Douglas R. Gies

• B.Sc. Physics and Astronomy, University of Toronto
• M.Sc. Astronomy, University of Toronto
• Ph.D. Astronomy, University of Toronto
• Postdoctoral Fellow, University of Texas at Austin, 1985-1988
• Assistant Professor, Georgia State University, 1988-1994
• Associate Professor, Georgia State University, 1994-1999
• Professor, Georgia State University, 1999-present
• Astronomy Graduate Director, Georgia State University, 2005-present

Selected Publications

• Gies, D. R., Bagnuolo, W. G., Jr., and Penny, L. R. 1997, "Photospheric Heating in Colliding Wind Binaries," Astrophysical Journal, 479, 408-415.
• Cunha, K., Lambert, D. L., Lemke, M., Gies, D. R., and Roberts, L. C. 1997, "Boron Abundances of B Stars of the Orion Association," Astrophysical Journal, 478, 211-224.
• Kaye, A. B., and Gies, D. R. 1997, "On the Line Profile Variations and Non-Radial Pulsation Modes of Zeta Tauri = HD 37202," Astrophysical Journal, 482, 1028-1037.
• Gies, D. R., Mason, B. D., Bagnuolo, W. G., Jr., Hahula, M. E., Hartkopf, W. I., McAlister, H. A., Thaller, M. L., McKibben, W. P., and Penny, L. R. 1997, "The O-type Binary 15 Monocerotis Nears Periastron," Astrophysical Journal Letters, 475, L49-L52.
• Penny, L. R., Gies, D. R., and Bagnuolo, W. G., Jr. 1997, "Tomographic Separation of Composite Spectra. IV. The Physical Properties of the Massive Close Binary DH Cep," Astrophysical Journal, 483, 439-448.
• Liu, N., Gies, D. R., Riddle, R. L., Xiong, Y., Bagnuolo, W. G., Jr., Barry, D. J., Ferrara, E. C., Hartkopf, W. I., Hooda, J. S., Mason, B. D., McAlister, H. A., Roberts, L. C., Jr., and Sowers, J. W. 1997, "Tomographic Separation of Composite Spectra. V. The Triple Star System 55 UMa," Astrophysical Journal, 485, 350-358.
• Kaper, L., Henrichs, H. F., Fullerton, A. W., Ando, H., Bjorkman, K. S., Gies, D. R., Hirata, R., Kambe, E., McDavid, D., and Nichols, J. S. 1997, "Coordinated Ultraviolet and H-alpha spectroscopy of Bright O-type Stars," Astronomy and Astrophysics, 327, 281-298.
• Mason, B. D., ten Brummelaar, T., Gies, D. R., Hartkopf, W. I., and Thaller, M. L. 1997, "ICCD Speckle Observations of Binary Stars. XVIII. An Investigation of Be Stars," Astronomical Journal, 114, 2112-2116.
• Gies, D. R., Bagnuolo, W. G., Jr., Ferrara, E. C., Kaye, A. B., Thaller, M. L., Penny, L. R., and Peters, G. J. 1998, "HST/GHRS Observations of the Be + sdO Binary Phi Persei," Astrophysical Journal, 493, 440-450.
• Howarth, I. D., Townsend, R. H. D., Clayton, M. J., Fullerton, A. W., Gies, D. R., Massa, D., Prinja, R. K., and Reid, A. H. N. 1998, "Time-dependent structure in the UV absorption lines of the rapid rotators HD 64760 (B0 Ib) and HD 93521 (O9.5 V)," Monthly Notices of the Royal Astronomical Society, 296, 949-960.
• Mason, B. D., Gies, D. R., Hartkopf, W. I., Bagnuolo, W. G., Jr., ten Brummelaar, T., and McAlister, H. A. 1998, "ICCD Speckle Observations of Binary Stars. XIX. An Astrometric/Spectroscopic Survey of O Stars," Astronomical Journal, 115, 821-847.
• Gies, D. R., Shafter, A. W., and Wiggs, M. S. 1998, "H-alpha Spectroscopy of the Unusual Binary V Sagittae," Astronomical Journal, 115, 2566-2570.
• McKibben, W. P., Bagnuolo, W. G., Jr., Gies, D. R., Hahula, M. E., Hartkopf, W. I., Roberts, L. C., Jr., Bolton, C. T., Fullerton, A. W., Mason, B. D., Penny, L. R., \& Thaller, M. L. 1998, "A Long Period Spectroscopic Binary in the O-Star Multiple System HD 193322," Publications of the Astronomical Society of the Pacific, 110, 900-905.
• Sowers, J. W., Gies, D. R., Bagnuolo, W. G., Jr., Shafter, A. W., Wiemker, R., and Wiggs, M. S. 1998, "Tomographic Analysis of H-alpha Profiles in HDE 226868/Cygnus X-1," Astrophysical Journal, 506, 424-430.
• Wang, Z., and Gies, D. R. 1998, "Constraints on the Radial Velocity Curve of HDE 245770 = A 0535+26," Publications of the Astronomical Society of the Pacific, November issue, in press.
• Gies, D. R., Kambe, E., Josephs, T. S., Bagnuolo, W. G., Jr., Choi, Y. J., Gudehus, D., Guyton, K. M., Hartkopf, W. I., Hildebrand, J. L., Kaye, A. B., Mason, B. D., Riddle, R. L., Sowers, J. W., Turner, N. H., Wilson, J. W., Xiong, Y. 1999, "Ultraviolet and Optical Line Profile Variations in the Spectrum of Epsilon Persei," Astrophysical Journal, in press.
• Gies, D. R. 2000, "Glimpses of Binary Evolution," in The Be Phenomenon in Early Type Stars, ed. M. A. Smith, H. F. Henrichs, and J. Fabregat (San Francisco: ASP), in press

