Publications - Dr. Douglas Hudgins
updated January 2001
  1. Experimental Evidence for the Imino Methyl Radical by Neutralized Ion Beam Spectroscopy, A.B. Raksit, D.M. Hudgins, S. Buchau, and R.F. Porter, Rap.Comm.Mass Spectrom., 1(4), 57 (1987).
  2. Molecular States Formed by Ion Beam Neutralization of C2H2+ and C2H3+ on Metal Targets, D.M. Hudgins, A.B. Raksit, and R.F. Porter, Org.Mass Spectrom., 23, 375 (1988).
  3. Weakly Bound Metal Complexes by Neutralized Ion Beam Techniques: NiL and NiL2 (L = CO, D2O, and ND3), D.M. Hudgins and R.F. Porter, Rap.Comm.Mass Spectrom., 2(10), 197 (1988).
  4. A Study of the Astronomically Important Cyclopropenyl System by Neutralized Ion Beam Techniques, D.M. Hudgins, A.L. Weber, and R.F. Porter, Int.J.Mass Spectrom.Ion Proc., 98, 69 (1990).
  5. The Ni/Fe Ratio in the Crab Nebula, D.M. Hudgins, T.L. Herter, and R.J. Joyce, Ap.J.Lett., 354, L57 (1990).
  6. Type II Clathrate Hydrate Formation in Cometary Ice Analogs in Vacuo, D.F. Blake, L.J. Allamandola, S.A. Sandford, D.M. Hudgins, and F. Freund, Science, 254, 548 (1991).
  7. Mid- and Far-Infrared Spectroscopy of Ices: Optical Constants and Integrated Absorbances, D.M. Hudgins, S.A. Sandford, L.J. Allamandola, and A.G.G.M. Tielens, Ap.J.Supp.Ser., 86,713 (1993).
  8. 3.3 and 11.3 µm Images of HD44179: Evidence for an Optically Thick Polycyclic Aromatic Hydrocarbon Disk, J.D. Bregman, D. Rank, P. Temi, D.M. Hudgins, and L. Kay, Ap.J., 411, 794 (1993).
  9. Studies of the Hydrated Oxonium Radical, H3O•(H2O)n, and the Ammoniated Ammonium Radical, NH4•(NH3)n, by Neutralized Ion Beam Techniques, D.M. Hudgins and R.F. Porter, Int.J.Mass Spectrom.Ion Proc., 130, 49 (1994).
  10. Infrared Spectroscopy of Polycyclic Aromatic Hydrocarbon Cations 1. Matrix Isolated Naphthalene and Perdeuterated Naphthalene, D.M. Hudgins, S.A. Sandford, and L.J. Allamandola, J.Phys.Chem., 98, 4243 (1994).
  11. Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Cations 2. The Members of the Thermodynamically Most Favorable Series through Coronene, D.M. Hudgins and L.J. Allamandola, J.Phys.Chem., 99, 3033 (1995).
  12. Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Cations 3. The Polyacenes Anthracene, Tetracene, and Pentacene, D.M. Hudgins and L.J. Allamandola, J.Phys.Chem., 99, 8978 (1995).
  13. SWS Observations of IR Emission Features Towards Compact HII Regions, P.R. Roelfsema, P. Cox, A.G.G.M. Tielens, L.J. Allamandola, J.-P. Baluteau, M.J. Barlow, D. Bientema, D.R. Boxhoorn, J.P. Cassinelli, E. Caux, E. Churchwell, P.E. Clegg, Th. de Graauw, A.M. Heras, R. Huygen, K.A. van der Hucht, D.M. Hudgins, M.F. Kessler, T. Lim, and S.A. Sandford, Astron. Astrophys., 315, L289 (1996).
  14. Infrared Spectra of Perdeuterated Naphthalene, Phenanthrene, Chrysene, and Pyrene, C.W. Bauschlicher, S.R. Langhoff, S.A. Sandford, and D.M. Hudgins, J.Phys.Chem.A, 101, 2414 (1997).
  15. Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Cations 4. The Tetracyclic PAHs, D.M. Hudgins and L.J. Allamandola, J.Phys.Chem.A, 101, 3472 (1997).
