William I. Hartkopf

  • Research Associate, Dept. of Physics & Astronomy,
    Georgia State University, 1981-1996
  • Assistant Director, Center for High Angular Resolution Astronomy,
    Georgia State University, 1985-1999
  • Associate Professor, Dept. of Physics & Astronomy,
    Georgia State University, 1996-1999
  • Astronomer, U.S. Naval Observatory, 1999 - present

    • Research Interests:

    • binary star speckle interferometry and orbital analysis, kinematics and elemental abundances of late-type giant stars, models of galactic structure and evolution

    Selected Publications

    • Proceedings of International Astronomical Union Colloquium 135, Complementary Approaches to Double and Multiple Star Research , H.A. McAlister & W.I. Hartkopf, editors, ASP Conference Series, (ASP, San Francisco), 32, (1992)
    • Binary Star Orbits from Speckle Interferometry. VIII. Orbits of 37 Close Visual Systems, W.I. Hartkopf, B.D. Mason, & H.A. McAlister, 1996, AJ, 111, 370
      complete paper (compressed ps file)
    • Binary Star Orbits from Speckle Interferometry. IX. The Nearby Solar-Type Speckle-Spectroscopic Binary Fin 347 Aa, B.D. Mason, H.A. McAlister, & W.I. Hartkopf, 1996, AJ, 112, 276
      complete paper (compressed ps file)
    • ICCD Speckle Observations of Binary Stars. XIV. A Brief Survey for Duplicity Among White Dwarf Stars, H.A. McAlister, W.I. Hartkopf, B.D. Mason, & M.M. Shara, 1996, AJ, 112, 1169
      complete paper (compressed ps file)
    • New and Improved Parameters of HD 202908 = ADS 14839: A Spectroscopic-Visual Triple System, F.C. Fekel, C.D. Scarfe, D. Barlow, A. Duquennoy, H.A. McAlister, W.I. Hartkopf, B.D. Mason, & A.A. Tokovinin, 1997, AJ, 113, 1095
    • Binary Star Orbits from Speckle Interferometry. X. Speckle/Spectroscopic Orbits of HR 233, 36 Tau, and 73 Leo, B.D. Mason, H.A. McAlister, W.I. Hartkopf, R.F. Griffin, & R.E.M. Griffin, 1997, AJ, 114, 1607
      complete paper (compressed ps file)
    • ICCD Speckle Observations of Binary Stars. XVII. Measurements During 1993 - 1995 from the Mount Wilson 2.5-m Telescope, W.I. Hartkopf, H.A. McAlister, B.D. Mason, T. ten Brummelaar, L.C. Roberts, Jr., N.H. Turner, & J.W. Wilson, 1997, AJ, 114, 1639
      main text and Table 1 (ps file)
      Table 2: measures (ps file)
    • ICCD Speckle Observations of Binary Stars. XVIII. An Investigation of Be Stars, B.D. Mason, T. ten Brummelaar, D.R. Gies, W.I. Hartkopf, & M.L. Thaller, 1997, AJ, 114, 2112
      complete paper (compressed ps file)
    • Third Catalog of Interferometric Measurements of Binary Stars, CHARA Contribution No. 4, (1999)
    • ICCD Speckle Observations of Binary Stars. XXII. A Survey of Wolf-Rayet Stars for Close Visual Companions, W.I. Hartkopf, B.D. Mason, D.R. Gies, T. ten Brummelaar, H.A. McAlister, A.F.J. Moffat, M.M. Shara, & D.J. Wallace, 1999, AJ, in press
      ps file or tex file

    Contact information:

    Telephone: 202 / 762-1478
    Fax: 202 / 762-1516
    Email:wih@crux.usno.navy.mil
    Postal Mail:
    Astrometry Dept.
    U.S. Naval Observatory
    3450 Massachusetts Ave., NW
    Washington, DC 20392-5420 U.S.A.


    As an amateur shutterbug, I have to include a few snapshots ...




    My wife, Deborah.




    Half Dome, Yosemite National Park




    Another shot from Yosemite, this time of redwoods on a foggy March day.