Moran, James
Fellowship Advisor Inactive Smithsonian Astrophysical Observatory staffMoran, James
Fellowship Advisor Inactive Smithsonian Astrophysical Observatory staffRadio astronomy; very long-baseline interferometry; cosmic masers; star-formation studies; active galactic nuclei, black holes (especially the one in the center of the Milky Way)
Background And Education
Education And Training
Publications
Selected Publications
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Article
- Prasad, Sirina, Zhang, Qizhou, Moran, James M., Cao, Yue, Jimenéz-Serra, Izaskun, Martín-Pintado, Jesus, Martínez-Henares, Antonio, and Báez-Rubio, Alejandro. 2023. "Detection of a High-velocity Jet from MWC 349A Traced by Hydrogen Recombination Line Maser Emission." The Astrophysical Journal, 953. https://doi.org/10.3847/2041-8213/ace7ba. 2023
- Martínez-Henares, Antonio, Jiménez-Serra, Izaskun, Martín-Pintado, Jesús, Huélamo, Nuria, Prasad, Sirina, Zhang, Qizhou, Moran, James M., Cao, Yue, and Báez-Rubio, Alejandro. 2023. "Modeling of the High-velocity Jet Powered by the Massive Star MWC 349A." The Astrophysical Journal, 955 119. https://doi.org/10.3847/1538-4357/acebcd. 2023
- Broderick, Avery E., Pesce, Dominic W., Gold, Roman, Tiede, Paul, Pu, Hung-Yi, Anantua, Richard, Britzen, Silke, Ceccobello, Chiara, Chatterjee, Koushik, Chen, Yongjun, Conroy, Nicholas S., Crew, Geoffrey B., Cruz-Osorio, Alejandro, Cui, Yuzhu, Doeleman, Sheperd S., Emami, Razieh, Farah, Joseph, Fromm, Christian M., Galison, Peter, Georgiev, Boris, Ho, Luis C., James, David J., Jeter, Britton, Jimenez-Rosales, Alejandra, Koay, Jun Yi et al. 2022. "The Photon Ring in M87*." The Astrophysical Journal, 935 61. https://doi.org/10.3847/1538-4357/ac7c1d. 2022
- Shakhvorostova, N. N., Sobolev, A. M., Moran, James M., Alakoz, A. V., Imai, H., and Avdeev, V. Y. 2020. "RadioAstron probes the ultra-fine spatial structure in the H2O maser emission in the star forming region W49N." Advances in Space Research, 65 772–779. https://doi.org/10.1016/j.asr.2019.05.011. 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
- 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
- Sobolev, A. M., Moran, J. M., Gray, M. D., Alakoz, A., Imai, H., Baan, W. A., Tolmachev, A. M., Samodurov, V. A., and Ladeyshchikov, D. A. 2018. "Sun-sized Water Vapor Masers in Cepheus A." The Astrophysical Journal, 856 60. https://doi.org/10.3847/1538-4357/aab096. 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
- Zhang, Qizhou, Claus, Brian, Watson, Linda, and Moran, James M. 2017. "Angular Momentum in Disk Wind Revealed in the Young Star MWC 349A." The Astrophysical Journal, 837 53. https://doi.org/10.3847/1538-4357/aa5ea9. 2017
- 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
- 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
- Zapata, Luis A., Palau, Aina, Galván-Madrid, Roberto, Rodríguez, Luis F., Garay, Guido, Moran, James M., and Franco-Hernández, Ramiro. 2015. "ALMA reveals a candidate hot and compact disc around the O-type protostar IRAS 16547-4247." Monthly Notices of the Royal Astronomical Society, 447 1826–1833. https://doi.org/10.1093/mnras/stu2527. 2015
- Bower, Geoffrey C., Markoff, Sera, Dexter, Jason, Gurwell, Mark A., Moran, James M., Brunthaler, Andreas, Falcke, Heino, Fragile, P. Chris, Maitra, Dipankar, Marrone, Dan, Peck, Alison, Rushton, Anthony, and Wright, Melvyn C. H. 2015. "Radio and Millimeter Monitoring of Sgr A*: Spectrum, Variability, and Constraints on the G2 Encounter." The Astrophysical Journal, 802 69. https://doi.org/10.1088/0004-637X/802/1/69. 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
