Ghez, Andrea M.

Combined from CaltechAUTHORS

• Weldon, Grant C. and Do, Tuan, et el. (2023) Near-infrared Flux Distribution of Sgr A* from 2005–2022: Evidence for an Enhanced Accretion Episode in 2019; Astrophysical Journal Letters; Vol. 954; No. 1; L33; 10.3847/2041-8213/acf2f2
• Do, Tuan and Witzel, Gunther, et el. (2019) Unprecedented Near-infrared Brightness and Variability of Sgr A*; Astrophysical Journal Letters; Vol. 882; No. 2; Art. No. L27; 10.3847/2041-8213/ab38c3
• Chen, Zhuo and Gallego-Cano, E., et el. (2019) Consistency of the Infrared Variability of SGR A* over 22 yr; Astrophysical Journal Letters; Vol. 882; No. 2; Art. No. L28; 10.3847/2041-8213/ab3c68
• O'Neil, K. Kosmo and Martinez, G. D., et el. (2019) Improving Orbit Estimates for Incomplete Orbits with a New Approach to Priors: with Applications from Black Holes to Planets; Astronomical Journal; Vol. 158; No. 1; Art. No. 4; 10.3847/1538-3881/ab1d66
• Sakai, Shoko and Lu, Jessica R., et el. (2019) Galactic Center: An Improved Astrometric Reference Frame for Stellar Orbits around the Supermassive Black Hole; Astrophysical Journal; Vol. 873; No. 1; Art. No. 65; 10.3847/1538-4357/ab0361
• Jia, Siyao and Lu, Jessica R., et el. (2019) Galactic Center: Improved Relative Astrometry for Velocities, Accelerations, and Orbits near the Supermassive Black Hole; Astrophysical Journal; Vol. 873; No. 1; Art. No. 9; 10.3847/1538-4357/ab01de
• Gautam, Abhimat Krishna and Do, Tuan, et el. (2019) An Adaptive Optics Survey of Stellar Variability at the Galactic Center; Astrophysical Journal; Vol. 871; No. 1; Art. No. 103; 10.3847/1538-4357/aaf103
• Chu, Devin S. and Do, Tuan, et el. (2018) Investigating the Binarity of S0-2: Implications for Its Origins and Robustness as a Probe of the Laws of Gravity around a Supermassive Black Hole; Astrophysical Journal; Vol. 854; No. 1; Art. No. 12; 10.3847/1538-4357/aaa3eb
• Witzel, G. and Sitarski, B. N., et el. (2017) The Post-periapsis Evolution of Galactic Center Source G1: The Second Case of a Resolved Tidal Interaction with a Supermassive Black Hole; Astrophysical Journal; Vol. 847; No. 1; Art. No. 80; 10.3847/1538-4357/aa80ea
• Hees, A. and Do, T., et el. (2017) Testing General Relativity with Stellar Orbits around the Supermassive Black Hole in Our Galactic Center; Physical Review Letters; Vol. 118; No. 21; Art. No. 211101; 10.1103/PhysRevLett.118.211101
• Boehle, A. and Ghez, A. M., et el. (2016) An Improved Distance and Mass Estimate for Sgr A^* from a Multistar Orbit Analysis; Astrophysical Journal; Vol. 830; No. 1; Art. No. 17; 10.3847/0004-637X/830/1/17
• Witzel, Gunther and Lu, Jessica R., et el. (2016) The AIROPA software package - Milestones for testing general relativity in the strong gravity regime with AO; ISBN 978-1-5106-0198-7; Adaptive Optics Systems V; Art. No. 99091O; 10.1117/12.2233872
• Witzel, G. and Ghez, A. M., et el. (2014) Detection of Galactic Center Source G2 at 3.8 μm during Periapse Passage; Astrophysical Journal Letters; Vol. 796; No. 1; Art. No. L8; 10.1088/2041-8205/796/1/L8
• Hora, J. L. and Witzel, G., et el. (2014) Spitzer/IRAC Observations of the Variability of Sgr A^* and the Object G2 at 4.5 μm; Astrophysical Journal; Vol. 793; No. 2; Art. No. 120; 10.1088/0004-637X/793/2/120
• Sitarski, Breann N. and Witzel, Gunther, et el. (2014) Modeling instrumental field-dependent aberrations in the NIRC2 instrument on the Keck II telescope; ISBN 978-0-8194-9616-4; Adaptive Optics Systems IV; Art. No. 91486T; 10.1117/12.2057140
• Wright, Shelley A. and Larkin, James E., et el. (2014) The infrared imaging spectrograph (IRIS) for TMT: overview of innovative science programs; ISBN 978-0-8194-9615-7; Ground-based and Airborne Instrumentation for Astronomy V; Art. No. 91479S; 10.1117/12.2055599
