Questions? Contact us

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/







































































































































































































































































































































































































































































































































































































































































Weisman, J. L., T.J. Lee, F. Salama and M. Head-Gordon (2003) Time Dependent Density FunctionalTheory Calculations of large Compact PAH Cations: Implications for the DiffuseInterstellar Bands Astrophys. J., inpress.

Halasinski, T. M., J. L. Weisman, T. J. Lee, F. Salama and M. Head-Gordon (2003) ElectronicAbsorption Spectra of Neutral Perylene (C20H12), Terrylene (C30H16), and Quaterrylene (C40H20) and their Positive and Negative Ions: Ne Matrix-IsolationSpectroscopy and Time Dependent Density Functional Theory Calculations J. Phys. Chem., in press.

Allamandola, L.J. and Hudgins, D.M. (2003) "From Interstellar Polycyclic Aromatic Hydrocarbons and Ice to Astrobiology." in the Prodeedings of the NATO ASI entitled "Solid State Astrochemistry", V. Pirronello and J. Krelowski (eds.), Kluwer: Dordrecht. [PDF]

Biennier, L., F.Salama, L.J. Allamandola, J. J. Scherer and A. O'Keefe (2003) Pulsed dischargenozzle cavity ring down spectroscopy of cold PAH ions J. Chem. Phys., 118, 7863-7872. [PDF]

Mattioda, A. L., Hudgins, D. M., Bauschlicher, Jr., C. W., Rosi, M., Allamandola, L. J. (2003). Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbons, 6. Polycyclic Aromatic Nitrogen Heterocycles and their Cations. J. Phys Chem A, 107, 1486-1498. [PDF]

Gudipati, M. S. Dworkin, J. P., Chillier, X. D. F. & Allamandola, L. J. Luminescence from VUV irradiated cosmic ice analogs and residues. Astrophys. J., 583, 514-523. [PDF]

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

Ehrenfreund, P., J. Cami, J. Jimenez-Vicente, B. Foing, L. Kaper, A. Van Der Meer, N. Cox, L.d'Hendecourt, J. Maier, F. Salama, P. Sarre, T. Snow and P. Sonnentrucker (2002). Carbon Chemistry and the Diffuse Interstellar Bands in the MagellanicClouds Astrophys. J., 576, L117-L120. [PDF]

Ruiterkamp, R., T. Halasinski, F. Salama, B. Foing, L. J. Allamandola, W. Schmidt and P. Ehrenfreund (2002). Spectroscopy of large PAHs. Laboratory studies and comparison to the DiffuseInterstellar Bands Astron. & Astrophys., 390, 1153-1170. [PDF]

Chillier, X. D. F., Stone, B. M., Joblin, C., Salama, F., & Allamandola, L. J. (2002). D1 (2B2g) –> D0 (2Au) Fluorescence From the Matrix-Isolated Perylene Cation Following Laser Excitation into the D5 (2B3g) and D2 (2B3g) Electronic States. J. Chem. Phys., 116 5725-5730. [PDF]

Pendleton, Y.J. and Allamandola, L.J. (2002). The Organic Refractory Material in the Diffuse Interstellar Medium:Mid-IR Spectroscopic Constraints. Astrophys J. Supp. Ser., 138, 75-98. [interactive 3-D] [PDF]

Biennier, L., F. Salama, L.J. Allamandola, J. J. Scherer and A. O'Keefe (2002) "Gas Phase Spectroscopy of Cold PAH Ions: Contribution to the Interstellar Extinction and the Diffuse Interstellar Bands." in NASA Laboratory Astrophysics Workshop, F. Salama editorNASA Conference Proceedings, NASA STI, NASA-Ames Research Center Vol.211863, 113. [Link to abstracts]

Ruiterkamp, R., T. Halasinski, F. Salama, P. Ehrenfreund, Bernard H. Foing and W. Schmidt (2002) "ORGANICS on the International Space Station: Evolution of Organic Matter in Space" in NASA Laboratory Astrophysics Workshop, F. Salama editor NASA Conference Proceedings, NASA STI, NASA-Ames Research Center Vol.211863, 149. [Link to abstracts]

Chillier, X., Boulet, P.,Chermette, H.,Salama, F., and Weber, J. (2001) Absorption and Emission Spectroscopy of Matrix-Isolated Benzo[g,h,i] Perylene. An Experimental and Theoretical Study for Astrochemical Applications J. Chem. Phys., 115, 1769-1776. [PDF]

Hony, S., Van Kerckhoven, C., Peeters, E., Tielens, A. G. G. M., Hudgins, D. M., & Allamandola, L. J. (2001). The CH out-of-plane bending modes of PAH molecules in astrophysical environments. Astron. Astrophys., 370, 1030-1043. [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]

Salama, F. (2001). Molecular Spectroscopy in Astrophysics: The Case of Polycyclic Aromatic Hydrocarbons. J. Molec. Struct., 563, 19

Salama, F. & Bauschlicher, C. W. eds. (2001). Molecular Spectroscopy in Astrophysics. Special issue, Spectrochimica Acta: A , 57, 613 - 614. [PDF] [Table of contents]

Biennier, L., Romanini, D., Kachanov, A., Campargue, A., Bussery-Honvault, B. & Bacis, R. (2000) Structure and rovibrational analysis of the [O2(1\Deltag)v=0]2 <- [O2(3\Sigmag- )v=0]2transition of the O2 dimer. J. Chem. Phys.112, 6309. [PDF]

