Jun Toshikawa

Nishi-Harima Astronomical Observatory, University of Hyogo

Publications

First author

  1. "Galaxy properties from the outskirts to the core of a protocluster at z=3.699", J. Toshikawa, S. Wuyts, N. Kashikawa, et al. 2024, arXiv:2404.15910 (ADS)
  2. "An enhanced abundance of bright galaxies in protocluster candidates at z∼3–5", J. Toshikawa, S. Wuyts, N. Kashikawa, et al. 2024, MNRAS, 527, 6276 (ADS)
  3. "Discovery of Protoclusters at z∼3.7 and 4.9: Embedded in Primordial Superclusters", J. Toshikawa, M. A. Malkan, N. Kashikawa, et al. 2020, ApJ, 888, 89 (ADS)
  4. "GOLDRUSH. Ⅲ. A systematic search for protoclusters at z∼4 based on the >100 deg² area", J. Toshikawa, H. Uchiyama, N. Kashikawa, et al. 2018, PASJ, 70, S12 (ADS)
  5. "A Systematic Survey of Protoclusters at z∼3–6 in the CFHTLS Deep Fields", J. Toshikawa, N. Kashikawa, R. Overzier, et al. 2016, ApJ, 826, 114 (ADS)
  6. "A First Site of Galaxy Cluster Formation: Complete Spectroscopy of a Protocluster at z=6.01", J. Toshikawa, N. Kashikawa, R. Overzier, et al. 2014, ApJ, 792, 15 (ADS)
  7. "Discovery of a protocluster at z∼6", J. Toshikawa, N. Kashikawa, K. Ota, et al. 2012, ApJ, 750, 137 (ADS)

