Dr. Jack Tueller Laboratory for High Energy Astrophysics NASA/Goddard Space Flight Center Code 661 Building 2, Room 245 Greenbelt, MD 20771 Phone 301-286-4678 Fax 301-286-1684 email tueller@gsfc.nasa.gov

PRESENT POSITION

Astrophysicist, Laboratory for High Energy Astrophysics

EDUCATION

Ph.D., Physics, Washington University in St. Louis, 1979

B.S., Physics and Math, University of Puget Sound, 1971

RESEARCH INTERESTS

My primary research interest is high resolution hard x-ray and gamma-ray spectroscopy of astrophysical sources. I have a particular interest in nucleosynthesis, especially detecting and interpreting the shapes of lines from radioactive decay (SN1987A, Galactic 26Al). I have spent many years attempting to understand the elusive source of positrons in the central region of our galaxy and the associated annihilation radiation at 511 keV. I am especially interested in the hard x-ray emission from the inner edge of black hole accretion disks in Galactic and extragalactic sources. I published the first high resolution spectrum of the hard x-ray cyclotron line from Her X-1. Most of my research has been conducted on balloon bourne instruments designed in built by small teams of scientists and engineers.

EXPERIENCE

AWARDS

1991

John C. Lindsay Memorial Award for Science (GSFC's highest science prize, one awarded each year)

Curriculum Vitae available at GSFC only.

SELECTED PUBLICATIONS

1997

"A Maximum Entropy Map of the 511 keV Positron Annihilation Line Emission Distribution near the Galactic Center", L. X.Cheng, M. Leventhal, D. M. Smith, W. R. Purcell, J. Tueller, A.Connors, D. Dixon, R. L. Kinzer, and J. G. Skibo, ApJ, 481, 43.

1996

"GRIS Detection of 26Al 1809 keV Line Emission from the Galactic Center Region as a Broad Line", J. E. Naya, S. D. Barthelmy, L. M. Bartlett, N. Gehrels, M. Leventhal, A. Parsons, B. J. Teegarden, and J. Tueller, Nature Let. Vol. 384, 44.

1993

"Gamma Ray Observations of the Galactic Center: Removing the Ridge Contribution", N. Gehrels and J. Tueller, Ap. J. 407, 597.

1993

"GRIS Detections of the 511 keV Line from the Galactic Center Region in 1992", M. Leventhal, S. D. Barthelmy, N. Gehrels, B. J. Teegarden, J. Tueller and L. M. Bartlett, Ap. J. Let. 405, L25.

1990

"Observations of Gamma-Ray Line Profiles from SN1987A", J. Tueller, S. Barthelmy, N. Gehrels, and B. J. Teegarden, Ap. J. Let. Vol. 351, L51.

1989

"Reappearance of the Annihilation Line Source at the Galactic Center", M. Leventhal, C. MacCallum, S. Barthelmy, N. Gehrels, B. J. Teegarden, and J. Tueller, Nature Let. Vol. 339, 36.

1989

"Resolution of the 1238 keV Gamma Ray Line from Supernova 1987A", B. J. Teegarden, S. Barthelmy, N. Gehrels, J. Tueller, M. Leventhal, and C. MacCallum, Nature Let. Vol. 339, 112.

1984

"Evidence for Variability of the Hard X-ray Feature in the Hercules X-1 Energy Spectrum", J. Tueller, T. Cline, W. Paciesas, B. Teegarden, D. Boclet, Ph. Durouchoux, J. Hameury, N. Prantzos, and R. Haymes, Ap. J. 279, 177.