based in Japan, United Kingdom and United States. Yuki Isobe's co-authors include Kimihiko Nakajima, Masami Ouchi, Yuichi Harikane, Yoshiaki Ono, Hiroya Umeda, Yechi Zhang, Yi Xu, Masamune Oguri, Ken Mawatari and Hidenobu Yajima and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and The Astrophysical Journal.

In The Last Decade

Yuki Isobe

41 papers receiving 985 citations

Hit Papers

A Comprehensive Study of Galaxies at z ∼ 9–16 Found in th... 2023 2026 2024 2025 2023 2023 2023 2023 50 100 150 200 250
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. 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
    2023 292 citations Yuichi Harikane, Masami Ouchi et al. The Astrophysical Journal Supplement Series profile →
  2. 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
    2023 230 citations Yuichi Harikane, Yechi Zhang et al. The Astrophysical Journal profile →
  3. JWST Census for the Mass–Metallicity Star Formation Relations at z = 4–10 with Self-consistent Flux Calibration and Proper Metallicity Calibrators
    2023 111 citations Kimihiko Nakajima, Masami Ouchi et al. The Astrophysical Journal Supplement Series profile →
  4. Pure Spectroscopic Constraints on UV Luminosity Functions and Cosmic Star Formation History from 25 Galaxies at z spec = 8.61–13.20 Confirmed with JWST/NIRSpec
    2023 89 citations Yuichi Harikane, Kimihiko Nakajima et al. The Astrophysical Journal profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Yuki Isobe Japan 16 982 424 150 61 58 47 1.3k
Xingang Chen United States 27 3.0k 3.0× 66 0.2× 2.1k 14.1× 13 0.2× 18 0.3× 67 3.2k
Hiroyuki Maehara Japan 18 1.1k 1.1× 174 0.4× 62 0.4× 10 0.2× 5 0.1× 76 1.2k
A. Rossi France 20 813 0.8× 52 0.1× 273 1.8× 11 0.2× 77 1.3× 121 1.3k
J. A. Braatz United States 17 955 1.0× 132 0.3× 373 2.5× 9 0.1× 20 0.3× 44 1.1k
J. Madej Poland 15 592 0.6× 118 0.3× 50 0.3× 5 0.1× 26 0.4× 69 761
R. S. Cohen United States 17 1.2k 1.2× 74 0.2× 228 1.5× 14 0.2× 9 0.2× 39 1.5k
Hongyan Zhou China 26 2.1k 2.1× 296 0.7× 664 4.4× 2 0.0× 11 0.2× 112 2.4k
Zhi-Qiang Shen China 21 1.4k 1.5× 53 0.1× 645 4.3× 7 0.1× 4 0.1× 177 1.6k
S. D. Friedman United States 26 1.8k 1.8× 110 0.3× 260 1.7× 2 0.0× 2 0.0× 76 2.1k
C. S. Anderson United States 16 581 0.6× 72 0.2× 334 2.2× 15 0.2× 2 0.0× 43 686

Countries citing papers authored by Yuki Isobe

Since Specialization
Citations

This map shows the geographic impact of Yuki Isobe's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Yuki Isobe with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Yuki Isobe more than expected).

Fields of papers citing papers by Yuki Isobe

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Yuki Isobe. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Yuki Isobe. The network helps show where Yuki Isobe may publish in the future.