Co-author

  1. "Nature versus Nurture: Revisiting the Environmental Impact on Star Formation Activities of Galaxies", K. Shi, N. Malavashi, J. Toshikawa, X. Zheng, 2024, ApJ, 961, 39 (ADS)
  2. "A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). Ⅸ. The most overdense region at z∼5 inhabited by a massive radio galaxy", H. Uchiyama, T. Yamashita, T. Nagao, et al. 2022, PASJ, 74, L27 (ADS)
  3. "3D intrinsic shapes of quiescent galaxies in observations and simulations", J. Zheng, S. Wuyts, C. Witten, et al. 2022, MNRAS, 513, 4814 (ADS)
  4. "Cool outflows in MaNGA: a systematic study and comparison to the warm phase", C. T. Avery, S. Wuyts, N. M. Förster Schreiber, et al. 2022, MNRAS, 511, 4223 (ADS)
  5. "A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). .Ⅵ Distant Filamentary Structures Pointed Out by High–z Radio Galaxies at z∼4", H. Uchiyama, T. Yamashita, J. Toshikawa, et al. 2022, ApJ, 926, 76 (ADS)
  6. "Interrelation of the Environment of Lyα Emitters and Massive Galaxies at 2<z<4.5", K. Ito, N. Kashikawa, M. Tanaka, et al. 2021, ApJ, 916, 35 (ADS)
  7. "Incidence, scaling relations and physical conditions of ionized gas outflows in MaNGA", C. R. Avery, S. Wuyts, N. M. Förster Schreiber, et al. 2021, MNRAS, 503, 5134 (ADS)
  8. "Accelerated Galaxy Growth and Environmental Quenching in a Protocluster at z=3.24", K. Shi, J. Toshikawa, K.-S. Lee, et al. 2021, ApJ, 911, 46 (ADS)
  9. "Statistical Correlation between the Distribution of Lyα Emitters and Intergalactic Medium HⅠ at z∼2.2 Mapped by the Subaru/Hyper Suprime-Cam", Y. Liang, N. Kashikawa, Z. Cai, et al. 2021, ApJ, 907, 3 (ADS)
  10. "The University of Tokyo Atacama Observatory 6.5m telescope: On-sky performance of the near-infrared instrument SWIMS on the Subaru telescope", M. Konishi, K. Motohara, H. Takahashi, et al. 2020, Proc. SPIE, 11447, 114475H (ADS)
  11. "Faint Quasars Live in the Same Number Density Environments as Lyman Break Galaxies at z∼4", H. Uchiyama, M. Akiyama, J. Toshikawa, et al. 2020, ApJ, 905, 125 (ADS)
  12. "The Subaru HSC Galaxy Clustering with Photometric Redshift. Ⅰ. Dark Halo Masses versus Baryonic Properties of Galaxies at 0.3≤z≤1.4", S. Ishikawa, N. Kashiawa, M. Tanaka, et al. 2020, ApJ, 904, 128 (ADS)
  13. "A Detailed Study of Massive Galaxies in a Protocluster at z=3.13", K. Shi, J. Toshikawa, Z. Cai, et al. 2020, ApJ, 899, 79 (ADS)
  14. "The UV Luminosity Function of Protocluster Galaxies at z∼4: The Bright-end Excess and the Enhanced Star Formation Rate Density", K. Ito, N. Kashikawa, J. Toshikawa, et al. 2020, ApJ, 899, 5 (ADS)
  15. "Planck Far-infrared Detection of Hyper Suprime-Cam Protoclusters at z∼4: Hidden AGN and Star Formation Activity", M. Kubo, J. Toshikawa, N. Kashikawa, et al. 2019, ApJ, 887, 214 (ADS)
  16. "SILVERRUSH. Ⅷ. Spectroscopic Identifications of Early Large-scale Structures with Protoclusters over 200Mpc at z∼6–7: Strong Associations of Dusty Star-forming Galaxies", Y. Harikane, M. Ouchi, Y. Ono, et al. 2019, ApJ, 883, 142 (ADS)
  17. "SILVERRUSH. Ⅶ. Subaru/HSC Identifications of Protocluster Candidates at z∼6–7: Implications for Cosmic Reionization", R. Higuchi, M. Ouchi, Y. Ono, et al. 2019, ApJ, 879, 28 (ADS)
  18. "How Do Galaxies Trace a Large-scale Structure? A Case Study around a Massive Protocluster at Z=3.13", K. Shi, Y. Huang, K.-S. Lee, et al. 2019, ApJ, 879, 9 (ADS)
  19. "The Brightest UV–selected Galaxies in Protoclusters at z∼4: Ancestors of Brightest Cluster Galaxies?", K. Ito, N. Kashikawa, J. Toshikawa, et al. 2019, ApJ, 878, 68 (ADS)
  20. "Environmental impacts on molecular gas in protocluster galaxies at z∼2", K.-I. Tadaki, T. Kodama, M. Hayashi, et al. 2019, PASJ, 71, 40 (ADS)