Booth, J.P., Cunge, G., Biennier, L., & Romanini, D. (2000) Ultraviolet Cavity Ring-Down Spectroscopy of Etching Plasmas. Chem. Phys. Lett. 317, 631. [PDF]

Halasinski, T, Hudgins, D. M., Salama, F., Allamandola, L. J., & Bally, T. (2000). Electronic Absorption Spectra of Neutral Pentacene (C22H14-) and its Positive and Negative Ions in Ne, Ar, and Kr Matrices. J. Phys. Chem. 104, 7484-7491. [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]

Sandford, S., Greene, T. P., Allamandola, L., Arno, R., Bregman, J., Cox, S., Davis, P. K., Gonzales, A., Haas, M., Hanel, R., Hines, M., Hudgins, D., Jackson, R. , Kittel, P., Lozier, D., Maa, S., & McCreight, C. (2000). An Explorer-class Astrobiology Mission. In "UV, Optical, and IR Space Telescopes and Instruments," eds. J. B. Breckinridge & P. Jakobsen, Proc. SPIE 4013, pp. 604-615.

Van Kerckhoven, C., Hony, S., Peeters, E., Tielens, A. G. G. M., Allamandola, L. J., Hudgins, D. M.,Cox, P., Roelfsema, P. R., Voors, R., Waelkens, C., Waters, R., & Wesselius, P. R. (2000). The CCC Bending Modes of PAHs: A New Emission Plateau from 15 to 20 µm. Astron. Astrophys. 357, 1013-1019. [PDF]

Bauschlicher, Jr., C. W., Hudgins, D. M., & Allamandola, L. J. (1999). The Infrared Spectra of Polycyclic Aromatic Hydrocarbons Containing a Five-Membered Ring: Symmetry Breaking and the B3LYP Functional. Theor. Chem. Acc. 103, 154-162. [PDF]

Bernstein, M. P., & Sandford, S. A. (1999). Variations in the Strength of the Infrared Forbidden 2328.2 cm-1 Fundamental of Solid N2 in Binary Mixtures. Spectrochimica Acta A 55, 2455-2466. [PDF]

Campargue, A., Biennier, L., Garnache, A., Kachanov, A., Romanini, D. & Herman, M. (1999) High Resolution absorption Spectroscopy of the V1=2-6 acetylenic overtone of propyne: spectroscopy and dynamics. J. Chem. Phys. 111, 7888. [PDF]

Chillier, X. D. F., Stone, B. M., Salama, F., & Allamandola, L. J. (1999). First Detection of an Ultraviolet Transition in an Ionized Polycyclic Aromatic Hydrocarbon. Letter to the Editor, J. Chem. Phys. 111, 449-451. [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]

Joblin, C., Salama, F., & Allamandola, L. J. (1999). Absorption and Emission of Perylene (C20H12) isolated in Ne, Ar, and N2 Matrices. J. Chem. Phys. 110, 7287-7297. [PDF]

Pendleton, Y. J., Tielens, A. G. G. M., Tokunaga, A. T., & Bernstein, M. P. (1999). The Interstellar 4.62 Micron Band. Astrophys. J. 513, 294-304. [PDF]

Romanini, D., Biennier, L. Salama, F., Kachinov, A. Allamandola, L. J., & Stoeckel, F. (1999). Jet-Discharge Cavity Ring-down Spectroscopy of Ionized Polycyclic Aromatic Hydrocarbons: Progress in Testing the PAH Hypothesis for the Diffuse Interstellar Band Problem. Chem. Phys. Lett. 303, 165-170. [PDF]

Sloan, G. C., Hayward, T. L., Allamandola, L. J., Bregman, J. D., DeVito, B., & Hudgins, D. M. (1999). Direct Spectroscopic Evidence for Ionized Polycyclic Aromatic Hydrocarbons in the Interstellar Medium. Astrophys. J. (Letters) 513, L65-L68. [PDF]

Biennier, L. & Campargue, A.(1998) High Resolution Spectrum of the (3-0) band of the b1\Sigmag- - X3\Sigmag- Red Atmospheric System of Oxygen. J. Mol. Spectrosc., 188, 248-250.

Campargue, A. , Biennier, L. & Herman, M. (1998) The visible absorption spectrum of 12C2H2: (III) The region 14500-17000 cm-1. Mol. Phys., 93, 457-469.

Campargue, A., Biennier, L., Kachanov, A., Jost, R., Bussery-Honvault, B., Veyret, V., Churassy, S., & Bacis, R. (1998) Rotationally resolved absorption spectrum of the O2 dimer in the visible range. Chem. Phys. Lett. 289, 734-742.

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]

Lacy, J. H., Faraji, H., Sandford, S. A., & Allamandola, L. J. (1998). Unraveling the 10 µm 'Silicate' Feature of Protostars: The Detection of Frozen Interstellar Ammonia. Astrophys. J. (Letters) 501, L105-L109. [PDF]

Langhoff, S. R., Bauschlicher, Jr., C. W., Hudgins, D. M., Sandford, S. A., & Allamandola, L. J. (1998). Infrared spectra of substituted polycyclic aromatic hydrocarbons. J. Phys. Chem. A 102, 1632-1646. [PDF]

Mattioda, A., & Frech, R. (1998) Vibrational Spectra, Thermal Analysis and Conductivity of the Phases of Ammonium Hydrazinium (2+) Sulfate. J. Phys. Chem. Solids 59, 353.

