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• Chang, Dominic O., Johnson, Michael D., and Tiede, Paul. 2025. "Assessing the Role of Intrinsic Variability in Black Hole Parameter Inference Using Multiepoch EHT Data." The Astrophysical Journal, 989 L1. https://doi.org/10.3847/2041-8213/ade431. 2025
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• Farah, Joseph, Davelaar, Jordy, Palumbo, Daniel, Johnson, Michael, and Delgado, Jonathan. 2025. "Machine and Deep Learning–driven Angular Momentum Inference from BHEX Observations of the n = 1 Photon Ring." The Astrophysical Journal, 983 185. https://doi.org/10.3847/1538-4357/adbbe3. 2025
• Nair, Raaman, Halekas, Jasper S., Cattell, Cynthia, Johnson, Michael, Hanson, Elizabeth, Whittlesey, Phyllis L., Larson, Davin E., Livi, Roberto, Kasper, Justin C., Stevens, Michael L., Bale, Stuart D., Malaspina, David M., and Pulupa, Marc P. 2025. "Suprathermal Electron Scattering by Narrowband Whistler Waves and Broadband Electrostatic Waves: Parker Solar Probe Observations." The Astrophysical Journal, 984 14. https://doi.org/10.3847/1538-4357/adbf1f. 2025
• Chang, Dominic O., Johnson, Michael D., Tiede, Paul, and Palumbo, Daniel C. M. 2024. "Bayesian Black Hole Photogrammetry." The Astrophysical Journal, 974 143. https://doi.org/10.3847/1538-4357/ad6b28. 2024
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• Palumbo, Daniel C. M., Wong, George N., Chael, Andrew, and Johnson, Michael D. 2023. "Demonstrating Photon Ring Existence with Single-baseline Polarimetry." The Astrophysical Journal, 952. https://doi.org/10.3847/2041-8213/ace630. 2023
• Johnson, Michael D., Doeleman, Sheperd S., Gómez, José L., and Broderick, Avery E. 2023. "From Vision to Instrument: Creating a Next-Generation Event Horizon Telescope for a New Era of Black Hole Science." Galaxies, 11 92. https://doi.org/10.3390/galaxies11050092. 2023
• Ricarte, Angelo, Johnson, Michael D., Kovalev, Yuri Y., Palumbo, Daniel C. M., and Emami, Razieh. 2023. "How Spatially Resolved Polarimetry Informs Black Hole Accretion Flow Models." Galaxies, 11 5. https://doi.org/10.3390/galaxies11010005. 2023
• Hambleton, Kelly M., Bianco, Federica B., Street, Rachel, Bell, Keaton, Buckley, David, Graham, Melissa, Hernitschek, Nina, Lund, Michael B., Mason, Elena, Pepper, Joshua, Prša, Andrej, Rabus, Markus, Raiteri, Claudia M., Szabó, Róbert, Szkody, Paula, Andreoni, Igor, Antoniucci, Simone, Balmaverde, Barbara, Bellm, Eric, Bonito, Rosaria, Bono, Giuseppe, Botticella, Maria Teresa, Brocato, Enzo, Bučar Bricman, Katja, Cappellaro, Enrico et al. 2023. "Rubin Observatory LSST Transients and Variable Stars Roadmap." Publications of the Astronomical Society of the Pacific, 135 105002. https://doi.org/10.1088/1538-3873/acdb9a. 2023
• Roelofs, Freek, Blackburn, Lindy, Lindahl, Greg, Doeleman, Sheperd S., Johnson, Michael D., Arras, Philipp, Chatterjee, Koushik, Emami, Razieh, Fromm, Christian, Fuentes, Antonio, Knollmüller, Jakob, Kosogorov, Nikita, Müller, Hendrik, Patel, Nimesh, Raymond, Alexander, Tiede, Paul, Traianou, Efthalia, and Vega, Justin. 2023. "The ngEHT Analysis Challenges." Galaxies, 11 12. https://doi.org/10.3390/galaxies11010012. 2023
• Pesce, Dominic W., Palumbo, Daniel C. M., Ricarte, Angelo, Broderick, Avery E., Johnson, Michael D., Nagar, Neil M., Natarajan, Priyamvada, and Gómez, José L. 2022. "Expectations for Horizon-Scale Supermassive Black Hole Population Studies with the ngEHT." Galaxies, 10 109. https://doi.org/10.3390/galaxies10060109. 2022