- Guzmán, Andrés E., Garay, Guido, Rodríguez, Luis F., Moran, James M., Brooks, Kate J., Bronfman, Leonardo, Nyman, Lars-Åke, Sanhueza, Patricio, and Mardones, Diego. 2014. "The Slow Ionized Wind and Rotating Disklike System that are Associated with the High-mass Young Stellar Object G345.4938 01.4677." The Astrophysical Journal, 796 117. https://doi.org/10.1088/0004-637X/796/2/117. 2014
- Lu, Ru-Sen, Fish, Vincent L., Akiyama, Kazunori, Doeleman, Sheperd S., Algaba, Juan C., Bower, Geoffrey C., Brinkerink, Christiaan, Chamberlin, Richard, Crew, Geoffrey, Cappallo, Roger J., Dexter, Matt, Freund, Robert, Friberg, Per, Gurwell, Mark A., Ho, Paul T. P., Honma, Mareki, Inoue, Makoto, Jorstad, Svetlana G., Krichbaum, Thomas P., Loinard, Laurent, MacMahon, David, Marrone, Daniel P., Marscher, Alan P., Moran, James M., Plambeck, Richard et al. 2013. "Fine-scale Structure of the Quasar 3C 279 Measured with 1.3 mm Very Long Baseline Interferometry." The Astrophysical Journal, 772 13. https://doi.org/10.1088/0004-637X/772/1/13. 2013
- Humphreys, E. M. L., Reid, M. J., Moran, James M., Greenhill, L. J., and Argon, A. L. 2013. "Toward a New Geometric Distance to the Active Galaxy NGC 4258. III. Final Results and the Hubble Constant." The Astrophysical Journal, 775 13. https://doi.org/10.1088/0004-637X/775/1/13. 2013
- Doeleman, Sheperd S., Fish, Vincent L., Schenck, David E., Beaudoin, Christopher, Blundell, Ray, Bower, Geoffrey C., Broderick, Avery E., Chamberlin, Richard, Freund, Robert, Friberg, Per, Gurwell, Mark A., Ho, Paul T. P., Honma, Mareki, Inoue, Makoto, Krichbaum, Thomas P., Lamb, James, Loeb, Abraham, Lonsdale, Colin, Marrone, Daniel P., Moran, James M., Oyama, Tomoaki, Plambeck, Richard, Primiani, Rurik A., Rogers, Alan E. E., Smythe, Daniel L. et al. 2012. "Jet-Launching Structure Resolved Near the Supermassive Black Hole in M87." Science, 338 355. https://doi.org/10.1126/science.1224768. 2012
- Muñoz, D. J., Marrone, D. P., Moran, James M., and Rao, R. 2012. "The Circular Polarization of Sagittarius A* at Submillimeter Wavelengths." The Astrophysical Journal, 745, (2). https://doi.org/10.1088/0004-637X/745/2/115. 2012
- Fish, Vincent L., Doeleman, Sheperd S., Beaudoin, Christopher, Blundell, Raymond, Bolin, David E., Bower, Geoffrey C., Chamberlin, Richard, Freund, Robert, Friberg, Per, Gurwell, Mark A., Honma, Mareki, Inoue, Makoto, Krichbaum, Thomas P., Lamb, James, Marrone, Daniel P., Moran, James M., Oyama, Tomoaki, Plambeck, Richard, Primiani, Rurik, Rogers, Alan E. E., Smythe, Daniel L., SooHoo, Jason, Strittmatter, Peter, Tilanus, Remo P. J., Titus, Michael et al. 2011. "1.3 mm Wavelength VLBI of Sagittarius A*: Detection of Time-variable Emission on Event Horizon Scales." The Astrophysical Journal Letters, 727, (2) L36. 2011
- Zhao, Jun-Hui, Blundell, Raymond, Moran, James M., Downes, Dennis, Schuster, Karl F., and Marrone, Daniel P. 2010. "The High-density Ionized Gas in the Central Parsec of the Galaxy." The Astrophysical Journal, 723 1097–1109. https://doi.org/10.1088/0004-637X/723/2/1097. 2010
- Greenhill, Lincoln J., Kondratko, Paul T., Moran, James M., and Tilak, Avanti. 2009. "Discovery of Candidate H2O Disk Masers in Active Galactic Nuclei and Estimations Of Centripetal Accelerations." The Astrophysical Journal, 707 787–799. 2009
- Avalos, Martín, Lizano, Susana, Franco-Hernández, Ramiro, Rodríguez, Luis F., and Moran, James M. 2009. "Hypercompact H II Regions: Resolved Images of G34.26 0.15 a and B." The Astrophysical Journal, 690 1084–1088. https://doi.org/10.1088/0004-637X/690/2/1084. 2009
