• Texas Astronomers Achieve Major Improvement in Cosmic Distance Scale with
  Hubble Telescope

• University of Texas Astronomers Confirm Planets Form from Disks Around Stars
• Hubble Makes Precise Measure of Extrasolar World's True Mass

• Calibrating Stellar Models with the Pleides: Resolving the Distance Discrepency
  [GO-08335] Soderblom - PI
• Low-Mass Multiple System GL 831 (Wolf 922): Definitive Orbit and Mass-Luminosity Relation
  [GO-08728] Franz - PI
• FGS Parallaxes of Cataclysmic Variables
  [GO-09089] Harrison - PI
• FGS Astrometry of the Extrasolar Planet of Epsilon Eridani
  [GO-09167] Benedict - PI
• The Distances to AM CVn Stars
  [GO-09168] Groot - PI
• Completing the Astrometric Orbit for a Pair of Pre-Main Sequence Low-Mass Stars
  [GO-09183] Soderblom - PI
• FGS Parallaxes of Magnetic CVs
  [GO-09230] Beuermann - PI
• Calibrating the Mass-Luminosity Relation at the End of the Main Sequence
  [GO-09234] Henry - PI
• FGS Astrometry of a Star Hosting an Extrasolar Planet: The Mass of Upsilon Andromedae d
  [GO-09407] Benedict - PI
• Searching for Very Low Mass Objects in M35 Using the HST/FGS Archive
  [GO-09943] McNamara - PI
• An Astrometric Calibration of the Cepheid Period-Luminosity Relation
  [GO-09879] Benedict - PI
• Precise Distances to Nearby Planetary Nebulae
  [GO-10432] Benedict - PI
• Astrometric Masses of Extrasolar Planets and Brown Dwarfs
  [GO-10610] Benedict - PI
• The Architecture of Exoplanetary Systems
  [GO-11210] Benedict - PI
• An Astrometric Calibration of Population II Distance Indicators
  [GO-11211] Benedict - PI
• Chemical Composition of an Exo-Neptune
  [GO-11309] Bean - PI
• The Ages of Globular Clusters and the Population II Distance Scale
  [GO-11704] Benedict - PI
• The Parallax of the Planet Host Star XO-3
  [GO-11706] Benedict - PI
• A Definitive HST/FGS Parallax for the Hyades
  [GO-11746] Benedict - PI
• Increasing the Accuracy of HST Astrometry with FGS1r
  [GO-11942] Benedict - PI

Astrometry with the Hubble Space Telescope: Trigonometric Parallaxes of Planetary Nebula Nuclei NGC 6853, NGC 7293, Abell 31, and DeHt 5
Benedict, G. F., Mc Arthur, B. E., Napiwotzki, R., Harrison, T. E., Harris, H. C., Nelan, E., Bond, H. E., Patterson, R. J., & Ciardullo, R., 2009, AJ, 138, 1969

A Hubble Space Telescope transit light curve for GJ 436b
Bean, J. L., Benedict, G. F., Charbonneau, D., Homeier, D., Taylor, D. C., McArthur, B., Seifahrt, A., Dreizler, S., & Reiners, A., 2008, A A, 486, 1039

Detection of a Third Planet in the HD 74156 System Using the Hobby-Eberly Telescope
Bean, J. L., McArthur, B. E., Benedict, G. F.,   Armstrong, A., 2008, ApJ, 672, 1202

A new calibration of Galactic Cepheid period-luminosity relations from B to K bands, and a comparison to LMC relations
Fouqué, P., Arriagada, P., Storm, J., Barnes, T. G., Nardetto, N., Mérand, A., Kervella, P., Gieren, W., Bersier, D., Benedict, G. F., & McArthur, B. E., 2007, A&A, 476, 73

Hubble Space Telescope Parallaxes of AM CVn Stars and Astrophysical Consequences
Roelofs, G. H. A., Groot, P. J., Benedict, G. F., McArthur, B. E., Steeghs, D., Morales-Rueda, L., Marsh, T. R., & Nelemans, G., 2007, ApJ, 666, 1174

The Mass of the Candidate Exoplanet Companion to HD 33636 from Hubble Space Telescope Astrometry and High-Precision Radial Velocities
Bean, J. L., McArthur, B. E., Benedict, G. F., Harrison, T. E., Bizyaev, D., Nelan, E., & Smith, V. V., 2007, AJ, 134, 749

Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations
Benedict, G.F., McArthur, B.E., Feast, M.W., Barnes, T.G., Harrison, T.E., Patterson, R.J., Menzies, J.W., Bean, J.L., & Freedman, W.L. 2007, AJ, 133, 1810

The Extrasolar Planet ε Eridani b: Orbit and Mass
Benedict, G.F., McArthur, B.E., Gatewood, G., Nelan, E., Cochran, W.D., Hatzes, A., Endl, M., Wittenmyer, R., Baliunas, S.L., Walker, G.A.H., Yang, S., Kürster, M., Els, S., & Paulson, D.B. 2006, AJ, 132, 2206

The Optical Field Angle Distortion Calibration of HST Fine Guidance Sensors 1R and 3
McArthur, B.E., Benedict, G.F., Jefferys, W.J., & Nelan, E. 2006, The 2005 HST Calibration Workshop: Hubble After the Transition to Two-Gyro Mode, 396

Confirmation of Errors in Hipparcos Parallaxes from Hubble Space Telescope Fine Guidance Sensor Astrometry of the Pleiades
Soderblom, D.R., Nelan, E., Benedict, G.F., McArthur, B., Ramirez, I., Spiesman, W., & Jones, B.F. 2005, AJ, 129, 1616

Detection of a Neptune-Mass Planet in the ρ¹ Cancri System Using the Hobby-Eberly Telescope
McArthur, B.E., Endl, M., Cochran, W.D., Benedict, G.F., Fischer, D.A., Marcy, G.W., Butler, R.P., Naef, D., Mayor, M., Queloz, D., Udry, S., & Harrison, T.E. 2004, ApJL, 614, L81

An Astrometric Calibration of the M_V-P_orb Relationship for Cataclysmic Variables based on Hubble Space Telescope Fine Guidance Sensor Parallaxes
Harrison, T.E., Johnson, J.J., McArthur, B.E., Benedict, G.F., Szkody, P., Howell, S.B., & Gelino, D.M. 2004, AJ, 127, 460

A precise HST parallax of the cataclysmic variable EX Hydrae, its system parameters, and accretion rate
Beuermann, K., Harrison, T.E., McArthur, B.E., Benedict, G.F., { Gä}nsicke, B.T. 2003, A&A, 412, 821

Astrometry with The Hubble Space Telescope: A Parallax of the Central Star of the Planetary Nebula NGC 6853
Benedict, G.F., McArthur, B.E., Fredrick, L.W., Harrison, T.E., Skrutskie, M.F., Slesnick, C.L., Rhee, J., Patterson, R.J., Nelan, E., Jefferys, W.H., van Altena, W., Montemayor, T., Shelus, P.J., Franz, O.G., Wasserman, L.H., Hemenway, P.D., Duncombe, R.L., Story, D., Whipple, A.L., & Bradley, A.J. 2003, AJ, 126, 2549

Mass-luminosity relation and space-based interferometry: from Hubble Space Telescope to the space interferometry mission
Benedict, G.F., Henry, T.J., McArthur, B.E., Gies, D.R., Golimowski, D.A., Ianna, P.A., Mason, B.D., Nelan, E.P., & Torres, G. 2003, Proc. SPIE, 4852, 110

A Mass for the Extrasolar Planet Gliese 876b Determined from Hubble Space Telescope Fine Guidance Sensor 3 Astrometry and High-Precision Radial Velocities [pdf]
Benedict, G. F.; McArthur, B. E.; Forveille, T.; Delfosse, X.; Nelan, E.; Butler, R. P.; Spiesman, W.; Marcy, G.; Goldman, B.; Perrier, C.; Jefferys, W. H.; Mayor, M., 2002, ApJL, 581, 115L

The Optical Field Angle Distortion Calibration of HST Fine Guidance Sensors 1R and 3 [pdf]
McArthur, B., Benedict, G. F., Jefferys, W. H., & Nelan, E. 2002, The 2002 HST Calibration Workshop : Hubble after the Installation of the ACS and the NICMOS Cooling System, Proceedings of a Workshop held at the Space Telescope Science Institute, Baltimore, Maryland, October 17 and 18, 2002. Edited by Santiago Arribas, Anton Koekemoer, and Brad Whitmore. Baltimore, MD: Space Telescope Science Institute, 2002., p.373

