Physics Faculty
Distinguished Professor, Physics, NJIT
Center for Solar-Terrestrial Research
Director:   Owens Valley Solar Array
Project Scientist: Frequency Agile Solar Radiotelescope (FASR)
OFFICE: 101 Tiernan Hall
PHONE: (973) 642-7878

Professional Information
Official Bio

Education  B.S. in Physics, The University of Michigan, 1976 
Ph.D. in Astro-Geophysics, University of Colorado, 1982 

Courses and Teaching 


astrophotography photos


Spring 2013: Phys 111, Physics I
Fall     2007: Phys 121, Physics II
Fall     2013: Phys 234H, Physics III Honors
Fall     2006: Phys 202, Introductory Astronomy 
Spring 2003: Phys 321, Astronomy and Astrophysics II
Spring 2011: Phys 322, Observational Astronomy
Fall     2012: Phys 320, Astronomy and Astrophysics I
Spring 2012: Phys 728, Radio Astronomy (grad course)
Fall     2010: Phys 430, Classical Mechanics
Spring 2010: Phys 114, Data Reduction w/ Applications
Astronomy Program web pages at NJIT
NJIT Astronomy Club

Also participating in Project Astro Nova, an NSF/Astronomical Society of the Pacific initiative to pair up middle- and high-school teachers with astronomers in New Jersey. 

Research Interests 

The Sun
Space Weather

Solar physics and phenomena of the atmosphere of the Sun and solar-like stars, including solar/stellar flares, sunspots, active regions, filaments and prominences, quiet Sun network.  Measurements of physical parameters of the solar atmosphere, such as magnetic fields, density, temperature, and energy distribution of electrons and ions in the photosphere, chromosphere and corona.  Radio emission from the Sun and stars, radio emission mechanisms, radio instrumentation and techniques.  Microwave spectral imaging of the Sun and stars. High-energy solar physics, including hard and soft X-ray, extreme-ultraviolet (EUV) and gamma-ray observations. The effects of solar radio bursts on wireless communication and navigation systems. Radio frequency interference mitigation for radio astronomy observations. 

(Aug. 27, 2008): Watch video of Spectral Kurtosis elimination of Radio Frequency Interference (RFI)

News Articles:

National Academies Talk: Science with the Solar Radio Spectrum

Advisory Committee Talk: OVSA_Talk.ppt IGSR1.avi

Download a video of a solar eclipse made with GMRT


Research funding provided by the National Science Foundation and NASA


Recent Journal Articles:

Submitted or In Press:

  1. Ryabov, B. I., Gary, D. E., Peterova, N. G. and Topchilo, N. A., 2013, "Depletion in Coronal and Chromospheric Emission above Large Isolated Sunspots," Solar Physics, submitted.

Published 2013

  1. Chen, B., Bastian, T. S., White, S. M., Gary, D. E., Perley, R., Rupen, M. and Carlson, B., 2013, "Tracing Electron Beams in the Sun's Corona with Radio Dynamic Imaging Spectroscopy," Astrophysical Journal Letters, 763, 21
  2. Gary, D. E., Fleishman, G. D. and Nita, G. M., 2013, "Magnetography of Solar Flaring Loops with Microwave Imaging Spectropolarimetry," Solar Physics, DOI: 10.1007/s11207-013-0299-3, ArXiv preprint
  3. Fleishman, G. D., Kontar, E. P., Nita, G. M. and Gary, D. E. 2013, "Probing Dynamics of Electron Acceleration with Radio and X-Ray Spectroscopy, Imaging, and Timing in the 2002 April 11 Solar Flare," Astrophysical Journal, 768, 190

Published 2012

  1. Bastian, T. S., Gary, D. E., 2012, "Observing the Sun at Radio Wavelengths: Current Status and Future Prospects," Science with Large Solar Telescopes, Proceedings of IAU Special Session 6, held 22-24 August, 2012. Online at,
  2. Gary, D. E. and Hurford, G. J., 2012, "Harold Zirin," Physics Today, 65, 68