Schnaiter, M.,Mutschke, H., Dorschner, J., Henning, Th., & Salama, F. (1998). Matrix-isolated nano-sized soot grains as an analogue for the 217.5 nm feature carrier. Astrophys. J. 498, 486-496. [PDF]

Allamandola, L. J. (1997). The Origin, Composition, and History of Comets from Spectroscopic Studies. In Analysis of Returned Comet Nucleus Samples, NASA CP-10152.

Bauschlicher, Jr., C. W., Langhoff, S. R., Sandford, S. A., & Hudgins, D. M. (1997). Infrared Spectra of Perdeuterated Naphthalene, Phenanthrene, Chrysene, and Pyrene. J. Phys. Chem. A 101, 2414-2422. [PDF]

Bernstein, M. P., Sandford, S. A., & Allamandola, L. J. (1997). The Infrared Spectra of Nitriles and Related Compounds Frozen in Ar and H2O. Astrophys. J. 476, 932-942. [PDF]

Elsila, J., Allamandola, L. J., and Sandford, S. A. (1997). The 2140 cm-1 (4.673 µm) Solid CO Band: The Case for Interstellar O2 and N2 and the Photochemistry of Non-Polar Interstellar Ice Analogs. Astrophys. J. 479, 818-838. [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]

Mattioda, A., & Frech, R. (1997) Vibrational Frequencies of Partially Deuterated Hydrazinium (2+) Sulfate. Spectrochimica Acta Part A, 53, 1767.

Sloan, G. C., Bregman, J. D., Geballe, T. R., Allamandola, L. J., & Woodward, C. E. (1997). Variations in the 3 µm Spectrum Across the Orion Bar; PAHs and Related Molecules. Astrophys. J. 474, 735-740. [PDF]

Yang, S., Biennier, L., Campargue, A., Abbouti Temsamani, M., & Herman, M. (1997). The absorption spectrum of acetylene between 12800 and 18500 cm-1: (II) Rotational analysis, Mol. Phys. 90, 807-816.

Bernstein, M. P., Sandford, S. A., & Allamandola, L. J. (1996). Hydrogenated Polycyclic Aromatic Hydrocarbons (Hn-PAHs) and the 2940 and 2850 Wavenumber (3.40 and 3.51 Micron) Infrared Emission Features. Astrophys. J. 472, L127-L130. [PDF]

Joblin, C., Tielens, A. G. G. M., Allamandola, L. J., & Geballe, T. R. (1996). Spatial Variation of the 3.29 and 3.4 Micron Emission Bands within Reflection Nebulae and the Photochemical Evolution of Methylated Polycyclic Aromatic Hydrocarbons. Astrophys J. 458, 610-620. [PDF]

Roelfsema, P. R., Cox, P., Tielens, A. G. G. M., Allamandola, L. J., Baluteau, J.-P., Barlow, M., Beintema, D., Boxhoorn, D., Cassinelli, J. P., Caux, E., Churchwell, E., Clegg, P. E., de Graauw, T., Heras, A. M., Huygen, R., van der Hucht, K., Hudgins, D. M., Kessler, M., Lim, T., & Sandford, S. A. (1996). SWS Observation of IR Emission Features Towards Compact HII Regions. Astron. Astrophys. 315, L289-L292. [PDF]

Salama, F. (1996). Low Temperature Molecular Spectroscopy: From Ground to Space. In Low Temperature Molecular Spectroscopy, ed. R. Fausto, NATO/ASI Series, Series C: Mathematical and Physical Sciences, Kluwer Academic Publishers, Vol. 483, p. 169.

Salama, F. (1996). Neutral and Ionized PAH Spectral Properties. Implications for the Ultraviolet-Visible Interstellar Extinction. In The Cosmic Dust Connection, ed. J. M. Greenberg, NATO/ASI Series, Kluwer Academic Publishers, p. 103.

Sellgren, K., Werner, M. W., & Allamandola, L. J. (1996). A Survey of Near Infrared Emission in Visual Reflection Nebulae. Astrophys J. Supp. Ser. 102, 369-382.

Tielens, A. G. G. M., Wooden, D. H., Allamandola, L. J., Bregman, J., & Witteborn, F. C. (1996). The 5-8 µm Infrared Spectrum of the Galactic Center and the Composition of Interstellar Dust. Astrophys. J. 461, 210-222. [PDF]

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.

Joblin, C., Salama, F., & Allamandola, L. J. (1995). Photoinduced Fluorescence from the Perylene Cation Isolated in Ne and Ar Matrices. J. Chem. Phys. 102, 9743-9745. [PDF]

Joblin, C., Salama, F., & Allamandola, L. J. (1995). Visible Luminescence from PAH Cations and the Diffuse Bands in Emission. In The Diffuse Interstellar bands, eds. A. G. G. M. Tielens & T. P. Snow, Kluwer Academic Publishers, p. 157.

Mattioda, A. (1995) Vibrational and Thermal Characterization of Hydrazinium Sulfate and Ammonium Hydrazinium Sulfate, Dissertation, Research Advisor - Roger Frech.