• Stolte, A. and Hußmann, B., et el. (2014) The Orbital Motion of the Quintuplet Cluster—A Common Origin for the Arches and Quintuplet Clusters?; Astrophysical Journal; Vol. 789; No. 2; Art. No. 115; 10.1088/0004-637X/789/2/115
• Yelda, S. and Ghez, A. M., et el. (2014) Properties of the Remnant Clockwise Disk of Young Stars in the Galactic Center; Astrophysical Journal; Vol. 783; No. 2; Art. No. 131; 10.1088/0004-637X/783/2/131
• Phifer, K. and Do, T., et el. (2013) Keck Observations of the Galactic Center Source G2: Gas Cloud or Star?; Astrophysical Journal Letters; Vol. 773; No. 1; Art. No. L13; 10.1088/2041-8205/773/1/L13
• Do, T. and Lu, J. R., et el. (2013) Stellar Populations in the Central 0.5 pc of the Galaxy. I. A New Method for Constructing Luminosity Functions and Surface-density Profiles; Astrophysical Journal; Vol. 764; No. 2; Art. No. 154; 10.1088/0004-637X/764/2/154
• Lu, J. R. and Do, T., et el. (2013) Stellar Populations in the Central 0.5 pc of the Galaxy. II. The Initial Mass Function; Astrophysical Journal; Vol. 764; No. 2; Art. No. 155; 10.1088/0004-637X/764/2/155
• Meyer, L. and Ghez, A. M., et el. (2012) The Shortest-Known–Period Star Orbiting Our Galaxy's Supermassive Black Hole; Science; Vol. 338; No. 6103; 84-87; 10.1126/science.1225506
• Fitzgerald, Michael P. and Witzel, Gunther, et el. (2012) Modeling anisoplanatism in the Keck II laser guide star AO system; ISBN 9780819491480; Adaptive Optics Systems III; Art. No. 844724; 10.1117/12.926700
• Clarkson, W. I. and Ghez, A. M., et el. (2012) Proper Motions of the Arches Cluster with Keck Laser Guide Star Adaptive Optics: The First Kinematic Mass Measurement of the Arches; Astrophysical Journal; Vol. 751; No. 2; Art. No. 132; 10.1088/0004-637X/751/2/132
• Konopacky, Q. M. and Ghez, A. M., et el. (2012) Rotational Velocities of Individual Components in Very Low Mass Binaries; Astrophysical Journal; Vol. 750; No. 1; Art. No. 79; 10.1088/0004-637X/750/1/79
• Boden, Andrew F. and Torres, Guillermo, et el. (2012) A Surprising Dynamical Mass for V773 Tau B; Astrophysical Journal; Vol. 747; No. 1; Art. No. 17; 10.1088/0004-637X/747/1/17
• Konopacky, Q. M. and Ghez, A. M., et el. (2011) Rotational Velocities of Very Low Mass Binaries; ISBN 978-1-58381-776-6; The 16th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun; 147-154
• Lu, Jessica R. and Clarkson, Will, et el. (2011) Clarifying our View of Star Formation in Massive Young Clusters with Adaptive Optics; ISBN 978-1-58381-760-5; UP2010: Have Observations Revealed a Variable Upper End of the Initial Mass Function?; 63-71
• Yelda, S. and Lu, J. R., et el. (2010) Improving galactic center astrometry by reducing the effects of geometric distortion; Astrophysical Journal; Vol. 725; No. 1; 331-352; 10.1088/0004-637X/725/1/331
• Stolte, A. and Morris, M. R., et el. (2010) Disks in the Arches Cluster—Survival in a Starburst Environment; Astrophysical Journal; Vol. 718; No. 2; 810-831; 10.1088/0004-637X/718/2/810
• Lu, Jessica R. and Ghez, Andrea M., et el. (2010) Recent Results and Perspectives for Precision Astrometry and Photometry with Adaptive Optics; ISBN 978-0-8194-8226-6; Adaptive optics systems II; Art. No. 77361I; 10.1117/12.859737
• Eisner, J. A. and Akeson, R., et el. (2010) Science with the Keck Interferometer ASTRA program; ISBN 978-0-8194-8224-2; Optical and Infrared Interferometry II; Art. No. 773411; 10.1117/12.856418
• Barton, Elizabeth J. and Larkin, James E., et el. (2010) The Infrared Imaging Spectrograph (IRIS) for TMT: the science case; ISBN 978-0-8194-9615-7; Ground-based and Airborne Instrumentation for Astronomy III; Art. No. 77355M; 10.1117/12.856521