Published 2011

  1. Gary, D. E., 2011, "Solar Radio Burst Effects on Wireless Systems," 2011 IEEE International Symposium on Electromagnetic Compatibility, DOI: 10.1109/ISEMC.2011.6038392.
  2. Nita, G. M., Fleishman, G. D., Jing, J., Lesovoi, S. V., Bogod, V. M., Yasnov, L. V., Wang, H. & Gary, D. E., 2011, "3D Structure of Microwave Sources from Solar Rotation Stereoscopy vs Magnetic Extrapolations," Astrophysical Journal, 737, 82 < >
  3. Chen, B., Bastian, T. S., Gary, D. E. and Jing, J., 2011, "Spatially and Spectrall Resolved Observations of a Zebra Pattern in Solar Decimetric Radio Burst," Astrophysical Journal, 736, 64. <>
  4. Fleishman, G. D., Nita, G. M. and Gary, D. E. 2010, “New Interactive Solar Flare Modeling and Advanced Radio Diagnostics Tools,”Advances in Plasma Astrophysics, IAU Symp. 274, (A. Bonanno, E. de Gouveia Dal Pino & A. Kosovichev, eds.), 280 (arXiv preprint:
  5. Fleishman, G. D., Kontar, E. P., Nita, G. M. and Gary, D. E., 2011, “A Cold, Tenuous Solar Flare: Acceleration Without Heating,”Astrophysical Journal Letters, 731, L19. <Download Publication PDF>
  6. Tun, S. D., Gary, D. E., Georgoulis, M. K. 2011, “Three-dimensional Structure of a Solar Active Region from Spatially and Spectrally Resolved Microwave Observations,”Astrophysical Journal, 728, 1. <>

Published 2010

  1. Nita, G. M. and Gary, D. E. 2010, “Statistics of the SK Estimator,” Proc. of Science, <Download Publication PDF>
  2. Gary, D. E., Liu, Z. and Nita, G. M. 2010, “Hardware Implementation of an SK Spectrometer ,” Proc. of Science, <Download Publication PDF>
  3. Michalopoulou, Z-H., Mukherjee, S., Hor, Y. L., Su, K., Liu, Z., Barat, R. B., Gary, D. E., and Federici, J. F. 2010, "RDX Detection with THz Spectroscopy," Journal of Infrared, Millimeter, and Terahertz Waves, 31,1171.
  4. Nita, G. M. and Gary, D. E. 2010, “The Generalized Spectral Kurtosis Estimator,” Monthly Notices of the Royal Astronomical Society, 406L, 60 <Download Publication PDF>
  5. Gary, D. E., Liu, Z. and Nita, G. M. 2010, “A Wideband Spectrometer with RFI Detection,” Publications of the Astronomical Society of the Pacific, 122, 560<Download Publication PDF>
  6. Nita, G. M. and Gary, D. E. 2010, “Statistics of the Spectral Kurtosis Estimator,” Publications of the Astronomical Society of the Pacific, 122, 595 <Download Publication PDF>
  7. Su, K., Liu, Z., Barat, R. B., Gary, D. E., Michalopoulou, Z. H. and Federici, J. F. 2010, “ Two-dimensional interferometric and synthetic aperture imaging with a hybrid terahertz/ millimeter wave system,” Applied Optics, 49, 13

Published 2009

  1. Wang, X., Ge, H., Gary, D. E. and Nita, G. M, 2009, “Statistical Hypothesis Testing and Variance Analysis for Radio Frequency Interference Identification in Solar Data,” Publications of the Astronomical Society of the Pacific, 121, 1139
  2. Gary, D. E. 2009, “The Pluto Files—Book Review,” Times Higher Education , 9 July 2009 issue
  3. Liu, Z., Su, Ke, Gary, D. E., Federici, J. F., Barar, R. B. & Michalopoulou, Z.-H. 2009, "Video-rate terahertz interferometric and synthetic aperture imaging," Applied Optics 48, 3788
  4. Kintner, P. M. Jr., O'Hanlon, B., Gary , D. E., & Kintner, P. M. S. 2009, “Global Positioning System and Solar Radio Burst Forensics,” Radio Science, 44, RS0A08
  5. Fleishman, G. D., Nita, G. M. & Gary, D. E. 2009, “Dynamic Magnetography of Solar Flaring Loops,” Astrophysical Journal Letters, 698L, 183
  6. Dou, Y., Gary , D. E., Liu, Z., Nita, G. M., Bong, S-C., Cho, K.-S., Park, Y.-D., & Moon, Y.-J. 2009, “The Korean Solar Radio Burst Locator (KSRBL),” Publications of the Astronomical Society of the Pacific, 121, 512
  7. Qiu, J., Gary, D. E., & Fleishman, G. D. 2009, “ Evaluating Mean Magnetic Field in Flare Loops ”, Solar Physics, 255, 107
  8. Lee, J., Nita, G. M. & Gary , D. E. 2009, “Electron Energy and Magnetic Field Derived from Solar Microwave Burst Spectra,” Astrophysical Journal, 696, 274