Mattioda, A., & Frech, R. (1995) Vibrational Modes of Hydrazine Sulfate and Deuterium-Substituted Single Crystals, Spectrochimica Acta Part A 51, 2545.

Salama, F., Allamandola, L.J., Sandford, S.A., Bregman, J.D., Witteborn, F.C., & Cruikshank, D.P. (1995). The Detection of a New Strong Band Near 3590 cm-1 (2.79 µm) in the Spectrum of Io. In Airborne Astronomy Symposium on the Galactic Ecosystem: From Gas to Stars to Dust, eds. M.R. Haas, J.A. Davidson, & E.F. Erickson, Astronomical Society of the Pacific Conference Series, Vol. 73, pp. 337-340.

Salama, F., Joblin, C., & Allamandola, L. J. (1995). Absorption Spectroscopy of Neutral and Ionized PAHs. Implications for the Diffuse Interstellar Bands. In The Diffuse Interstellar Bands, eds. A. G. G. M. Tielens & T. P. Snow, Klüwer Academic Publishers, p. 207.

Salama, F., Joblin, C., & Allamandola, L. J. (1995). Neutral and Ionized PAHs. Contribution to the Interstellar Extinction. Planet. Space Sci. 43, No. 10/11, 1165. [PDF]

Sandford, S.A., Pendleton, Y.J., & Allamandola, L.J. (1995). The Galactic Distribution of Aliphatic Hydrocarbons in the Diffuse Interstellar Medium. Astrophys. J. 440, 697-705. [PDF]

Schutte, W.A., Allamandola, L.J., & Sandford, S.A. (1995). Very Low Temperature Formaldehyde Reactions and the Build-up of Organic Molecules in Comets and Interstellar Ices. Advances in Space Research 15(#3), (3)401-(3)406. [PDF]

1994

Bernstein, M.P., Sandford, S.A., Allamandola, L.J., & Chang, S. (1994). Infrared Spectrum of Matrix-Isolated Hexamethylenetetramine in Ar and H2O at Cryogenic Temperatures. J. Phys. Chem. 98, 12206-12210.

Bohn, R.B., Sandford, S.A., Allamandola, L.J., & Cruikshank, D.P. (1994). Infrared Spectroscopy of Triton and Pluto Ice Analogs: The Case for Saturated Hydrocarbons. Icarus 111, 151-173.

Gehrz, R.D., Woodward, C.E., Greenhouse, M.A., Starrfield, S., Wooden, D.H., Witteborn, F.C., Sandford, S.A., Allamandola, L.J., Bregman, J.D., & Klapisch, M. (1994). The Temporal Evolution of the 4-14 Micron Spectrum of V1974 Cygni (Nova Cygni 1992). Astrophys. J. 421, 762-770. [PDF]

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.)

Pendleton, Y.J., Sandford, S.A., Allamandola, L.J., Tielens, A.G.G.M., & Sellgren, K. (1994). Near Infrared Absorption Spectroscopy of Interstellar Hydrocarbon Grains. Astrophys. J. 437, 683-696. [PDF]

Salama, F., & Allamandola, L. (1994). PAHs, DIBs and Interstellar Extinction. In The First Symposium on the Infrared Cirrus and Diffuse Interstellar Clouds, eds. R. M. Cutri & W. B. Latter, (San Francisco: ASP), ASP Conference Series Vol. 58, p. 279.

Salama, F. Joblin, C., & Allamandola, L. J. (1994). Electronic Absorption Spectroscopy of Matrix-Isolated Polycycic Aromatic Hydrocarbon Cations. II. The Phenanthrene Cation (C14H10+) and its 1-Methyl Derivative. J. Chem. Phys. 101, 10252-10262. [PDF]

Sandford, S.A., Geballe, T.R., Salama, F., & Goorvitch, D. (1994). New Narrow Infrared Absorption Features in the Spectrum of Io Between 3600 and 3100 cm-1 (2.8-3.2 µm). Icarus 110, 292-302.

Allamandola, L. J. (1993). ISO, Dust and PAHs. In Astronomical Infrared Spectroscopy: Future Observational Directions, ed. S. Kwok, Ast. Soc. Pac. Conf. Ser. 41, 197-206.

Bregman, J., Rank, D., Sandford, S.A., & Temi, P. (1993). Spectral Imaging of the 3.3 and 11.3 µm Emission Bands in NGC 1333: Discovery of Spatially Separate Band Emissions. Astrophys. J. 410, 668-672. [PDF]

Bregman, J. D., Rank, D., Temi, P., Hudgins, D. M., & Kay, L. (1993). 3.3 and 11.3 µm Images of HD44179: Evidence for an Optically Thick Polycyclic Aromatic Hydrocarbon Disk. Astrophys. J. 411, 794. [PDF]

Du, P., Salama, F., & Loew, G. H. (1993). Theoretical Study on the Electronic Spectra of a Polycyclic Aromatic Hydrocarbon, Naphthalene, and its Derivatives. Chem. Phys. 173, 421. [PDF]

Frech, R. Mattioda, A., & Huang, E. (1993) Structure and Vibrational Spectra of Ammonium Hydrazinium Sulfate, J. Molec. Struct. 295,121.