  21. "Suppression of Low-mass Galaxy Formation around Quasars at z∼2–3", H. Uchiyama, N. Kashikawa, R. Overzier, et al. 2019, ApJ, 870, 45 (ADS)
  22. "Development status of the simultaneous two-color near-infrared multi-object spectrograph SWIMS for the TAO 6.5m telescope", M. Konishi, K. Motohara, K. Takahashi, et al. 2018, Proc. SPIE, 1070226 (ADS)
  23. "Large-scale Environment of a z=6.61 Luminous Quasar Probed by Lyα Emitters and Lyman Break Galaxies", K. Ota, B. P. Venemans, Y. Taniguchi, et al. 2018, ApJ, 856, 109 (ADS)
  24. "Luminous quasars do not live in the most overdense regions of galaxies at z∼4", H. Uchiyama, J. Toshikawa, N. Kashikawa, et al. 2018, PASJ, 70, S32 (ADS)
  25. "Enhancement of galaxy overdensity around quasar pairs at z<3.6 based on the Hyper Suprime-Cam Subaru Strategic Program Survey", M. Onoue, N. Kashikawa, H. Uchiyama, et al. 2018, PASJ, 70, S31 (ADS)
  26. "GOLDRUSH. Ⅱ. Clustering of galaxies at z∼4–6 revealed with the half-million dropouts over the 100 deg² area corresponding to 1 Gpc³", Y. Harikane, M. Ouchi, Y. Ono, et al. 2018, PASJ, 70, S11 (ADS)
  27. "Great Optically Luminous Dropout Research Using Subaru HSC (GOLDRUSH). Ⅰ. UV luminosity functions at z∼4–7 derived with the half-million dropouts on the 100 deg² sky", Y. Ono, M. Ouchi, Y. Harikane, et al. 2018, PASJ, 70, S10 (ADS)
  28. "The Hyper Suprime-Cam SSP Survey: Overview and survey design", H. Aihara, et al. 2018, PASJ, 70, S4 (ADS)
  29. "Minor Contribution of Quasars to Ionizing Photon Budget at z∼6: Update on Quasar Luminosity Function at the Faint End with Subaru/Suprime-Cam", M. Onoue, N. Kashikawa, C. J. Willott, et al. 2018, ApJ, 847, L15 (ADS)
  30. "A New Constraint on Reionization from the Evolution of the Lyα Luminosity Function at z∼6–7 Probed by a Deep Census of z=7.0 Lyα Emitter Candidates to 0.3L*", K. Ota, M. Iye, N. Kashikawa, et al. 2017, ApJ, 844, 85 (ADS)
  31. "The Galaxy-Halo Connection in High-redshift Universe: Details and Evolution of Stellar-to-halo Mass Ratios of Lyman Break Galaxies on CFHTLS Deep Fields", S. Ishikawa, N. Kashikawa, J. Toshikawa, et al. 2017, ApJ, 841, 8 (ADS)
  32. "The redshift-selected sample of long gamma-ray burst host galaxies: The overall metallicity distribution at z<0.4", Y. Niino, K. Aoki, T. Hashimoto, et al. 2017, PASJ, 69, 27 (ADS)
  33. "The very wide-field gzK Galaxy Survey — Ⅱ. The relationship between star-forming galaxies at z∼2 and their host haloes based upon HOD modelling", S. Ishikawa, N. Kashikawa, T. Hamana, et al. 2015, MNRAS, 458, 747 (ADS)
  34. "Evolution of Stellar-to-Halo Mass Ratio at z=0–7 Identified by Clustering Analysis with the Hubble Legacy Imaging and Early Subaru/Hyper Suprime-Cam Survey Data", Y. Harikane, M. Ouchi, Y. Ono, et al. 2015, ApJ, 821, 123 (ADS)
  35. "The very wide-field gzK galaxy survey — Ⅰ. Details of the clustering properties of star-forming galaxies at z∼2", S. Ishikawa, N. Kashikawa, J. Toshikawa et al. 2015, MNRAS, 454, 205 (ADS)
  36. "The Subaru High-z Quasar Survey: Discovery of Faint z∼6 Quasars", N. Kashikawa, Y. Ishizaki, C. J. Willott, et al. 2015, ApJ, 798, 28 (ADS)
  37. "Extended Lyα Emission from a Damped Lyα Absorber at z=3.115", N. Kashikawa, T. Misawa, Y. Minowa, et al. 2014, ApJ, 780, 116 (ADS)
  38. "A Lyα Emitter with an Extremely Large Rest-frame Equivalent Width of ∼900Å at z=6.5: A Candidate Population Ⅲ-dominated Galaxy?", N. Kashikawa, T. Nagao, J. Toshikawa, et al. 2012, ApJ, 761, 85 (ADS)
  39. "WISH for deep and wide NIR surveys", T. Yamada, I. Iwata, et al. 2012, Proc. SPIE, 8442, 84421A (ADS)
  40. "Completing the Census of Ly-alpha Emitters at the Reionization Epoch", N. Kashikawa, K. Shimasaku, Y. Matsuda, et al. 2011, ApJ, 734, 119 (ADS)