Published 2008

  1. Gary, D. E. 2008, “Cause and Extent of the Extreme Radio Flux Density Reached by the Solar Flare of 2006 December 06,” Goodman, J.M. (Editor-in-Chief), 2008 Ionospheric Effects Symposium (Proceedings); (JMG Associates Ltd: Sheridan Books), accession No. PB2008-112709
  2. Afraimovich, E. L., Demyanov, V. V., Gary, D. E., Ishin, A. B., and Smolkov, G. Ya. 2008, “Failure of GPS Functioning Caused by Extreme Solar Radio Events,” Goodman, J.M. (Editor-in-Chief), 2008 Ionospheric Effects Symposium (Proceedings) ; (JMG Associates Ltd: Sheridan Books), accession No. PB2008-112709
  3. Melnikov, V. F., Gary, D. E., & Nita, G. M. 2008, “Peak Frequency Dynamics in Solar Microwave Bursts—Correction,” Solar Physics , 253, 75
  4. Melnikov, V. F., Gary, D. E., & Nita, G. M. 2008, “Peak Frequency Dynamics in Solar Microwave Bursts,” Solar Physics , 253, 43
  5. Nita, G. M., Fleishman, G. D., & Gary, D. E. 2008, “Spike Decomposition Technique: Modeling and Performance Tests,” Astrophysical Journal , 689, 545
  6. Lee, J., & Gary , D. E. 2008, “Parallel Motions of Coronal Hard X-Ray Source and H-alpha Ribbons,” Astrophysical Journal Letters , 685, L87
  7. Sinyukov, A. M., Liu, Z., Hor, Y. L., Su, K., Barat, R. B., Gary, D. E., Michalopoulou, Z.-H., Zorych, I., Federici, J. F. & Zimdars, D. 2008, Rapid-phase modulation of terahertz radiation for high-speed terahertz imaging and spectroscopy, Optics Letters , 33, 1593
  8. Sinyukov, A., Zorych, I., Michalopoulou, Z.-H., Gary , D., Barat, R., & Federici, J. F. 2008, Detection of explosives by Terahertz synthetic aperture imaging&mdash;focusing and spectral classification, Comptes Rendus Physique , 9, 248
  9. Cerruti, A. P., Kintner, P. M., Gary, D. E., Mannucci, A. J., Meyer, R. F., Doherty, P. and Coster, A. J. 2008, "Effect of Intense December 2006 Solar Radio Bursts on GPS Receivers," Space Weather , 6 10
  10. Liu, C., Lee, J., Jing, J., Gary, D. E., Wang, H. 2008, The Spatial Distribution of the Hard X-Ray Spectral Index and the Local Magnetic Reconnection Rate, Astrophysical Journal, 672, 69L
  11. Fleishman , G. D., Bastian, T. S. & Gary, D. E. 2008, “Broadband Quasi-periodic Radio and X-Ray Pulsations in a Solar Flare,” Astrophysical Journal, 684, 1433

Full list of Publications 

Professional Societies 

1983-present: American Astronomical Society (AAS)
2006-present: American Association for the Advancement of Science (AAAS)
1989-present: Solar Physics Division (SPD/AAS); Treasurer (1996-2001)
1983-present: International Astronomical Union (IAU) 
1985-present: American Geophysical Union (AGU)
1997-present: International Union of Radio Science (URSI)

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