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)]

Romesberg, F. E., Bernstein, M. P., Gilchrist, J. H., Fuller, D. J., Harrison, A. T., & Collum, D. B. (1993). On the Structure of Lithium Hexamethyldisilazide (LiHMDS) in the Presence of Hexamethylphosphoramide (HMPA). Spectroscopic and Computational Studies of Monomers, Dimers, and Triple Ions. J. Amer. Chem. Soc. 115, 3475.

Salama, F. & Allamandola, L. J. (1993). Neutral and Ionized PAHs, The Diffuse Interstellar Bands, and the Ultraviolet Extinction Curve. J. Chem. Soc. Faraday Trans. 89, 2277-2284.

Sandford, S.A. (1993). The Mid-Infrared Transmission Spectra of Antarctic Ureilites. Meteoritics 28, 579-585. [PDF]

Sandford, S. A., & Allamandola, L. J. (1993). H2 in Interstellar and Extragalactic Ices: Infrared Characteristics, UV Production, and Implications. Astrophys. J. 409, L65-L68. [PDF]

Sandford, S. A., Allamandola, L. J., & Geballe, T. R. (1993). Spectroscopic Detection of Molecular Hydrogen Frozen in Interstellar Ices. Science 262, 400-402. [revision published in Geballe, T. R., Sandford, S. A., & Allamandola, L. J. (2000). Science 287, 976.]

Schutte, W. A., Tielens, A. G. G. M., & Allamandola, L. J. (1993). Theoretical Modelling of the Infrared Fluorescence from Interstellar Polycyclic Aromatic Hydrocarbons. Astrophys. J. 415, 397-414. [PDF]

Tegler, S.C., Weintraub, D.A., Allamandola, L.J., Sandford, S.A., Rettig, T.W., & Campins, H. (1993). Detection of the 2165 cm-1 (4.619 µm) XCN Band in the Spectrum of L1551 IRS 5. Astrophys. J. 411, 260-265. [PDF]

Allamandola, L. J. (1992). Grain Spectroscopy. In Astrochemistry of Cosmic Phenomena, ed. P. D. Singh (Kluwer, Dordrecht), 65-72.

Allamandola, L.J., Sandford, S.A., Tielens, A.G.G.M., & Herbst, T.M. (1992). Spectroscopy of Dense Clouds in the C-H Stretching Region: Methanol and "Diamonds". Astrophys. J. 399, 134-146. [PDF]

Salama, F. & Allamandola, L. J. (1992). Is a Pyrene-Like Molecular Ion Responsible for the 4430 Å Diffuse Interstellar Band? Nature 358, 42-43.

Salama, F. & Allamandola, L. J. (1992). The Ultraviolet and Visible Spectrum of the PAH C10H8+: Possible Contributions to the Diffuse Interstellar Bands and to the UV-Visible Extinction.. Astrophys. J. 395, 301-306. [Abstract] [PDF]

Salama, F., & Allamandola, L. J. (1992). UV-Visible and Near IR Absorption Characteristics of Interstellar PAHs. I. C12H8+. In Astrochemistry of Cosmic Phenomena , ed. P. D. Singh, Klüwer Academic Publishers) p. 25.

Salama, F. & Allamandola, L. J. (1991). Electronic Absorption Spectroscopy of Matrix-Isolated Polycycic Aromatic Hydrocarbon Cations. I. The Naphthalene Cation (C10H8+). J. Chem. Phys. 94, 6964-6977. [PDF]

Salama, F., & Allamandola, L. J. (1991). The Role of Matrix Material and CCl4 on the Ionization Mechanisms of Matrix-Isolated Naphthalene. J. Chem. Phys. 95, 6190-6191. [PDF]

Sandford, S.A. (1991). The Spectrum of NGC 7027 from 3080 to 2630 cm-1 (3.25-3.80 µm): Detection of New Atomic and Molecular Hydrogen Lines and New Constraints on the Chemical Sidegroups on PAHs. Astrophys. J. 376, 599-607. [PDF]

Sandford, S.A., Allamandola, L.J., Tielens, A.G.G.M., Sellgren, K., Tapia, M., & Pendleton, Y. (1991). The Interstellar C-H Stretching Band near 3.4 µm: Constraints on the Composition of Organic Material in the Diffuse Interstellar Medium. Astrophys. J. 371, 607-620. [PDF]

Sandford, S.A., Salama, F., Allamandola, L.J., Trafton, L.M., Lester, D.F., & Ramseyer, T.F. (1991). Laboratory Studies of the Newly Discovered Infrared Band at 4705.2 cm-1 (2.1253 µm) in the Spectrum of Io: The Tentative Identification of CO2. Icarus 91, 125-144.

Schutte, W.A., Tielens, A.G.G.M., & Sandford, S.A. (1991). 10 µm Spectra of Protostars and the Solid Methanol Abundance. Astrophys. J. 382, 523-529. [PDF]

Trafton, L.M., Lester, D.F., Ramseyer, T.F., Sandford, S.A., Salama, F., & Allamandola, L.J. (1991). A New Class of Absorption Feature in Io's Near-Infrared Spectrum. Icarus 89, 264-276.