  16. Complex Organic Molecules in Space: The Carriers of the Interstellar Infrared Emission Features, D.M. Hudgins, L.J. Allamandola, and S.A. Sandford, Adv.Space Res., 19, 999 (1997).
  17. Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbons 1. Neutral PAHs Containing 2 - 4 Rings, D.M. Hudgins and S.A. Sandford, J.Phys.Chem.A, 102, 329 (1998).
  18. Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbons 2. Neutral PAHs Containing 5 or More Rings, D.M. Hudgins and S.A. Sandford, J.Phys.Chem.A, 102, 344 (1998).
  19. Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbons 3. Neutral PAHs Incorporatinga Cyclopropenyl Ring, D.M. Hudgins and S.A. Sandford, J.Phys.Chem.A, 102, 353 (1998).
  20. Infrared Spectra of Substituted Polycyclic Aromatic Hydrocarbons, S. R. Langhoff, C. W. Bauschlicher, Jr., D. M. Hudgins,S. A. Sandford, and L. J. Allamandola, J.Phys.Chem.A, 102, 1632 (1998).
  21. Modeling the Unidentified Infrared Emission with Combinations of Polycyclic Aromatic Hydrocarbons, L. J. Allamandola, D. M. Hudgins, and S. A. Sandford, Ap.J.Lett., 511, L115 (1999).
  22. The Spacing of the Interstellar 6.2 µm and 7.7 µm Emission Features as an Indicator of PAH Size, D.M. Hudgins and L.J. Allamandola, Ap.J.Lett., 513, L69 (1999).
  23. Direct Spectroscopic Evidence for Ionized PAHs in the Interstellar Medium, G.C. Sloan, T.L. Hayward, L.J. Allamandola, J.D. Bregman, B. DeVito, and D.M. Hudgins, Ap.J.Lett., 513, L65 (1999).
  24. Interstellar PAH Emission in the 11 - 14 µm Region: New Insights and a Tracer of Ionized PAHs, D.M. Hudgins and L.J. Allamandola, Ap.J.Lett., 516, L41 (1999).
  25. Symmetry Breaking and the B3LYP Functional, C.W. Bauschlicher, D.M. Hudgins, and L.J. Allamandola, Theor.Chem.Acc., 103, 154 (1999).
  26. Constraints on the Abundance of Carbon Chain Molecules in the Diffuse Interstellar Medium, L.J. Allamandola, D.M. Hudgins, C.W. Bauschlicher, and S.R. Langhoff, Astron. Astrophys., 352, 659 (1999).
  27. Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Ions 5. PAHs Incorporating a Cyclopentadienyl Ring, D.M. Hudgins, C.W. Bauschlicher, Jr., L.J. Allamandola, and J.C. Fetzer, J.Phys.Chem.A, 104, 3655 (2000).
  28. Electronic Absorption Spectra of Neutral Pentacene (C22H14) and Its Positive and Negative Ions in Ne, Ar, and Kr Matrices, T.M. Halasinski, D.M. Hudgins, F. Salama, L.J. Allamandola, and T. Bally, J.Phys.Chem.A, 104, 7484 (2000).
  29. The CCC Bending Modes of PAHs: A New Emission Plateau from 15 to 20 µm, C. Van Kerckhoven, S. Hony, E. Peeters, A.G.G.M. Tielens, L.J. Allamandola, D.M. Hudgins, P. Cox, P.R. Roelfsema, R.H.M. Voors, C. Waelkens, L.B.F.M. Waters, and P.R. Wesselius, Astron. Astrophys., 357, 1013-1019 (2000).
  30. The CH out-of-plane bending modes of PAH molecules in astrophysical environments, S. Hony, C. Van Kerckhoven, E. Peeters, A.G.G.M. Tielens, D.M. Hudgins, and L.J. Allamandola, Astron. Astrophys., (in press).
  31. Closed-Shell Polycyclic Aromatic Hydrocarbon Cations: A New Class of Interstellar PAHs, D.M. Hudgins, C.W. Bauschlicher, and L.J. Allamandola, Spectrochim.Acta.A, (in press).
  32. The Profiles of the 6.2 and 11.2 µm PAH Features, E. Peeters, S. Hony, C. Van Kerckhoven, A.G.G.M. Tielens, L.J. Allamandola, and D.M. Hudgins, Astron. Astrophys., (in preparation).

(updated January 2001)
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