• Tiede, Paul, Johnson, Michael D., Pesce, Dominic W., Palumbo, Daniel C. M., Chang, Dominic O., and Galison, Peter. 2022. "Measuring Photon Rings with the ngEHT." Galaxies, 10 111. https://doi.org/10.3390/galaxies10060111. 2022
• Gelles, Zachary, Chatterjee, Koushik, Johnson, Michael, Ripperda, Bart, and Liska, Matthew. 2022. "Relativistic Signatures of Flux Eruption Events near Black Holes." Galaxies, 10 107. https://doi.org/10.3390/galaxies10060107. 2022
• Cho, Ilje, Zhao, Guang-Yao, Kawashima, Tomohisa, Kino, Motoki, Akiyama, Kazunori, Johnson, Michael D., Issaoun, Sara, Moriyama, Kotaro, Cheng, Xiaopeng, Algaba, Juan-Carlos, Jung, Taehyun, Sohn, Bong Won, Krichbaum, Thomas P., Wielgus, Maciek, Hada, Kazuhiro, Lu, Ru-Sen, Cui, Yuzhu, Sawada-Satoh, Satoko, Shen, Zhiqiang, Park, Jongho, Jiang, Wu, Ro, Hyunwook, Yi, Kunwoo, Wajima, Kiyoaki, Lee, Jee Won et al. 2022. "The Intrinsic Structure of Sagittarius A* at 1.3 cm and 7 mm." The Astrophysical Journal, 926 108. https://doi.org/10.3847/1538-4357/ac4165. 2022
• Raymond, Alexander W., Palumbo, Daniel, Paine, Scott N., Blackburn, Lindy, Córdova Rosado, Rodrigo, Doeleman, Sheperd S., Farah, Joseph R., Johnson, Michael D., Roelofs, Freek, Tilanus, Remo P. J., and Weintroub, Jonathan. 2021. "Evaluation of New Submillimeter VLBI Sites for the Event Horizon Telescope." The Astrophysical Journal Supplement Series, 253 5. https://doi.org/10.3847/1538-3881/abc3c3. 2021
• Johnson, Michael D., Kovalev, Yuri Y., Lisakov, Mikhail M., Voitsik, Petr A., Gwinn, Carl R., and Bruni, Gabriele. 2021. "First Space-VLBI Observations of Sagittarius A*." The Astrophysical Journal, 922 L28. https://doi.org/10.3847/2041-8213/ac3917. 2021
• Chael, Andrew, Johnson, Michael D., and Lupsasca, Alexandru. 2021. "Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon." The Astrophysical Journal, 918 6. https://doi.org/10.3847/1538-4357/ac09ee. 2021
• Hadar, Shahar, Johnson, Michael D., Lupsasca, Alexandru, and Wong, George N. 2021. "Photon ring autocorrelations." Physical Review D, 103 104038. https://doi.org/10.1103/PhysRevD.103.104038. 2021
• Gelles, Zachary, Himwich, Elizabeth, Johnson, Michael D., and Palumbo, Daniel C. M. 2021. "Polarized image of equatorial emission in the Kerr geometry." Physical Review D, 104 044060. https://doi.org/10.1103/PhysRevD.104.044060. 2021
• Gelles, Zachary, Prather, B. S., Palumbo, Daniel C. M., Johnson, Michael D., Wong, G. N., and Georgiev, B. 2021. "The Role of Adaptive Ray Tracing in Analyzing Black Hole Structure." The Astrophysical Journal, 912 39. https://doi.org/10.3847/1538-4357/abee13. 2021
• Pesce, Dominic W., Palumbo, Daniel C. M., Narayan, Ramesh, Blackburn, Lindy, Doeleman, Sheperd S., Johnson, Michael D., Ma, Chung-Pei, Nagar, Neil M., Natarajan, Priyamvada, and Ricarte, Angelo. 2021. "Toward Determining the Number of Observable Supermassive Black Hole Shadows." The Astrophysical Journal, 923 260. https://doi.org/10.3847/1538-4357/ac2eb5. 2021
• Blackburn, Lindy, Pesce, Dominic W., Johnson, Michael D., Wielgus, Maciek, Chael, Andrew A., Christian, Pierre, and Doeleman, Sheperd S. 2020. "Closure Statistics in Interferometric Data." The Astrophysical Journal, 894 31. https://doi.org/10.3847/1538-4357/ab8469. 2020