Mass-luminosity relation and space-based interferometry: from Hubble Space Telescope to the space interferometry mission [pdf]
Benedict, G. F.; Henry, Todd J.; McArthur, Barbara E.; Gies, Douglas R.; Golimowski, David A.; Ianna, Philip A.; Mason, Brian D.; Nelan, Edmund P.; Torres, Guillermo, 2002, SPIE, 4852, 110

Interferometric Astrometry of the Low-Mass Binary GL 791.2 (= HU Del) Using Hubble Space Telescope Fine Guidance Sensor 3: Parallax and Component Masses [pdf]
Benedict, G. F., McArthur, B. E., Franz, O. G., Wasserman, L. H., & Henry, T. J., 2000, AJ, 120, 1106

Hubble Space Telescope Fine Guidance Sensor Astrometric Parallaxes for Three Dwarf Novae: SS Aurigae, SS Cygni, and U Geminorum [pdf]
Harrison, T. E., McNamara, B. J., Szkody, P., McArthur, B. E., Benedict, G. F., Klemola, A.R., & Gilliland, R.L. 1999, ApJL, 515, L93

The Optical Mass-Luminosity Relation at the End of the Main Sequence (0.08-0.20 Msun) [pdf]
Henry, T. J., Franz, O. G., Wasserman, L. H., Benedict, G. F., Shelus, P. J., Ianna, P. A., Kirkpatrick, J. D., & McCarthy, D. W. 1999, ApJ, 512, 864

HD 98800: A Unique Stellar System of Post-T Tauri Stars [pdf]
Soderblom, D. R., King, J. R., Siess, L., Noll, K. S., Gilmore, D. M., Henry, T. J., Nelan, E., Burrows, C. J., Brown, R. A., Perryman, M. A. C., Benedict, G. F., McArthur, B. E., Franz, O. G., Wasserman, L. H., Jones, B. F., Latham, D. W., Torres, G., & Stefanik, R. P. 1998, ApJ, 498, 385  

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Other Papers

Resolving LB 11146 with Hubble Space Telescope's Fine Guidance Sensor
Nelan, E. P., 2007, AJ, 134, 1934

Pismis 24-1: The Stellar Upper Mass Limit Preserved
Maíz Apellániz, J., Walborn, N. R., Morrell, N. I., Niemela, V. S., & Nelan, E. P., 2007, ApJ, 660, 1480

Dynamical Mass Estimates for Incomplete Orbits: Young Multiple Stars in Taurus and Ophiuchus
Schaefer, G. H., Simon, M., Beck, T. L., Nelan, E., & Prato, L., 2006, AJ, 132, 2618

Dynamical Masses for Low-Mass Pre-Main-Sequence Stars: A Preliminary Physical Orbit for HD 98800 B
Boden, A. F., et al., 2005, ApJ, 635, 442

Dynamical Masses of Young Stars in Multiple Systems
Schaefer, G. H., Simon, M., Nelan, E., & Holfeltz, S. T., 2003, AJ, 126, 1971

The mass ratio of Charon to Pluto from Hubble Space Telescope astrometry with the fine guidance sensors [pdf]
Olkin, C. B., Wasserman, L. H., & Franz, O. G. 2003, Icarus, 164, 254

Asteroid observations with the Hubble Space Telescope. II. Duplicity search and size measurements for 6 asteroids [pdf]
Tanga, P., Hestroffer, D., Cellino, A., Lattanzi, M., Di Martino, M., & Zappala, V. 2003, A & A, 401, 733

Asteroids observations with the Hubble Space Telescope. I. Observing strategy, and data analysis and modeling process [pdf]
Hestroffer, D., Tanga, P., Cellino, A., Guglielmetti, F., Lattanzi, M., Di Martino, M., Zappala, V., & Berthier, J. 2002, A & A, 391, 1123

An Upper Limit to the Mass of the Radial Velocity Companion to rho^1 Cancri [pdf]
McGrath, M. A., Nelan, E., Black, D. C., Gatewood, G., Noll, K., Schultz, A., Lubow, S., Han, I., Stepinski, T. F., & Targett, T. 2002, ApJL, 564, L27