Telephone: 404/413-6021

Fax: 404/413-5481

Email: gies at domain chara.gsu.edu

Postal Mail:

Dept. of Physics & Astronomy

Georgia State University

P. O. Box 4106

Atlanta, GA 30302-4106 U.S.A.

COURSES

• PERS 2002P Life on Other Worlds

PICTURES OF STARS

• The rapid rotator Regulus with the Sun for scale (made by Wenjin Huang). See details in McAlister et al. (2005, astro-ph/0501261).
• A depiction of SS 433 (made using Rob Hynes BINSIM). See details in Hillwig et al. (2004, ApJ, 615, 422).
• A movie of SS 433 (made using Rob Hynes BINSIM). See details in Hillwig et al. (2004, ApJ, 615, 422).
• A movie simulation of beta Lyrae (courtesy of Dave McCarty, Coca-Cola Space Science Center).
• A depiction of the Algol binary RY Per (made using Rob Hynes BINSIM). See details in Barai et al. (2004, ApJ, 608, 989).
• Big version of RY Per (made using Rob Hynes BINSIM). See details in Barai et al. (2004, ApJ, 608, 989).
• A depiction of the microquasar LS 5039 (painting by Bill Pounds). See details in McSwain et al. (2004, ApJ, 600, 927).
• A depiction of the Be binary Phi Per (painting by Bill Pounds). See details in Gies et al. (1998, ApJ, 493, 440).
• A depiction of the colliding winds binary LH54-425. See details in Sonneborn et al. (2007, American Astronomical Society Meeting 210, #03.04).

DOPPLER TOMOGRAPHY OF BINARY STARS

• An IDL software package for the separation of spectroscopic binary star spectra using the ILST Doppler tomography algorithm.

STELLAR ASTROPHYSICS AND INTERFEROMETRY

• A PowerPoint presentation on stellar physics topics addressed through interfermometry (presented at the NOAO Workshop on "Future Directions for Interferometry", 11-13-2006, Tucson).
• A PowerPoint presentation on studies of Be stars (presented at GSU Physics and Astronomy Colloquium, 11-07-2006).
• A PDF presentation on "Mass and Angular Momentum Transformations in Massive Binary Stars" (presented at the Georgia Tech Center for Relativistic Astrophysics Colloquium, 1-15-2009).
• "FGS Survey for Binaries Among the Massive Binary Stars"