Publications

Co-Author Papers

• A z ≃ 0.4 Galaxy Reflecting the High-redshift Little Red Dots: An Extended Starburst with an Overmassive Black Hole

  Chen, X., Ichikawa, K., Akiyama, M., (incl. Matsumoto, N., 12th), et al. 2026, ApJ, 999, 30.

• Discovery of an X-Ray Luminous Radio-loud Quasar at z = 3.4: A Possible Transitional Super-Eddington Phase

  Obuchi, S., Ichikawa, K., Yamada, S., (incl. Matsumoto, N., 6th), et al. 2026, ApJ, 997, 156.

• Stellar Mass Assembly History of Massive Quiescent Galaxies since z~4: Insights from Spatially Resolved Spectral Energy Distribution Fitting with JWST Data

  Haryana, N.S., Akiyama, M., Abdurro'uf., (incl. Matsumoto, N., 7th), et al. 2025, ApJ, 994, 215.

• Implication of Galaxy-scale Negative Feedback by One of the Most Powerful Multiphase Outflows in a Hyperluminous Infrared Galaxy at Intermediate Redshift

  Chen, X., Akiyama, M., Ichikawa, K., (incl. Matsumoto, N., 15th), et al. 2025, ApJ, 979, 32.

• A Systematic Search for Rapid Transients in the Subaru HSC-SSP Transient Survey

  Toshikage, S., Tanaka, M., Yasuda, N., (incl. Matsumoto, N., 8th), et al. 2024, ApJ, 977, 18.

• Ongoing and Fossil Large-scale Outflows Detected in a High-redshift Radio Galaxy: [CII] Observations of TN J0924-2201 at z=5.174

  Lee, K., Akiyama, M., Kohno, K., (incl. Matsumoto, N., 14th), et al. 2024, ApJ, 972, 111.

• Observational properties of active galactic nucleus obscuration during the peak of accretion growth

  Vijarnwannaluk, B., Akiyama, M., Schramm, M., (incl. Matsumoto, N., 7th), et al. 2024, MNRAS, 529, 3610.

• Supermassive black hole feeding and feedback observed on sub-parsec scales

  Izumi, T., Wada, K., Imanishi, M., (incl. Matsumoto, N., 9th), et al. 2023, Science, 382, 554.