Co-authorship network of co-authors of Yuki Isobe

This figure shows the co-authorship network connecting the top 25 collaborators of Yuki Isobe. A scholar is included among the top collaborators of Yuki Isobe based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Yuki Isobe. Yuki Isobe is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ouchi, Masami, Kimihiko Nakajima, Yoshiaki Ono, et al.. (2025). Fe Abundances of Early Galaxies at z = 9–12 Derived with Deep JWST Spectra. The Astrophysical Journal. 994(1). 65–65. 2 indexed citations
2.
Xu, Yi, Masami Ouchi, Kimihiko Nakajima, et al.. (2025). Stellar- and AGN-driven Outflows in JWST Galaxies at z = 3–9: More Frequent, Wider Opening Angles, and Mostly Bounded. The Astrophysical Journal. 984(2). 182–182. 5 indexed citations
3.
Isobe, Yuki, R. Maiolino, Francesco D’Eugenio, et al.. (2025). JADES: nitrogen enhancement in high-redshift broad-line active galactic nuclei. Monthly Notices of the Royal Astronomical Society Letters. 541(1). L71–L79. 6 indexed citations
4.
Nagamine, Kentaro, et al.. (2025). Probing Chemical Enrichment in Extremely Metal-poor Galaxies. The Astrophysical Journal. 988(1). 46–46.
5.
Zhang, Yechi, Masami Ouchi, Kimihiko Nakajima, et al.. (2024). Statistics for Galaxy Outflows at z ∼ 6–9 with Imaging and Spectroscopic Signatures Identified with JWST/NIRCam and NIRSpec Data. The Astrophysical Journal. 970(1). 19–19. 9 indexed citations
6.
Ouchi, Masami, Kimihiko Nakajima, Yuichi Harikane, et al.. (2024). Low [O/Fe] Ratio in a Luminous Galaxy at the Early Cosmic Epoch (z > 10): Signature of Short Delay Time or Bright Hypernovae/Pair-instability Supernovae?. The Astrophysical Journal. 976(1). 122–122. 3 indexed citations
7.
Xu, Yi, Masami Ouchi, Hidenobu Yajima, et al.. (2024). Dynamics of a Galaxy at z > 10 Explored by JWST Integral Field Spectroscopy: Hints of Rotating Disk Suggesting Weak Feedback. The Astrophysical Journal. 976(1). 142–142. 7 indexed citations
8.
Ouchi, Masami, Kimihiko Nakajima, Yuki Isobe, et al.. (2024). EMPRESS. XIII. Chemical Enrichment of Young Galaxies Near and Far at z ∼ 0 and 4–10: Fe/O, Ar/O, S/O, and N/O Measurements with a Comparison of Chemical Evolution Models. The Astrophysical Journal. 962(1). 50–50. 26 indexed citations
9.
Ouchi, Masami, Kimihiko Nakajima, Hidenobu Yajima, et al.. (2024). Strong He i Emission Lines in High N/O Galaxies at z ∼ 6 Identified in JWST Spectra: High He/H Abundance Ratios or High Electron Densities?. The Astrophysical Journal. 974(2). 266–266. 7 indexed citations
10.
Ouchi, Masami, Kimihiko Nakajima, Yuichi Harikane, et al.. (2024). Lyα Emission at z = 7–13: Clear Evolution of Lyα Equivalent Width Indicating a Late Cosmic Reionization History. The Astrophysical Journal. 967(1). 28–28. 35 indexed citations
11.
Ono, Yoshiaki, Yuichi Harikane, Masami Ouchi, et al.. (2024). Census for the rest-frame optical and UV morphologies of galaxies at z = 4–10: First phase of inside-out galaxy formation. Publications of the Astronomical Society of Japan. 76(2). 219–250. 6 indexed citations
12.
Harikane, Yuichi, Masami Ouchi, Masamune Oguri, et al.. (2023). 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. The Astrophysical Journal Supplement Series. 265(1). 5–5. 292 indexed citations breakdown →
13.
Ono, Yoshiaki, Yuichi Harikane, Masami Ouchi, et al.. (2023). 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. The Astrophysical Journal. 951(1). 72–72. 37 indexed citations
14.
Nakajima, Kimihiko, Masami Ouchi, Yuki Isobe, et al.. (2023). JWST Census for the Mass–Metallicity Star Formation Relations at z = 4–10 with Self-consistent Flux Calibration and Proper Metallicity Calibrators. The Astrophysical Journal Supplement Series. 269(2). 33–33. 111 indexed citations breakdown →
15.
Isobe, Yuki, Masami Ouchi, Kimihiko Nakajima, et al.. (2023). Redshift Evolution of Electron Density in the Interstellar Medium at z ∼ 0–9 Uncovered with JWST/NIRSpec Spectra and Line-spread Function Determinations. The Astrophysical Journal. 956(2). 139–139. 53 indexed citations
16.
Kakeya, Itsuhiro, et al.. (2023). Low-temperature electron transport of rutile-type GexSn1−xO2. Journal of Applied Physics. 134(16). 10 indexed citations
17.
Harikane, Yuichi, Kimihiko Nakajima, Masami Ouchi, et al.. (2023). Pure Spectroscopic Constraints on UV Luminosity Functions and Cosmic Star Formation History from 25 Galaxies at z spec = 8.61–13.20 Confirmed with JWST/NIRSpec. The Astrophysical Journal. 960(1). 56–56. 89 indexed citations breakdown →
18.
Umeda, Hiroya, Masami Ouchi, Kimihiko Nakajima, et al.. (2022). EMPRESS. VII. Ionizing Spectrum Shapes of Extremely Metal-poor Galaxies: Uncovering the Origins of Strong He ii and the Impact on Cosmic Reionization. The Astrophysical Journal. 930(1). 37–37. 22 indexed citations
19.
Nakajima, Kimihiko, Masami Ouchi, Yi Xu, et al.. (2022). 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. The Astrophysical Journal Supplement Series. 262(1). 3–3. 42 indexed citations
20.
Xu, Yi, Masami Ouchi, Michael Rauch, et al.. (2022). EMPRESS. VI. Outflows Investigated in Low-mass Galaxies with M ∗ = 104–107 M ⊙: Weak Feedback in Low-mass Galaxies?. The Astrophysical Journal. 929(2). 134–134. 15 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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