Session 108. Gravitational Lensing

Display, Saturday, January 9, 1999, 9:20am-4:00pm, Exhibit Hall 1

108.01 The MACHO Project 9 Million Star Color-Magnitude Diagram of the Large Magellanic Cloud: Probing the LMC Disk

D. R. Alves (STScI, UC Davis \& LLNL), C. Alcock, R. A. Allsman, T. S. Axelrod, A. Basu, A. C. Becker, D.P. Bennett, K. H. Cook, A.J. Drake, K. C. Freeman, M. Geha, K. Griest, L.J. King, M.J. Lehner, S.L. Marshall, D. Minniti, B.A. Peterson, P. Popowski, M.R. Pratt, P.J. Quinn, A.W. Rodgers, C.W. Stubbs, W. Sutherland, A. Tomaney, T. Vandehei, D.L. Welch (MACHO Collaboration), MACHO Collaboration

108.02 Candidate Binary Microlensing Events from the MACHO Project

A.C. Becker (U.Washington), C. Alcock, R.A. Allsman, D. R. Alves, T.S. Axelrod, D.P. Bennett, K. H. Cook, A.J. Drake, K. C. Freeman, K. Griest, L.J. King, M.J. Lehner, S.L. Marshall, D. Minniti, B.A. Peterson, P. Popowski, M.R. Pratt, P.J. Quinn, A.W. Rodgers, C.W. Stubbs, W. Sutherland, A. Tomaney, T. Vandehei, D.L. Welch, D. Baines, A. Brakel, B. Crook, J. Howard, T. Leach, D. McDowell, S. McKeown, J. Mitchell, J. Moreland, E. Pozza, P. Purcell, S. Ring, A. Salmon, K. Ward, G. Wyper, A. Heller, S. Kaspi, O. Kovo, D. Maoz, A. Retter (Wise Obs.), S.H. Rhie (Notre Dame), P. Stetson (DAO/NRC), A. Walker (CTIO), MACHO Collaboration, RAPT Collaboration

108.03 Identification on HST Images of Microlensed Stars from the MACHO Project

L.J. King (U.Notre Dame/ CfPA), C. Alcock, R.A. Allsman, D. R. Alves, T.S. Axelrod, A.C. Becker, D.P. Bennett, K. H. Cook, A.J. Drake, K. C. Freeman, K. Griest, M.J. Lehner, S.L. Marshall, D. Minniti, B.A. Peterson, P. Popowski, M.R. Pratt, P.J. Quinn, A.W. Rodgers, C.W. Stubbs, W. Sutherland, A. Tomaney, T. Vandehei, D.L. Welch (), MACHO Collaboration

108.04 Results from Difference Image Analysis of Galactic Microlensing by the MACHO Collaboration

A. J. Drake, R. A. Allsman, T. S. Axelrod, K. C. Freeman, B. A. Peterson (MSO/ANU), C. Alcock, K. H. Cook, S. L. Marshall, D. Minniti, P. Popowski (LLNL), A. C. Becker, C. W. Stubbs, A. Tomaney (Washington), D. P. Bennett, L. J. King (Notre Dame), D. R. Alves (Berkley), K. Griest, T. Vandehei (UCSD), M. J. Lehner (Sheffield), M. R. Pratt (MIT), P. J. Quinn (ESO), W. Sutherland (Oxford), D. L. Welch (McMaster), MACHO Collaboration

108.05 A Report from Microlensing Planet Search Collaboration: A Possible Earth Mass Planetary System found in MACHO-98-BLG-35?

S. H. Rhie, D. P. Bennett, P. C. Fragile, L. J. King, J. Quinn (U. Notre Dame), A. C. Becker (U. Washington), B. R. Johnson (U. Minnesota), B. A. Peterson (MSSSO), F. Abe, K. Masuda, Y. Matsubara, Y. Muraki, S. Noda, S. Sato, T. Sumi, T. Yanagisawa (Nagoya U., Japan), I. A. Bond, P. M. Kilmartin (U. Auckland and U. Canterbury, New Zealand), B. S. Carter, R. J. Dodd, G. R. Nankivell, N. J. Rumsey (Carter National Obs., New Zealand), J.B. Hearnshaw (U. Canterbury, New Zealand), M. Honda, M. Sekiguchi (U. Tokyo, Japan), J. Jugaku (Research Inst. of Civilization, Japan), S. Kabe, B. Watase (KEK Lab. Japan), B. S. Koribalski (ATNF, Australia), T. Nakamura, H. Sato (Kyoto U., Japan), N. J. Rattenbury, P. C. M. Yock (U. Auckland, New Zealand), M. Reid, D.J. Sullivan (Victoria U., New Zealand), T. Saito (Tokyo Metropolitan College of Aeronautics, Japan), M. Yoshizawa (National Astronomical Obs., Japan)

108.06 The BTC Normal Cluster Lensing Survey

I.P. Dell'Antonio (NOAO), J.A. Tyson, D. Wittman (Bell Labs, Lucent), G. Bernstein, P. Fischer, D. Smith (U. Michigan)

108.07 Limits on Planetary Companions in Microlensing Event OGLE-BUL-98-14

B. S. Gaudi, M. D. Albrow, J. P. Beaulieu, J. A. R. Caldwell, D. L. DePoy, M. Dominik, A. Gould, J. Greenhill, K. Hill, S. Kane, R. Martin, J. Menzies, R.M. Naber, R. W. Pogge, K. Pollard, P.D. Sackett, K.C. Sahu, P. Vermaak, R. Watson, A. Williams (PLANET Collaboration)

108.08 Allied Pairs of Gravitationally Lensed Images Associated with Distant Clusters of Galaxies

R.J. Lavery (Iowa State Univ.)

108.09 A New Estimate of Hubble's Constant from the Gravitational Lens PKS 1830-211

D.L. Jones, D.L. Meier (JPL/Caltech)

108.10 Observational Cosmology with a Small Telescope: A Search for Amplification Bias

D. J. Norman (U. Washington), C. D. Impey (U. Arizona)

108.11 STIS spectroscopy of UM 425 A&B

A. Smette (NOAO/NASA-GSFC), T. R. Gull (NASA/GSFC), M. S. Sahu (NOAO/NASA-GSFC)

108.12 A Fast Series Approach to Lensing by Power-law Mass Distributions and Its Applied Examples

K.-H. Chae, D.A. Turnshek (U. Pittsburgh)

108.13 The Colors of Halo White Dwarfs

D. Saumon, S. B. Jacobson (Vanderbilt U.)