Jeff Bary - Physics and Astronomy Faculty - Colgate University

Colgate Directory

Jeff Bary

Jeff Bary

Assistant Professor of Physics and Astronomy
Physics & Astronomy, 409 Ho Science Center
p 315-228-7693


BS, Emory & Henry College, 1995; PhD, Vanderbilt University, 2003

Teaching Experience

Colgate Courses
  • How Old is the Universe? (ASTR 165)
  • Intermediate Astronomy & Astrophysics (ASTR 210)
  • Astrophysics (ASTR 414)
  • Introductory Astronomy: Stars, Galaxies, & The Universe (ASTR 102)
  • General Physics II (PHYS 232)
  • Saving the Appearances: Galileo, the Church, and the Scientific Endeavor (FSEM/CoreSP)
Prior Experience
  • Intro Astronomy for Pre-service and In-service Teachers, University of Virginia 2005-08
  • NSF K-12 Graduate Teaching Fellow, Vanderbilt University/Metro Nashville Public Schools 2002-03
  • Introductory Astronomy Labs, Graduate Teaching Assistant, Vanderbilt University 1996-2001


Infrared and optical spectroscopy of young sun-like stars


  • Formation of stars and planetary systems
  • Star-disk interactions (circumstellar disk irradiation, accretion, bipolar outflows)
  • Evolution of proto-planetary disks (disk lifetimes, dust grain composition, and grain growth)
  • Extinction in dense cloud cores
  • Infrared spectroscopy


  • "GG Tau: The Fifth Element" DiFolco, E., Dutrey, A., Le Bouquin, J., Lacour, S., Berger, J., Kohler, R., Guilloteau, S., Pietu, V., Bary, J., Beck, T., Beust, H., & Pantin, E. 2014, A&A, in press
  • "Circumbinary Gas Accretion onto a Central Binary:  Infrared Molecular Hydrogen Emission from GG Tau A"  Beck, T.L., Bary, J.S., Dutrey, A., Pietu, V., Guilloteau, S., Lubow, S. H., & Simon, M.  2012, ApJ, 754, 72
  • "Spatially Extended Brackett Gamma Emission in the Environments of Young Stars" Beck, T. L., Bary, J.S., & McGregor, P. J.  2010, ApJ, 722, 1360
  • "Variations of the 10 um Silicate Features in the Actively Accreting T Tauri Stars: DG Tau and XZ Tau" Bary, J.S., Leisenring, J.M., & Skrutskie, M. F. 2009, ApJL, 706, L168-172
  • "Interferometric Evidence for Resolved Warm Dust in the DQ Tau System" Boden, A., Akeson, R. L., Sargent, A. I., Carpenter, J.M., Ciardi, D. R., Bary, J.S., & Skrutskie, M. F. 2009, ApJL, 696, L111
  • "Physical Conditions of Accreting Gas in T Tauri Star Systems" Bary, J., Matt, S., Skrutskie, M., Wilson, J., Peterson, D., & Nelson, M. 2008, ApJ, 687, 376
  • "Quiescent H2 Emission from Pre-Main-Sequence Stars in Chamaeleon I" Bary, J., Weintraub, D., Shukla, S., & Kastner, J. 2008, ApJ, 678, 1088
  • "Detections of Rovibrational H2 Emission from the Disks of T Tauri Stars" Bary, J., Weintraub, D., & Kastner, J. 2003, ApJ, 586, 1136
  • "Detection of Molecular Hydrogen Orbiting a 'Naked' T Tauri Star" Bary, J., Weintraub, D., & Kastner, J. 2002, ApJL, 576, 73
  • "Detection of Quiescent Molecular Hydrogen Gas in the Circumstellar Disk of a Classical T Tauri Star" Weintraub, D., Kastner, J., & Bary, J. 2000, ApJ, 541, 767


"Timescale for Disk Survival: Searching for the Molecular Hydrogen Component of Protoplanetary Disks Orbiting T Tauri Stars"

Professional Experience

NSF Astronomy and Astrophysics Postdoctoral Fellow, University of Virginia, 2005-2008
Postdoctoral Research Associate, University of Virginia, 2004-2005


  • Emory & Henry College Young Alumnus of the Year, 2010
  • NSF Astronomy and Astrophysics Postdoctoral Fellow, 2005-08
  • NSF GK-12 Graduate Teaching Fellow, 2002-03
  • AAPT -- Teaching Assistant of the Year, 2002
  • Vanderbilt College of Arts & Sciences -- teaching assistant of the year nominee, 2002