• Eisenhardt, Peter R. M. and Griffith, Roger L., et el. (2010) Ultracool Field Brown Dwarf Candidates Selected at 4.5 μm; Astronomical Journal; Vol. 139; No. 6; 2455-2464; 10.1088/0004-6256/139/6/2455
• Duchêne, G. and McCabe, C., et el. (2010) Panchromatic observations and modeling of the HV tau C edge-on disk; Astrophysical Journal; Vol. 712; No. 1; 112-129; 10.1088/0004-637X/712/1/112
• Do, T. and Ghez, A. M., et el. (2009) High Angular Resolution Integral-Field Spectroscopy of the Galaxy's Nuclear Cluster: A Missing Stellar Cusp?; Astrophysical Journal; Vol. 703; No. 2; 1323-1337; 10.1088/0004-637X/703/2/1323
• Do, T. and Ghez, A. M., et el. (2009) A Near-Infrared Variability Study of the Galactic Black Hole: A Red Noise Source with NO Detected Periodicity; Astrophysical Journal; Vol. 691; No. 2; 1021-1034; 10.1088/0004-637X/691/2/1021
• Lu, J. R. and Ghez, A. M., et el. (2009) A Disk of Young Stars at the Galactic Center as Determined by Individual Stellar Orbits; Astrophysical Journal; Vol. 690; No. 2; 1463-1487; 10.1088/0004-637X/690/2/1463
• Ghez, A. M. and Salim, S., et el. (2008) Measuring distance and properties of the Milky Way's central supermassive black hole with stellar orbits; Astrophysical Journal; Vol. 689; No. 2; 1044-1062; 10.1086/592738
• Lu, J. R. and Ghez, A. M., et el. (2008) Orbits and origins of the young stars in the central parsec of the galaxy; Journal of Physics: Conference Series; Vol. 131; No. 1; Art. No. 012012; 10.1088/1742-6596/131/1/012012
• Marrone, D. P. and Baganoff, F. K., et el. (2008) An X-ray, infrared, and submillimeter flare of Sagittarius A; Astrophysical Journal; Vol. 682; No. 1; 373-383; 10.1086/588806
• Bouy, Hervé and Martín, E. L., et el. (2008) Follow-up observations of binary ultra-cool dwarfs; Astronomy and Astrophysics; Vol. 481; 757-767; 10.1051/0004-6361:20078803
• Stolte, A. and Ghez, A. M., et el. (2008) The proper motion of the Arches cluster with Keck laser-guide star adaptive optics; Astrophysical Journal; Vol. 675; No. 2; 1278-1292; 10.1086/527027
• Stolte, Andrea and Ghez, Andrea M., et el. (2008) The orbital motion of the Arches cluster — clues on cluster formation near the galactic center; Journal of Physics: Conference Series; Vol. 131; Art. No. 012015; 10.1088/1742-6596/131/1/012015
• Do, T. and Ghez, A. M., et el. (2008) Testing for periodicities in near-IR light curves of Sgr A; Journal of Physics: Conference Series; Vol. 131; Art. No. 012003; 10.1088/1742-6596/131/1/012003
• Boden, Andrew F. and Torres, Guillermo, et el. (2007) Dynamical Masses for Pre-Main-Sequence Stars: A Preliminary Physical Orbit for V773 Tau A; Astrophysical Journal; Vol. 670; No. 2; 1214-1224; 10.1086/521296
• Hornstein, S. D. and Matthews, K., et el. (2007) A Constant Spectral Index for Sagittarius A* during Infrared/X-Ray Intensity Variations; Astrophysical Journal; Vol. 667; No. 2; 900-910; 10.1086/520762
• Tanner, Angelle and Beichman, Charles, et el. (2007) SIM PlanetQuest Key Project Precursor Observations to Detect Gas Giant Planets around Young Stars; Publications of the Astronomical Society of the Pacific; Vol. 119; No. 857; 747-767; 10.1086/520774
• Hornstein, S. D. and Matthews, K., et el. (2006) Infrared/X-ray intensity variations and the color of Sgr A*; Journal of Physics: Conference Series; Vol. 54; 399-405; 10.1088/1742-6596/54/1/063
• Lu, J. R. and Ghez, A. M., et el. (2006) Galactic Center Youth: Orbits and Origins of the Young Stars in the Central Parsec; Journal of Physics: Conference Series; Vol. 54; 279-287; 10.1088/1742-6596/54/1/044