Optical Interferometry with HST/FGS at V > 15 [pdf]
Nelan, E. & Makidon, R. 2002, The 2002 HST Calibration Workshop : Hubble after the Installation of the ACS and the NICMOS Cooling System, Proceedings of a Workshop held at the Space Telescope Science Institute, Baltimore, Maryland, October 17 and 18, 2002. Edited by Santiago Arribas, Anton Koekemoer, and Brad Whitmore. Baltimore, MD: Space Telescope Science Institute, 2002., p.367

NOTE: HST/FGS Observations of the Asteroid (216) Kleopatra [pdf]
Tanga, P., Hestroffer, D., Berthier, J., Cellino, A., Lattanzi, M. G., di Martino, M., & Zappala, V. 2001, Icarus, 153, 451

A Dynamical Mass Constraint for Pre-Main-Sequence Evolutionary Tracks: The Binary NTT 045251+3016 [pdf]
Steffen, A. T., Mathieu, R. D., Lattanzi, M. G., Latham, D. W., Mazeh, T., Prato, L., Simon, M., Zinnecker, H., & Loreggia, D. 2001, AJ, 122, 997

The Nearby M Dwarf System Gliese 866 Revisited [pdf]
Woitas, J., Leinert, Ch., Jahreiss, H., Henry, T.J., Franz, O.G., & Wasserman, L.H. 2000, A&A, 353, 253

Variable HST guide stars (I) [pdf]
Zwintz, K., Weiss, W. W., Kuschnig, R., Gruber, R., Frandsen, S., Gray, R., & Jenkner, H. 2000, A&A Supl., 145, 481

Limits on the Spatial Extent of Active Galactic Nuclei Measured with the Fine Guidance Sensors of the Hubble Space Telescope [pdf]
Hook, R. N., Schreier, E. J., & Miley, G. 2000, ApJ, 536, 308

Hubble Deep Field guide star photometry [pdf]
Zwintz, K., Kuschnig, R., Weiss, W. W., Gray, R. O., & Jenkner, H. 1999, A&A, 343, 899

The Nearby Low-Mass Visual Binary Wolf 424 [pdf]
Torres, G., Henry, T.J., Franz, O.G., & Wasserman, L.H. 1999, AJ, 117, 562

Hubble Space Telescope Astrometric Observations of the Metal-poor Spectroscopic Binary HD 20039 [pdf]
Osborn, W. & Hershey, J. L. 1999, PASP, 111, 566

HST-FGS parallaxes of two high-velocity stars [pdf]
MacConnell, D. J., Osborn, W. H., & Miller, R. J.\ 1997, AJ, 114, 1268

Hubble space telescope astrometric observations of pre-main sequence stars for the HIPPARCOS program [pdf]
Bernacca, P. L., Lattanizi, M.~G., Bucciarelli, B., Bastian, U., Barabaro, G., Pannunzio, R., Badiali, M., Cardini, D., & Emanuele, A. 1993, A&A, 278, L47

Interferometric Angular Diameters of Mira Variables with the Hubble Space Telescope [pdf]
Lattanzi, M. G., Munari, U., Whitelock, P. A., & Feast, M. W. 1997, ApJ, 485, 328

Hubble Space Telescope Fine Guidance Sensor interferometric observations of the core of 30 doradus [pdf]
Lattanzi, M. G., Hershey, J. L., Burg, R., Taff, L. G., Holfeltz, S. T., Bucciarelli, B., Evans, I. N., Gilmozzi, R., Pringle, J., & Walborn, N. R. 1994, ApJL, 427, L21

Duplicity in Hubble Space Telescope Guide Stars: Fine Guidance Sensor Serendipitous Survey Results [pdf]
Schneider, G., Hershey, J. L., & Wenz, M. T. 1998, PASP, 110, 1012

Hubble Space Telescope Fine Guidance Sensor Astrometry of the Low-Mass Binary L722-22 [pdf]
Hershey, J. L. & Taff, L. G. 1998, AJ, 116, 1440

The effect of double stars on the guidance system of the Hubble Space Telescope [pdf]
Hershey, J. L. & Bely, P. Y. 1994, PASP, 106, 542

A deconvolution technique for Hubble Space Telescope FGS fringe analysis [pdf]
Hershey, J. L. 1992, PASP, 104, 592

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