• Ricarte, Angelo, Prather, Ben S., Wong, George N., Narayan, Ramesh, Gammie, Charles, and Johnson, Michael D. 2020. "Decomposing the internal faraday rotation of black hole accretion flows." Monthly Notices of the Royal Astronomical Society, 498 5468–5488. https://doi.org/10.1093/mnras/staa2692. 2020
• Farah, Joseph R., Pesce, Dominic W., Johnson, Michael D., and Blackburn, Lindy. 2020. "On the Approximation of the Black Hole Shadow with a Simple Polar Curve." The Astrophysical Journal, 900 77. https://doi.org/10.3847/1538-4357/aba59a. 2020
• Johnson, Michael D., Lupsasca, Alexandru, Strominger, Andrew, Wong, George N., Hadar, Shahar, Kapec, Daniel, Narayan, Ramesh, Chael, Andrew, Gammie, Charles F., Galison, Peter, Palumbo, Daniel C. M., Doeleman, Sheperd S., Blackburn, Lindy, Wielgus, Maciek, Pesce, Dominic W., Farah, Joseph R., and Moran, James M. 2020. "Universal interferometric signatures of a black hole's photon ring." Science Advances, 6 eaaz1310. https://doi.org/10.1126/sciadv.aaz1310. 2020
• Himwich, Elizabeth, Johnson, Michael D., Lupsasca, Alexandru, and Strominger, Andrew. 2020. "Universal polarimetric signatures of the black hole photon ring." Physical Review D, 101 084020. https://doi.org/10.1103/PhysRevD.101.084020. 2020
• Alexander, Kate D., Laskar, T., Berger, Edo, Johnson, Michael D., Williams, Peter K. G., Dichiara, S., Fong, W., Gomboc, A., Kobayashi, S., Margutti, R., and Mundell, C. G. 2019. "An Unexpectedly Small Emission Region Size Inferred from Strong High-frequency Diffractive Scintillation in GRB 161219B." The Astrophysical Journal, 870 67. https://doi.org/10.3847/1538-4357/aaf19d. 2019
• Liu, Kuo, Young, André, Wharton, Robert, Blackburn, Lindy, Cappallo, Roger, Chatterjee, Shami, Cordes, James M., Crew, Geoffrey B., Desvignes, Gregory, Doeleman, Sheperd S., Eatough, Ralph P., Falcke, Heino, Goddi, Ciriaco, Johnson, Michael D., Johnston, Simon, Karuppusamy, Ramesh, Kramer, Michael, Matthews, Lynn D., Ransom, Scott M., Rezzolla, Luciano, Rottmann, Helge, Tilanus, Remo P. J., and Torne, Pablo. 2019. "Detection of Pulses from the Vela Pulsar at Millimeter Wavelengths with Phased ALMA." The Astrophysical Journal, 885 L10. https://doi.org/10.3847/2041-8213/ab4da8. 2019
• Palumbo, Daniel C. M., Doeleman, Sheperd S., Johnson, Michael D., Bouman, Katherine L., and Chael, Andrew A. 2019. "Metrics and Motivations for Earth-Space VLBI: Time-resolving Sgr A* with the Event Horizon Telescope." The Astrophysical Journal, 881 62. https://doi.org/10.3847/1538-4357/ab2bed. 2019
• Gill, Ajay, Blackburn, Lindy, Roshanineshat, Arash, Chan, Chi-kwan, Doeleman, Sheperd S., Johnson, Michael D., Raymond, Alexander W., and Weintroub, Jonathan. 2019. "Prospects for Wideband VLBI Correlation in the Cloud." Publications of the Astronomical Society of the Pacific, 131 124501. https://doi.org/10.1088/1538-3873/ab32a8. 2019
• Zhu, Ziyan, Johnson, Michael D., and Narayan, Ramesh. 2019. "Testing General Relativity with the Black Hole Shadow Size and Asymmetry of Sagittarius A*: Limitations from Interstellar Scattering." The Astrophysical Journal, 870 6. https://doi.org/10.3847/1538-4357/aaef3d. 2019
• Narayan, Ramesh, Johnson, Michael D., and Gammie, Charles F. 2019. "The Shadow of a Spherically Accreting Black Hole." The Astrophysical Journal, 885 L33. https://doi.org/10.3847/2041-8213/ab518c. 2019