Buss Jr., R.H., Cohen, M., Tielens, A.G.G.M., Werner, M.W., Bregman, J.D., Witteborn, F.C., Rank, D., & Sandford, S.A. (1990). Hydrocarbon Emission Features in the IR Spectra of Warm Supergiants. Astrophys. J. 365, L23-L26. [PDF]

Salama, F., Allamandola, L.J., Witteborn, F.C., Cruikshank, D.P., Sandford, S.A., & Bregman, J.D. (1990). The 2.5-5.0 µm spectra of Io: Evidence for H2S and H2O Frozen in SO2. Icarus 83, 66-82.

Salama, F., Allamandola, L.J., Witteborn, F.C., Cruikshank, D.P., Sandford, S.A., & Bregman, J.D. (1990). The 2.5-5.0 µm Spectra of Io: Evidence for H2S and H2O Frozen in SO2. In Proceedings of the 24th ESLAB Symposium on the Formation of Stars and Planets, and the Evolution of the Solar System, Friedrichshafen, 17-19 Sept. 1990, ESA SP-315, pp. 203-208.

Schutte, W. A., Tielens, A. G. G. M., Allamandola, L. J., Cohen, M. & Wooden, D. H. (1990). The Anomalous 3.43 and 3.53 mm Emission Features Towards HD97048 and Elias I: C-C Vibrational Modes of PAHs? Astrophys. J. 360, 577-589. [PDF]

Allamandola, L. J. (1989). The Infrared Emission Features and Polycyclic Aromatic Hydrocarbons. In Interstellar Dust, eds. L. J. Allamandola & A. G. G. M. Tielens (Kluwer, Dordrecht), 129-139.

Allamandola, L.J., Bregman, J.D., Sandford, S.A., Tielens, A.G.G.M., Witteborn, F.C., Wooden, D.H., & Rank, D. (1989). The Discovery of a New Infrared Emission Feature at 1905 Wavenumbers (5.25 Microns) in the Spectrum of BD +30°3639 and its Relation to the Polycyclic Aromatic Hydrocarbon Model. Astrophys. J. 345, L59-L62. [PDF]

Allamandola, L. J., Tielens, A. G. G. M., & Barker, J. R. (1989). Interstellar Polycyclic Aromatic Hydrocarbons: the Infrared Emission Bands, the Excitation-Emission Mechanism and the Astrophysical Implications. Ap.J. Suppl. Ser. 71, 733-775. [PDF]

Bregman, J. D., Allamandola, L. J., Tielens, A. G. G. M., Geballe, T. R., & Witteborn, F. C. (1989). The Infrared Emission Bands II: A Spatial and Spectral Study of the Orion Bar. Astrophys. J. 344, 791-798. [PDF]

Cohen, M., Tielens, A. G. G. M., Bregman, J. D., Witteborn, F. C., Rank, D. M., Allamandola, L. J., Wooden, D., & de Muizon, M. (1989). The Infrared Emission Bands III: Southern IRAS Sources. Astrophys. J. 341, 246-269. [PDF]

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.

Krishna Swamy, K.S., Sandford, S.A., Allamandola, L.J., Witteborn, F.C., & Bregman, J.D. (1988). A multicomponent model of the infrared emission from Comet Halley. Icarus 75, 351-370.

Sandford, S.A. (1988). The spectral properties of collected interplanetary dust particles. In Dust in the Universe, eds. M. E. Bailey & D. A. Williams, (Cambridge Univ. Press: Cambridge), pp. 193-198.

Sandford, S.A., Allamandola, L.J., Tielens, A.G.G.M., & Valero, G. (1988). Laboratory studies of the infrared spectral properties of CO in astrophysical ices. Astrophys. J. 329, 498-510. [PDF]

Allamandola, L. J. (1987). Discussion II: Interpretation of IR Observations. In Polycyclic Aromatic Hydrocarbons and Astrophysics, eds. A. Leger & L. B. d'Hendecourt, (D. Reidel: Dordrecht), 339.

Allamandola, L. J. (1987). Interstellar Problems and Matrix Solutions. J. Molec. Structure 157, 255, volume dedicated to Professor G. C. Pimentel.

Allamandola, L. J., Tielens, A. G. G. M., & Barker, J. R. (1987). Infrared Absorption and Emission Characteristics of Interstellar PAHs. In Interstellar Processes, eds. D. Hollenbach & H. Thronson, (D. Reidel: Dordrecht), 471.

Allamandola, L. J., Tielens, A. G. G. M., & Barker, J. R. (1987). Infrared Emission From Interstellar PAHs. In Physical Processes in Interstellar Clouds, eds. G. Morfill & M. Scholer (D. Reidel: Dordrecht), pp. xx-xx.

Allamandola, L. J., Tielens, A. G. G. M., & Barker, J. R. (1987). The IR Emission Features: Emission from PAH Molecules and Amorphous Carbon Particles. In Polycyclic Aromatic Hydrocarbons and Astrophysics, eds. A. Leger & L. B. d'Hendecourt, (D. Reidel: Dordrecht), 255.