- Franco-Hernández, Ramiro, Moran, James M., Rodríguez, Luis F., and Garay, Guido. 2009. "The Rotating Molecular Structures and the Ionized Outflow Associated with IRAS 16547– 4247." The Astrophysical Journal, 701 974–983. https://doi.org/10.1088/0004-637X/701/2/974. 2009
- Marrone, D. P., Baganoff, F. K., Morris, M. R., Moran, James M., Ghez, A. M., Hornstein, S. D., Dowell, C. D., Muñoz, D. J., Bautz, M. W., Ricker, G. R., Brandt, W. N., Garmire, G. P., Lu, J. R., Matthews, K., Zhao, J. -H, Rao, R., and Bower, G. C. 2008. "An X-Ray, Infrared, and Submillimeter Flare of Sagittarius A*." The Astrophysical Journal, 682 373–383. https://doi.org/10.1086/588806. 2008
- Argon, A. L., Greenhill, L. J., Reid, Mark J., Moran, James M., and Humphreys, E. M. L. 2008. "Erratum: ``Toward a New Geometric Distance to the Active Galaxy NGC 4258. I. VLBI Monitoring of Water Maser Emission'' (ApJ, 659, 1040 [2007])." The Astrophysical Journal, 673 1249–1249. 2008
- Doeleman, Sheperd S., Weintroub, Jonathan, Rogers, Alan E. E., Plambeck, Richard, Freund, Robert, Tilanus, Remo P. J., Friberg, Per, Ziurys, Lucy M., Moran, James M., Corey, Brian, Young, Ken H., Smythe, Daniel L., Titus, Michael, Marrone, Daniel P., Cappallo, Roger J., Bock, Douglas C. -J, Bower, Geoffrey C., Chamberlin, Richard, Davis, Gary R., Krichbaum, Thomas P., Lamb, James, Maness, Holly, Niell, Arthur E., Roy, Alan, Strittmatter, Peter et al. 2008. "Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre." Nature, 455 78–80. https://doi.org/10.1038/nature07245. 2008
- Qin, Sheng-Li, Zhao, Jun-Hui, Moran, James M., Marrone, Daniel P., Patel, Nimesh A., Wang, Jun-Jie, Liu, Sheng-Yuan, and Kuan, Yi-Jehng. 2008. "Infall and Outflow of Molecular Gas in Sgr B2." The Astrophysical Journal, 677 353–372. https://doi.org/10.1086/529067. 2008
- Weintroub, Jonathan, Moran, James M., Wilner, David J., Young, Ken, Rao, Ramprasad, and Shinnaga, Hiroko. 2008. "Submillimeter Array Imaging of the Maser Emission from the H30α Radio Recombination Line in MWC 349A." The Astrophysical Journal, 677 1140–1150. https://doi.org/10.1086/529132. 2008
- Rodriguez, Luis F., Moran, James M., Franco-Hernndez, Ramiro, Garay, Guido, Brooks, Kate J., and Mardones, Diego. 2008. "The Collimated Jet Source in IRAS 16547-4247: Time Variation, Possible Precession, and Upper Limits to the Proper Motions Along the Jet Axis." The Astronomical Journal, 135 2370–2379. 2008
- Kondratko, Paul T., Greenhill, Lincoln J., and Moran, James M. 2008. "The Parsec-Scale Accretion Disk in NGC 3393." The Astrophysical Journal, 678 87–95. https://doi.org/10.1086/586879. 2008
- Humphreys, E. M. L., Reid, Mark J., Greenhill, L. J., Moran, James M., and Argon, A. L. 2008. "Toward a New Geometric Distance to the Active Galaxy NGC 4258. II. Centripetal Accelerations and Investigation of Spiral Structure." The Astrophysical Journal, 672 800–816. 2008
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Conference Paper
- Inoue, M., Algaba-Marcos, J. C., Asada, K., Chen, C. P., Chen, M. T., Koch, P., Ho, P., Huang, T., Lin, K. Y., Martin-Cocher, P., Nakamura, M., Pradel, N., Raffin, P., Matsushita, S., Blundell, R., Moran, James M., Doeleman, S., Fish, V., Brisken, W., Napier, P., Sun, W. -H, Xu, C. K., Scoville, N. Z., and Sanders, D. B. 2013. "Direct Imaging of Super Massive Black Hole Shadow." from Astronomical Society of the Pacific Conference Series. 477, 295. 2013
Contact
Location
- Smithsonian Astrophysical Observatory Academic Department