• Tuthill, Peter and Monnier, John, et el. (2006) Pinwheels in the Quintuplet Cluster; Science; Vol. 313; No. 5789; 935; 10.1126/science.1128731
• Ghez, A. M. and Duchêne, G., et el. (2003) The First Measurement of Spectral Lines in a Short-Period Star Bound to the Galaxy's Central Black Hole: A Paradox of Youth; Astrophysical Journal; Vol. 586; No. 2; L127-L131; 10.1086/374804
• Matthews, K. and Ghez, A. M., et el. (1996) The First Diffraction-Limited Images from the W. M. Keck Telescope; Publications of the Astronomical Society of the Pacific; Vol. 108; No. 725; 615-619; 10.1086/133773
• Ghez, A. M. and Weinberger, A. J., et el. (1995) Speckle Imaging Measurements of the Relative Tangential Velocities of the Components of T Tauri Binary Stars; Astronomical Journal; Vol. 110; No. 2; 753-765; 10.1086/117560
• Simon, M. and Ghez, A. M., et el. (1995) A lunar occultation and direct imaging survey of multiplicity in the Ophiuchus and Taurus star-forming regions; Astrophysical Journal; Vol. 443; No. 2; 625-637; 10.1086/175554
• Ghez, A. M. and Mccarthy, D. W., et el. (1994) A near infrared speckle imaging study of T Tauri Stars; Experimental Astronomy; Vol. 3; No. 1-4; 297-300; 10.1007/BF00430179
• Ghez, A. M. and Mccarthy, D. W., et el. (1994) A near Infrared Speckle Imaging Study of T Tauri Stars; ISBN 978-94-010-4466-0; Infrared Astronomy with Arrays: The Next Generation; 449-452; 10.1007/978-94-011-1070-9_135
• Ghez, A. M. and McCarthy, D. W., Jr. (1994) Close Companions to T Tauri Stars: Abundant and Perturbing; ISBN 0-937707-75-9; 105th Meeting of the Astronomical-Society-of-the-Pacific; 221-227
• Ghez, A. M. and Neugebauer, G., et el. (1993) The multiplicity of T Tauri stars in the star forming regions Taurus-Auriga and Ophiuchus-Scorpius: A 2.2 micron speckle imaging survey; Astronomical Journal; Vol. 106; No. 5; 2005-2023; 10.1086/116782
• Ghez, A. M. and Neugebauer, G., et el. (1993) The frequency of T Tauri companion stars; Publications of the Astronomical Society of the Pacific; Vol. 105; No. 691; 951-954; 10.1086/133261
• Haniff, C. A. and Ghez, A. M., et el. (1992) Optical aperture synthetic images of the photosphere and molecular atmosphere of Mira; Astronomical Journal; Vol. 103; No. 5; 1662-1667; 10.1086/116182
• Gorham, P. W. and Ghez, A. M., et el. (1992) A search for T Tauri's optical companion star; Astronomical Journal; Vol. 103; No. 3; 953-959; 10.1086/116117
• Ghez, A. and Neugebauer, G., et el. (1992) A Two-Dimensional Near-Infrared Speckle Imaging Survey of T Tauri Stars in Taurus and Ophiuchus; ISBN 0-937707-51-1; Complementary Approaches to Double and Multiple Star Research; 1-9; 10.1017/S0252921100006059
• Ghez, A. M. and Neugebauer, G., et el. (1991) Diffraction limited infrared images of the binary star T Tauri; Astronomical Journal; Vol. 102; No. 12; 2066-2072; 10.1086/116030
• Ghez, A. M. and Gorham, P. W., et el. (1990) Infrared speckle imaging at Palomar; ISBN 9780819402813; Amplitude and Intensity Spatial Interferometry; 249-258; 10.1117/12.19298
• Weir, W. N. and Ghez, A. M., et el. (1990) Infrared nonredundant mask imaging at Palomar; ISBN 0-8194-0281-8; Amplitude and Intensity Spatial Interferometry; 274-285; 10.1117/12.19300
• Gorham, P. W. and Ghez, A. M., et el. (1990) Recovery of Diffraction-Limited Object Autocorrelations from Astronomical Speckle Interferograms using the CLEAN Algorithm; Astronomical Journal; Vol. 100; No. 1; 294-306; 10.1086/115515
• Nakajima, T. and Kulkarni, S. R., et el. (1989) Diffraction-Limited Imaging II. Optical Aperture-Synthesis Imaging of Two Binary Stars; Astronomical Journal; Vol. 97; No. 5; 1510-1521; 10.1086/115090