Barker, J. R., Allamandola, L. J., & Tielens, A. G. G. M. (1987). Anharmonicity and the Interstellar Polycyclic Aromatic Hydrocarbon Infrared Emission Spectrum. Astrophys. J. 315, L61-65. [PDF]

Bregman, J. D., Campins, H., Witteborn, F. C., Wooden, D., Rank, D. M., Allamandola, L. J., Cohen, M., & Tielens, A.G.G.M. (1987). Airborne and Ground-Based Spectrophotometry of Comet Halley from 5-13 Micrometers. Astron. Astrophys. 187, 616-620. [PDF]

Raksit, A. B., Hudgins, D. M., Buchau,S., & Porter, R. F. (1987). Experimental Evidence for the Imino Methyl Radical by Neutralized Ion Beam Spectroscopy. Rap.Comm.Mass Spectrom. 1(4), 57.

Cohen. M., Allamandola, L. J., Tielens, A. G. G. M., Bregman, J., Simpson, J., Witteborn, F. C., D. Wooden, & D. Rank (1986). The Infrared Emission Bands I: Correlation Studies and the Dependence on Nebular C/O Ratio. Astrophys. J. 302, 737-749. [PDF]

d'Hendecourt, L. B., & Allamandola, L. J. (1986). Infrared Band Cross Sections of Molecules in the Solid State at 10K. Astron. Astrophys. Suppl. Ser. 64, 453-467. [PDF]

Fournier, P. G., Fournier, J., Salama, F., Stark, D., Peyerimhoff, S. D., & Eland, J. H. D. (1986). Theoretical and Experimental Studies on the Electronic State of the Diatomic Cation Cl2++. Phys. Rev. A. 34, 1657. [PDF]

Sandford, S. A. (1986). Acid dissolution experiments: Carbonates and the 6.8 micron bands in interplanetary dust particles. Science 231, 1540-1541.

van IJzendoorn, L. J., Allamandola, L. J., Baas, F., Kornig, S., & Greenberg, J. M. (1986). Laser Induced Fluorescence and Phosphorescence of Matrix Isolated Glyoxal: Evidence for Exciplex Formation in the A1Au and a3Au States. J. Chem. Phys. 85, 1812.

Cohen. M., Tielens, A. G. G. M., & Allamandola, L. J. (1985). A New Emission Feature in IRAS Spectra and the Polycyclic Aromatic Hydrocarbon Spectrum. Astrophys. J. 299, L93-L97. [PDF]

Fournier, P. G., Fournier, J., Salama, F., Richardson, P. J., & Eland, J. H. D. (1985). Formation and Dissociation of Doubly Ionized Methane. J. Chem. Phys. 83, 241.

Fournier, J., Salama, F., Deson, J., & Le Roy, R. J. (1985). Ultraviolet Photolysis and Internal Dynamics of Cl2 in a Rare Gas Matrix at 4.2 K. In Photophysics and Photochemistry Above 6 eV, ed. F. Lahmani, Elsevier Science Publ. B.V., Amsterdam, p. 439.

Fournier, J., Salama, F., & Le Roy, R. J. (1985). Ultraviolet Photolysis and Dynamics of Cl2 in an Argon Matrix at 4.2 K. J. Phys. Chem. 89, 3530.

Salama, F., & Fournier, J. (1985). Determination of the Lowest Bound Ionic State Threshold of Cl2 Trapped in Solid Argon at 4.5 K Using Synchrotron Radiation. Chem. Phys. Lett. 120, 35.

Sandford, S. A. (1985). Laboratory infrared transmission spectra from 2.5 to 25 microns of individual interplanetary dust particles. Ph.D. thesis in Physics, Washington University, St. Louis, MO.

Sandford, S. A., & Walker, R. M. (1985). Laboratory infrared transmission spectra of individual interplanetary dust particles from 2.5 to 25 microns. Astrophys. J. 291, 838-851. [PDF]

Sellgren, K., Allamandola, L. J., Bregman, J. D., M.W. Werner, & D.H. Wooden (1985). The 4-13 Micron Spectrum of the Reflection Nebulae NGC 7023 and NGC 2023. Astrophys. J. 299, 416. [PDF]

Van der Zwet, G. P., Allamandola, L. J., Baas, F., & Greenberg, J. M. (1985). Laboratory Identification of the Emission Features Near 3.5 mm in the Pre-Main-Sequence Star HD97048. Astron. Astrophys. 145, 262-268. [PDF]

Allamandola, L. J. (1984). Absorption and Emission Characteristics of Interstellar Dust. In XVIth ESLAB Symposium on Galactic and Extragalactic Infrared Spectroscopy, eds. M. Kessler & P. Phillips (D. Reidel: Dordrecht), p.5.

Lacy, J. H., Baas, F., Allamandola, L. J., Van de Bult, C. E. P. M.,Persson, S. E., McGregor, P. J., Lonsdale, C. J., & Geballe, T. R. (1984). 4.6 mm Absorption Features due to Solid Phase CO and Cyano Group Molecules toward Compact Infrared Sources. Astrophys. J. 276, 533-543. [PDF]

Sandford, S. A. (1984). Infrared transmission spectra from 2.5 to 25 microns of various meteorite classes. Icarus 60, 115-126.

Tielens, A. G. G. M., Allamandola, L. J., Bregman, J. D., J. Goebel, d'Hendecourt, L. B., & Witteborn, F. C. (1984). Absorption Features in the 5-8 Micron Spectra of Protostars. Astrophys. J. 287, 697.