• Chael, Andrew, Narayan, Ramesh, and Johnson, Michael D. 2019. "Two-temperature, Magnetically Arrested Disc simulations of the jet from the supermassive black hole in M87." Monthly Notices of the Royal Astronomical Society, 486 2873–2895. https://doi.org/10.1093/mnras/stz988. 2019
• Bower, Geoffrey C., Broderick, Avery, Dexter, Jason, Doeleman, Shepherd, Falcke, Heino, Fish, Vincent, Johnson, Michael D., Marrone, Daniel P., Moran, James M., Moscibrodzka, Monika, Peck, Alison, Plambeck, Richard L., and Rao, Ramprasad. 2018. "ALMA Polarimetry of Sgr A*: Probing the Accretion Flow from the Event Horizon to the Bondi Radius." The Astrophysical Journal, 868 101. https://doi.org/10.3847/1538-4357/aae983. 2018
• Lu, Ru-Sen, Krichbaum, Thomas P., Roy, Alan L., Fish, Vincent L., Doeleman, Sheperd S., Johnson, Michael D., Akiyama, Kazunori, Psaltis, Dimitrios, Alef, Walter, Asada, Keiichi, Beaudoin, Christopher, Bertarini, Alessandra, Blackburn, Lindy, Blundell, Ray, Bower, Geoffrey C., Brinkerink, Christiaan, Broderick, Avery E., Cappallo, Roger, Crew, Geoffrey B., Dexter, Jason, Dexter, Matt, Falcke, Heino, Freund, Robert, Friberg, Per, Greer, Christopher H. et al. 2018. "Detection of Intrinsic Source Structure at ~3 Schwarzschild Radii with Millimeter-VLBI Observations of SAGITTARIUS A*." The Astrophysical Journal, 859 60. https://doi.org/10.3847/1538-4357/aabe2e. 2018
• Chael, Andrew A., Johnson, Michael D., Bouman, Katherine L., Blackburn, Lindy L., Akiyama, Kazunori, and Narayan, Ramesh. 2018. "Interferometric Imaging Directly with Closure Phases and Closure Amplitudes." The Astrophysical Journal, 857 23. https://doi.org/10.3847/1538-4357/aab6a8. 2018
• Johnson, Michael D., Narayan, Ramesh, Psaltis, Dimitrios, Blackburn, Lindy, Kovalev, Yuri Y., Gwinn, Carl R., Zhao, Guang-Yao, Bower, Geoffrey C., Moran, James M., Kino, Motoki, Kramer, Michael, Akiyama, Kazunori, Dexter, Jason, Broderick, Avery E., and Sironi, Lorenzo. 2018. "The Scattering and Intrinsic Structure of Sagittarius A* at Radio Wavelengths." The Astrophysical Journal, 865 104. https://doi.org/10.3847/1538-4357/aadcff. 2018
• Chael, Andrew, Rowan, Michael, Narayan, Ramesh, Johnson, Michael, and Sironi, Lorenzo. 2018. "The role of electron heating physics in images and variability of the Galactic Centre black hole Sagittarius A*." Monthly Notices of the Royal Astronomical Society, 478 5209–5229. https://doi.org/10.1093/mnras/sty1261. 2018
• Johnson, Michael D., Bouman, Katherine L., Blackburn, Lindy, Chael, Andrew A., Rosen, Julian, Shiokawa, Hotaka, Roelofs, Freek, Akiyama, Kazunori, Fish, Vincent L., and Doeleman, Sheperd S. 2017. "Dynamical Imaging with Interferometry." The Astrophysical Journal, 850 172. https://doi.org/10.3847/1538-4357/aa97dd. 2017
• Gold, Roman, McKinney, Jonathan C., Johnson, Michael D., and Doeleman, Sheperd S. 2017. "Probing the Magnetic Field Structure in Sgr A* on Black Hole Horizon Scales with Polarized Radiative Transfer Simulations." The Astrophysical Journal, 837 180. https://doi.org/10.3847/1538-4357/aa6193. 2017
• Roelofs, Freek, Johnson, Michael D., Shiokawa, Hotaka, Doeleman, Sheperd S., and Falcke, Heino. 2017. "Quantifying Intrinsic Variability of Sagittarius A* Using Closure Phase Measurements of the Event Horizon Telescope." The Astrophysical Journal, 847 55. https://doi.org/10.3847/1538-4357/aa8455. 2017
• Chael, Andrew A., Johnson, Michael D., Narayan, Ramesh, Doeleman, Sheperd S., Wardle, John F. C., and Bouman, Katherine L. 2016. "High-resolution Linear Polarimetric Imaging for the Event Horizon Telescope." The Astrophysical Journal, 829 11. https://doi.org/10.3847/0004-637X/829/1/11. 2016
