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Last Updated: 03/10/05

This is an unofficial version of the NASA version of the Astrochem lab site at http://web99.arc.nasa.gov/~astrochm/

Hudgins, D.M. (2002) "Interstellar Polycyclic Aromatic Compounds and Astrophysics." Polycyclic Aromatic Compounds, 22, 469-488. [PDF]

Hudgins, D. M., Bauschlicher, Jr., C. W., & Allamandola, L. J. (2001). Closed-Shell Polycyclic Aromatic Hydrocarbon (PAH) Cations: A New Category of Interstellar Polycyclic Aromatic Hydrocarbons. Spectrochemica Acta A, 57, 907 - 930. [PDF]

Hudgins, D. M., Bauschlicher, Jr., C. W., Allamandola, L. J., & Fetzer, J. C. (2000). Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Ions 5. PAHs Incorporating a Cyclopentadienyl Ring. J. Phys. Chem. A 104, 3655. [PDF]

Hudgins, D. M., & Allamandola, L. J. (1999). Interstellar PAH Emission in the 11 - 14 Micron Region: New Insights from Laboratory Data and a Tracer of Ionized PAHs. Astrophys. J. (Letters) 516, L41-L44. [PDF]

Hudgins, D. M., & Allamandola, L. J. (1999). The Spacing of the Interstellar 6.2 and 7.7 Micron Emission Features as an Indicator of Polycyclic Aromatic Hydrocarbon Size. Astrophys. J. (Letters) 513, L69-L73. [PDF]

Hudgins, D. M., & Sandford, S. A. (1998). Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbons 1. PAHs Containing 2 to 4 Rings. J. Phys. Chem. 102, 329-343. [PDF]

Hudgins, D. M., & Sandford, S. A. (1998). Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbons 2. PAHs Containing 5 or More Rings. J. Phys. Chem. 102, 344-352. [PDF]

Hudgins, D. M., & Sandford, S. A. (1998). Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbons 3. Fluoranthene and the Benzofluoranthenes. J. Phys. Chem. 102, 353-360. [PDF]

Hudgins, D. M., & Allamandola, L. J. (1997). Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Cations 4: The Tetracyclic PAH Isomers Chrysene and 1,2-Benzanthracene. J. Phys. Chem. 101, 3472-3477. [PDF]

Hudgins, D. M., Allamandola, L. J., & Sandford, S. A. (1997). Complex Organic Molecules in Space: The Carriers of the Interstellar Infrared Emission Features. In Complex Organics in Space, 31st COSPAR Scientific Assembly, July 1996, Birmingham, UK, Advances in Space Research 19, #7, 999-1008.

Hudgins, D. M. & Allamandola, L. J. (1995). Infrared Spectoscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Cations 2: The Members of the Thermodynamically Most Favorable Series through Coronene. J. Phys. Chem. 99, 3033-3046.

Hudgins, D. M. & Allamandola, L. J. (1995). Infrared Spectoscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Cations III: The Polyacenes Anthracene, Tetracene, and Pentacene. J. Phys. Chem. 99, 8978-8986.

Hudgins, D. M., & Porter, R. F. (1994). Studies of the Hydrated Oxonium Radical, H₃O•(H₂O)_n, and the Ammoniated Ammonium Radical, NH₄•(NH₃)_n, by Neutralized Ion Beam Techniques. Int.J.Mass Spectrom.Ion Proc. 130, 49.

Hudgins, D.M., Sandford, S.A., & Allamandola, L.J. (1994). Infrared Spectroscopy of Polycyclic Aromatic Hydrocarbon Cations I: Matrix-Isolated Naphthalene and Perdeuterated Naphthalene. J. Phys. Chem. 98, 4243-4253.

Hudgins, D.M., Sandford, S.A., Allamandola, L.J., & Tielens, A.G.G.M. (1994). Mid- and Far-Infrared Spectroscopy of Ices: Optical Constants and Integrated Absorbances. The AAS CD-ROM Series, Volume 1, (expanded version of the tables in Astrophys. J. Suppl. Ser. 86, 713-870). (We can't send you a copy of this but the files exist on all the CCDs sent out by The Astrophysical Journal to date.)

Hudgins, D. M., Sandford, S. A., Allamandola, L. J., & Tielens, A. G. G. M. (1993). Mid- and Far-Infrared Spectroscopy of Ices: Optical Constants and Integrated Absorbances. Astrophys. J. Suppl. Ser. 86, 713-870. [PDF (29Mb)]

Hudgins, D. M., Herter, T. L., & Joyce, R. J. (1990). The Ni/Fe Ratio in the Crab Nebula. Astrophys. J. 354, L57-60. [PDF]

Hudgins, D. M., Weber, A. L., & Porter, R. F. (1990). A Study of the Astronomically Important Cyclopropenyl System by Neutralized Ion Beam Techniques. Int.J.Mass Spectrom.Ion Proc. 98, 69.

Hudgins, D. M., & Porter, R. F. (1988). Weakly Bound Metal Complexes by Neutralized Ion Beam Techniques: NiL and NiL₂ (L = CO, D₂O, and ND₃). Rap.Comm.Mass Spectrom. 2(10), 197.

Hudgins, D. M., Raksit, A. B., & Porter, R. F. (1988). Molecular States Formed by Ion Beam Neutralization of C₂H₂⁺ and C₂H₃⁺ on Metal Targets. Org.Mass Spectrom. 23, 375.