Baas, F., Allamandola, L. J., Geballe, T. R., Persson, S. E., & Lacy, J. H. (1983). Identification of the 3.5 mm Emission Feature in the Pre-Main-Sequence Star HD-97048. Astrophys. J. 265, 290. [PDF]

Clegg, R. E. S., van IJzendoorn, L. J., & Allamandola, L. J. (1983). Circumstellar Silicon Chemistry and the SiO Maser. Mon. Not. R. Astron. Soc. 203, 125-146. [PDF]

Fournier, J., Salama, F., Deson, J., & Le Roy, R. J. (1983). Emission from 3g state of Cl2 trapped in a rare gas rigid matrix at 4.2 K. Bull. Soc. Chim. Belg. 92, 670 .

van IJzendoorn, L. J., Allamandola, L. J., Baas, F., & Greenberg, J. M. (1983). Visible Absorption Spectroscopy of Matrix Isolated HCO: the 2A(p)¨ X2A' Transition. J. Chem. Phys. 78, 7017.

Hamilton, C. E., Lesiecki, M. L., Allamandola, L. J., & Nibler, J. W. (1982). Spectroscopy and Triplet State Lifetime for Yttrium Fluoride (YF) in Inert Gas Matrices. J. Chem. Phys. 76, 189.

Hanson, K. M., Bradbury, J. N., Koeppe, R. A., Macek, R. J., Machen, D. R., Morgado, R., Paciotti, M. A., Sandford, S. A., & Steward, V. W. (1982). Proton computed tomography of human specimens. Phys. Med. Biol. 27, no. 1, 25-36.

Lucas, D., Allamandola, L. J., & Pimentel, G. C. (1982). Matrix Isolation Infrared Spectra of Hydrogen Halide and Halogen Complexes with Nitrosyl Halide. Croat. Chem. Acta 55, 121.

McGregor, P. J., Persson, S. E., Lacy, J. H., Baas, F., Allamandola, L. J., Lonsdale, C. J., & Geballe, T. R. (1982). 4.6 mm Absorption Features due to Solid Phase CO toward Compact Infrared Sources. XVIth Eslab Symposium, Galactic and Extra-galactic Infrared Spectroscopy. (ESTEC Reproduction Services, Noordwijk, Holland), 51.

Paciotti, M., Bradbury, J., Inoue, H., Rivera, O., & Sandford, S. (1981). Beam characteristics in the LAMPF biomedical channel. IEEE Trans. Nucl. Sci. (USA), Vol. ns-28, no. 3, pt. b, 3150-3152.

Allamandola, L. J., Greenberg, J. M., Norman, C. A., & Hagen, W. (1980). The Chemical Identification of Grain Mantles by Infrared Spectroscopy. In IAU Symp. 87: Interstellar Molecules, ed. B.H. Andrew (D. Reidel: Dordrecht) p. 373.

Hagen, W., Allamandola, L. J., & Greenberg, J. M. (1980). Infra-red Absorption Lines by Molecules in Grain Mantles. Astron. Astrophys., 86, L3.

Hagen, W., Allamandola, L. J., Greenberg, J. M., & Tielens, A. G. G. M. (1980). Interstellar Matrices J. Mol. Struct. 80, 281.

Van de Bult, C. E. P. M., Allamandola, L. J., F. Baas, L.J. van IJzendoorn, & Greenberg, J. M. (1980). Chemiluminescence of N2, NH and O2 in Argon Matrices. J. Mol. Struct. 61, 235.

Paciotti, M., Amols, H., Bradbury, J., Rivera, O., Hogstrom, K., Smith, A., Inoue, H., Laubacher, D., & Sandford, S. (1979). Pion beam development for the LAMPF biomedical project. IEEE Trans. Nucl. Sci. (USA), Vol. ns-26, no. 3, pt. a, 3071-3073.

Allamandola, L. J., Lucas, D., & Pimentel, G. C. (1978). Synchronized Flash Photolysis and Pulse Deposition in Matrix Isolation Experiments. Rev. Sci. Inst. 49, 913.

Allamandola, L. J., & Norman, C. A. (1978). Infra-Red Emission Lines from Molecules in Grain Mantles. Astron. Astrophys. 63, L23-26. [PDF]

Allamandola, L. J., & Norman, C. A. (1978). Infrared Molecular Line Emission from Grain Surfaces in Dense Clouds. Astron. Astrophys. 66, 129-135. [PDF]

Allamandola, L. J., Rojhantalab, H. M., Nibler, J. W. (1978). Vibrational Energy Transfer Studies of Matrix Isolated C2-. Ber. Bunsenges, Phys. Chem. 82, 126-128.

Rojhantalab, H. M., Allamandola, L. J., & Nibler, J. W. (1978). Flourescence Studies of Copper (II) Oxide in an Argon Matrix. Ber. Bunsenges. Phys. Chem. 82, 107.

Allamandola, L. J., Rojhantalab, H. M., Nibler, J. W., & Chappell, T. (1977). Vibrational Relaxation Studies of Matrix Isolated C2-. J. Chem. Phys. 67, 99.

Allamandola, L. J., & Nibler, J. W. (1976). Vibrational Spectra and Structure of Methylberyllium Borohydride. J. Am. Chem. Soc. 98, 2096.

Allamandola, L. J., & Nibler, J. W. (1974). Vibrational Lifetime Measurements of Matrix Isolated Molecules by an Optical "Double-Resonance" Method. Chem. Phys. Lett. 28, 335.