• Broderick, Avery E., Fish, Vincent L., Johnson, Michael D., Rosenfeld, Katherine, Wang, Carlos, Doeleman, Sheperd S., Akiyama, Kazunori, Johannsen, Tim, and Roy, Alan L. 2016. "Modeling Seven Years of Event Horizon Telescope Observations with Radiatively Inefficient Accretion Flow Models." The Astrophysical Journal, 820 137. https://doi.org/10.3847/0004-637X/820/2/137. 2016
• Fish, Vincent L., Johnson, Michael D., Doeleman, Sheperd S., Broderick, Avery E., Psaltis, Dimitrios, Lu, Ru-Sen, Akiyama, Kazunori, Alef, Walter, Algaba, Juan Carlos, Asada, Keiichi, Beaudoin, Christopher, Bertarini, Alessandra, Blackburn, Lindy, Blundell, Ray, Bower, Geoffrey C., Brinkerink, Christiaan, Cappallo, Roger, Chael, Andrew A., Chamberlin, Richard, Chan, Chi-kwan, Crew, Geoffrey B., Dexter, Jason, Dexter, Matt, Dzib, Sergio A., Falcke, Heino et al. 2016. "Persistent Asymmetric Structure of Sagittarius A* on Event Horizon Scales." The Astrophysical Journal, 820 90. https://doi.org/10.3847/0004-637X/820/2/90. 2016
• Johannsen, Tim, Broderick, Avery E., Plewa, Philipp M., Chatzopoulos, Sotiris, Doeleman, Sheperd S., Eisenhauer, Frank, Fish, Vincent L., Genzel, Reinhard, Gerhard, Ortwin, and Johnson, Michael D. 2016. "Testing General Relativity with the Shadow Size of Sgr A*." Physical Review Letters, 116 031101. https://doi.org/10.1103/PhysRevLett.116.031101. 2016
• Akiyama, Kazunori, Lu, Ru-Sen, Fish, Vincent L., Doeleman, Sheperd S., Broderick, Avery E., Dexter, Jason, Hada, Kazuhiro, Kino, Motoki, Nagai, Hiroshi, Honma, Mareki, Johnson, Michael D., Algaba, Juan C., Asada, Keiichi, Brinkerink, Christiaan, Blundell, Ray, Bower, Geoffrey C., Cappallo, Roger, Crew, Geoffrey B., Dexter, Matt, Dzib, Sergio A., Freund, Robert, Friberg, Per, Gurwell, Mark, Ho, Paul T. P., Inoue, Makoto et al. 2015. "230 GHz VLBI Observations of M87: Event-horizon-scale Structure during an Enhanced Very-high- energy -Ray State in 2012." The Astrophysical Journal, 807 150. https://doi.org/10.1088/0004-637X/807/2/150. 2015
• Johnson, Michael D., Loeb, Abraham, Shiokawa, Hotaka, Chael, Andrew A., and Doeleman, Sheperd S. 2015. "Measuring the Direction and Angular Velocity of a Black Hole Accretion Disk via Lagged Interferometric Covariance." The Astrophysical Journal, 813 132. https://doi.org/10.1088/0004-637X/813/2/132. 2015
• Johnson, Michael D., Fish, Vincent L., Doeleman, Sheperd S., Marrone, Daniel P., Plambeck, Richard L., Wardle, John F. C., Akiyama, Kazunori, Asada, Keiichi, Beaudoin, Christopher, Blackburn, Lindy, Blundell, Ray, Bower, Geoffrey C., Brinkerink, Christiaan, Broderick, Avery E., Cappallo, Roger, Chael, Andrew A., Crew, Geoffrey B., Dexter, Jason, Dexter, Matt, Freund, Robert, Friberg, Per, Gold, Roman, Gurwell, Mark A., Ho, Paul T. P., Honma, Mareki et al. 2015. "Resolved magnetic-field structure and variability near the event horizon of Sagittarius A*." Science, 350 1242–1245. https://doi.org/10.1126/science.aac7087. 2015
• Johnson, Michael D., Fish, Vincent L., Doeleman, Sheperd S., Broderick, Avery E., Wardle, John F. C., and Marrone, Daniel P. 2014. "Relative Astrometry of Compact Flaring Structures in Sgr A* with Polarimetric Very Long Baseline Interferometry." The Astrophysical Journal, 794 150. https://doi.org/10.1088/0004-637X/794/2/150. 2014