Research
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CCD |
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AMAC Catalog (2005) |
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AMAC Images of IM Peg |
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MAP |
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MAP Catalog (1995) |
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MAP Observations of Rho Coronae Borealis |
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Pre-publications |
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The Pleiades |
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Pi Cephei additional figures |
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Conformation of the Jupiter Mass Companion of Epsilon Eridani |
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Published Papers & Meeting Abstracts*
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| "An Astrometric Study of the Low-mass Binary Star Ross 614", George Gatewood, Louis Coban, Inwoo Han, The Astronomical Journal, Vol.125, March 2003, pp. 1530-1536 | "An upper Limit to the Mass of the Radial Velocity Companion to Rho Cancri", Melissa A. McGrath, Edmund Nelan, David C. Black, George Gatewood, Kieth Noll, Al Schultz, Stephen Lubow, Inwoo Han, Tomasz F. Stepinski, Thomas Targett, The Astrophysical Journal, Vol. 564, January 2002, pp L27- L30 |
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Abstract |
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| "A Precise Orbit Determination of xi Orionis from Astrometric and Radial Velocity Data", Inwoo Han and George Gatewood, Astronomical Society of the Pacific, Vol. 114, February 2002 pp. 224-228 | "Searching for and Characterizing Extra Solar Planets", George Gatewood, Louis Coban, Timothy Persinger, Thomas Reiland, 2000, Bull. American Astronomical Society,196 #2.01 |
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Abstract |
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| "The Pleiades, MAP Based Trigonometric Parallaxes of Open Clusters. V.", George Gatewood, Joost Kiewiet De Jonge, Inwoo Han, The Astrophysical Journal, Vol. 533, No. 2, Part 1, April 20, 2000, pp 938-943 | "Correlation of the Hipparcos and Allegheny Observatory Parallax Catalogs", George Gatewood, Joost Kiewiet De Jonge, Timothy Persinger, The Astronomical Journal, Vol.116, No. 3, September 1998, pp. 1501-1503 |
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Abstract |
| "A New Instrument for the Characterization of Extrasolar Planets", George Gatewood, Amy Snyder-Hale, Timothy Persinger, Robert McMillian, Joe Montani, Tony Moore, Marcus Perry, Astronomical Society of the Pacific, conference publications, 119, 41 (1997) | "The Multichannel Astrometric Photometer with Spectrograph: An Instrument for Characterizing Planetary Systems", Amy Snyder-Hale, George Gatewood, Robert S. McMillian, David D.S. Hale, William T. Persinger, 1997, Bull. American Astronomical Society, DPS meeting, #29 #28.20 |
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Abstract |
| "Lalande 21185", George Gatewood, Bull. American Astronomical Society, 1996, 188 #40.11 | "A MAP-Based Study of ADS 14893", George Gatewood, Inwoo Han, The Astronomical Journal, Vol. 110, No. 4, October 1995, pp. 1860-1865 |
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Abstract |
| "MAP-Based Trigonometric Parallaxes of Altair and Vega", George Gatewood, Joost Kiewiet De Jonge, The Astronomical Journal, Vol. 450, No. 1, September 1, 1995, pp. 364-368 | "MAP-Based Trigonometric Parallaxes of Open Clusters: Coma", George Gatewood, The Astrophysical Journal, Vol. 445, No. 2, Part 1, June 1, 1995, pp. 712-715 |
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Abstract |
| "Astrometric Studies in the region of Algol", George Gatewood, Joost Kiewiet De Jonge, Wulff D. Heintz, The Astronomical Journal, Vol. 109, No. 1, January, 1995, pp. 434-439 | "MAP-Based Trigonometric Parallaxes of Open Clusters: The Praesepe", George Gatewood, Joost Kiewiet De Jonge, The Astrophysical Journal, Vol. 428, No. 1, Part 1, June 10, 1994, pp. 166-169 |
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Abstract |
| "One Milliarcsecond Precision Studies in the Regions of Delta Equulei and Chi Orionis", George Gatewood, Publications of the Astronomical Society of the Pacific, Vol. 106, No. 696, February 1994 pp. 138-144 | "One Milliarcsecond Precision Studies in the Regions of Delta Cephei and EV Lacertae", George Gatewood, Joost Kiewiet De Jonge, Bruce Stephenson, Publications of the Astronomical Society of the Pacific, Vol. 105, No. 692, October 1993 pp. 1101-1106 |
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Abstract |
| "A CCD on the 30-inch Keeler Telescope at Allegheny Observatory", Edward R. Lauzier, Frank H. Briggs, B.R. Espey, Timothy Persinger, David A. Turnshek, 1993, Bull. American Astronomical Society, 183 #88.08 | "Multichannel Astrometric Photometer Parallax Studies in the Regions of Groombridge 1618, Zeta Bootis and Sigma Draconis", George Gatewood, Joost Kiewiet De Jonge, Bruce Stephenson, The Astronomical Journal, Vol. 105, No. 3, March, 1993, pp. 1179-1187 |
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Abstract |
| "Multichannel Astrometric Photometer and Photographic Astrometric Studies in the Regions of Lalande 21185, BD 56 2966 and HR 4784", George Gatewood, John Stein, Joost Kiewiet De Jonge, Timothy Persinger, The Astronomical Journal, Vol. 104, No. 3, September, 1992, pp. 1237-1247 | "MAP-Based Trigonometric Parallaxes of Open Clusters. II. The Hyades: 51 Tauri", George Gatewood, Michael Castelaz, Joost Kiewiet De Jonge, Timothy Persinger, John Stein and Bruce Stephenson, The Astrophysical Journal, Vol. 392, No. 2, Part 1, June 20, 1992, pp. 710-714 |
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| "An Astrometric Study of The Mira Variable R Leonis and the Occultation Binary 19 Leonis", George Gatewood, Publications of the Astronomical Society of the Pacific, Vol. 104, No. 671, January 1992 pp. 23-28 | "Multichannel Astrometric Photometer-Based Parallaxes of Evolved Stars: Chi Cygni, 51 Andromedae and OP Andromedae", John W. Stein, The Astrophysical Journal, Vol. 377, No. ?, Part ?, August 20, 1991, pp. 669-679 |
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| "The Multichannel Astrometric Photometer and Atmospheric Limitations in the Measurement of Relative Positions", George Gatewood, The Astronomical Journal, Vol. 94, No. 1, July, 1987, pp. 213-224 | |
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* With the exception of the 1987 MAP paper all of the publications listed here are a compilation of the last ten years of research that's been done at the Allegheny Observatory.
University of Pittsburgh
Department of Physics & Astronomy
Allegheny Observatory
159 Riverview Avenue
Pittsburgh, PA 15214
Last Modified 01/31/2006