Koyama, Shoko

First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

The Event Horizon Telescope Collaboration, Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A.-K., Ball, D., Baloković, M., Barrett, J., et al. (2019) · The Astrophysical Journal Letters

Astrophysical Phenomena and ObservationsPulsars and Gravitational Waves Research

Cited by 4,205

First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring

The Event Horizon Telescope Collaboration, Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A.-K., Ball, D., Baloković, M., Barrett, J., et al. (2019) · The Astrophysical Journal Letters

Astrophysical Phenomena and ObservationsPulsars and Gravitational Waves Research

Cited by 1,424

First Sagittarius A* Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole

Event Horizon Telescope Collaboration, Akiyama, K., Alberdi, A., Alef, W., Algaba, J. C., Anantua, R., Asada, K., Azulay, R., Bach, U., Baczko, A.-K., et al. (2022) · The Astrophysical Journal Letters

Astrophysical Phenomena and ObservationsPulsars and Gravitational Waves Research

Cited by 449

First Sagittarius A* Event Horizon Telescope Results. IV. Variability, Morphology, and Black Hole Mass

Event Horizon Telescope Collaboration, Akiyama, K., Alberdi, A., Alef, W., Algaba, J. C., Anantua, R., Asada, K., Azulay, R., Bach, U., Baczko, A.-K., et al. (2022) · The Astrophysical Journal Letters

Astrophysical Phenomena and ObservationsPulsars and Gravitational Waves Research

Cited by 369

Millimeter Light Curves of Sagittarius A* Observed during the 2017 Event Horizon Telescope Campaign

Wielgus, M., Marchili, N., Martí-Vidal, I., Keating, G. K., Ramakrishnan, V., Tiede, P., Fomalont, E., Issaoun, S., Neilsen, J., Nowak, M. A., et al. (2025) · The Astrophysical Journal Letters

Astrophysical Phenomena and ObservationsPulsars and Gravitational Waves Research

Cited by 112

Polarimetric Properties of Event Horizon Telescope Targets from ALMA

Goddi, C., Martí-Vidal, I., Messias, H., Bower, G. C., Broderick, A. E., Dexter, J., Marrone, D. P., Moscibrodzka, M., Nagai, H., Algaba, J. C., et al. (2021) · The Astrophysical Journal Letters

Astrophysical Phenomena and ObservationsAstrophysics and Cosmic Phenomena

Cited by 111

THEMIS: A Parameter Estimation Framework for the Event Horizon Telescope

Broderick, A. E., Gold, R., Karami, M., Preciado-López, J. A., Tiede, P., Pu, H.-Y., Akiyama, K., Alberdi, A., Alef, W., Asada, K., et al. (2020) · The Astrophysical Journal

Astrophysical Phenomena and ObservationsPulsars and Gravitational Waves Research

Cited by 81

A Universal Power-law Prescription for Variability from Synthetic Images of Black Hole Accretion Flows

Georgiev, B., Pesce, D. W., Broderick, A. E., Wong, G. N., Dhruv, V., Wielgus, M., Gammie, C. F., Chan, C.-K., Chatterjee, K., Emami, R., et al. (2022) · The Astrophysical Journal Letters

Astrophysical Phenomena and ObservationsPulsars and Gravitational Waves Research

Cited by 40

Characterizing and Mitigating Intraday Variability: Reconstructing Source Structure in Accreting Black Holes with mm-VLBI

Broderick, A. E., Gold, R., Georgiev, B., Pesce, D. W., Tiede, P., Ni, C., Moriyama, K., Akiyama, K., Alberdi, A., Alef, W., et al. (2022) · The Astrophysical Journal Letters

Astrophysical Phenomena and ObservationsRadio Astronomy Observations and Technology

Cited by 38