Emphasis on undergraduate courses, ranging from introductory level general
astronomy to upper-division astrophysics.
Development of multimedia and Internet applications for teaching, including
in-class presentations and WWW resources.
Writing of textbooks for physical sciences, especially introductory astronomy.
New book coming out in january, 1997: Universe: Origin and Evolution, by Snow
and Brownsberger (Wadsworth)
Research Interests:
Observational studies of the chemistry and physics of the diffuse interstellar
medium.
Analysis of the interaction between gas and dust, as indicated by depletion
studies (optical and UV) and by infrared solid-state absorption features.
Studies of interstellar dust extinction.
Observational and laboratory research on the diffuse interstellar bands.
Ground-based and space-based spectroscopy, in the UV, visible, and infrared
wavelength bands.
Recent Publications (2000-2002):
Barckholtz, C., Eichelberger, B., Bierbaum, V.M., and Snow,
T.P. 2002, "Cn·- and HCn- Reactions with Atoms of Interstellar
Interest: An Experimental Study", in preparation.
Cunningham, N.J., McCray, R.A., and
Snow, T.P. 2002, "Interstellar Abundance and Dust Grain Studies from X-ray
Spectroscopy and Imaging of X Persei/4U 0352+30", submitted.
Shuping, R.S., Morton, D.C., and Snow, T.P., 2002, "The CO/H2
Ratio for Interstellar Translucent Sightlines: A Study of GRHS Echelle-A Archival
Observations", Ap. J., submitted.
Snow, T.P., Zukowski, D., and Massey, P. 2002, "The Intrinsic
Profile of the 4430A Diffuse Interstellar Band: Strong Evidence for a Free
Molecular Origin", Ap.J., 578, 877-884.
Snow, T., Rachford, B., and Figoski, L. 2002, "Gas-Phase Iron Abundances
and Depletions in Translucent Interstellar Lines of Sight from Far Ultraviolet
Spectroscopic Explorer Observations of Fe II Lines", Ap.J., 573, 662-669.
Sonnentrucker, P., Friedman, S.D., Welty, D.E., York, D.G.,
and Snow, T.P. 2002, "Abundances and Physical Conditions in the Interstellar
Gas Toward HD 192639", Ap. J., 576, 241-254.
Snow, T.P., Welty, D.E., Thorburn, J., Hobbs, L.M., Oku,
T., McCall, B.J., York, D.G., and Sonnentrucker, P. 2002, "Unusually Weak
Diffuse Interstellar Bands toward HD 62542", Ap.J., 573, 670-677.
Rachford, B.L., Snow, T.P., Tumlinson, J., Shull, J.M., Blair,
W.P., Ferlet, R., Friedman, S.D., Gry, C., Jenkins, E.B., Morton, D.C., Savage,
B.D., Sonnentrucker, P., Vidal-Madjar, A., Welty, D.E., and York, D.G. 2001,
"A FUSE Survey of Interstellar Molecular Hydrogen in Translucent Clouds",
Ap.J., 577, 221-244.
Snow, T.P. 2002, "A Search for Fine Structure within the
4430A Diffuse Interstellar Band", Ap.J., 567, 407-411.
Tumlinson, J., Shull, J.M., Rachford, B.L., Browning, M.K.,
Snow, T.P., Fullerton, A.W., Jenkins, E.B., Savage, B.D., Crowther, P.A.,
Moos, H.W., Sembach, K.R., Sonneborn, G., and York, D.G. 2002, "A FUSE Survey
of Interstellar Molecular Hydrogen in the Small and Large Magellanic Clouds",
Ap.J., 566, 857-879.
Rachford, B., Snow, T., Tumlinson, J., Shull, M., Roueff,
E., Andre, M., Desert, J-M., Ferlet, R., Vidal-Madjar, A., and York, D. 2002,
"Far Ultraviolet Spectroscopic Explorer Observations of Molecular Hydrogen
in Translucent Interstellar Clouds. II. The Line of Sight Toward HD 110432",
Ap. J., 555, 839-849. 173.
Adelman, S.J., Snow, T.P., Wood, E.L., Evans, I.I., Sneden,
C., Ehrenfreund, P., Foing, B.H. 2001, "An Elemental Abundance Analysis of
the Mercury Manganese Star HD 29647", M.N.R.A.S., 328, 1144-1150.
Le Page, V., Snow, T.P., and Bierbaum, V. 2001, "Hydrogenation
and Charge States of PAHs in Diffuse Clouds I. Development of a Model", Ap.
J. Suppl., 132, 233-251.
Snow, T.P. 2001, "The Unidentified Diffuse Interstellar Bands
as Evidence for Large Organic Molecules in the Interstellar Medium", Spectrochimica
Acta, Part A, 57, 615-626.
Shuping, R.Y., Chiar, J.E., Snow, T.P., and Kerr, T. 2001,
"A Direct Measurement of the CO Depletion in the Elias 18 Circumstellar Disk",
Ap. J. Lett., 547, L161-164.
Barckholtz, C., Snow, T.P., and Bierbaum, V.M. 2001, "Reactions
of C-n and CnH- with Atomic And Molecular Hydrogen", Ap. J. Lett., 547, L171-174.
Shull, J. M., Tumlinson, J., Jenkins, E. B., Moos, H. W.,
Rachford, B. L., Savage, B. D., Sembach, K. R., Snow, T. P., Sonneborn, G.,
York, D. G., Blair, W. P., Green, J. C., Friedmann, S. D., and Sahnow, D.
J. 2000, "FUSE Observations of Diffuse Interstellar Molecular Hydrogen",
Ap. J. Lett., 538, L73-L76.
Ferlet, R., Andre, M., Hebrard, G., Lecavelier des Etangs,
A., Lemoine, M., Pineau des Forets, G., Roueff, E., Rachford, B.L., Shull,
J. M., Snow, T.P., Tumlinson, J., Vidal-Madjar, A., York, D.G., and Moos,
H.W. 2000, "FUSE Observations of the HD Molecule Toward HD 73882", Ap. J.
Lett., 538, L69-L72.
Snow, T. P., Rachford, B.L., Tumlinson, J., Shull, J. M.,
Welty, D.E., Blair, W.P., Ferlet, R., Friedman, S.D., Gry, C., Jenkins, E.B.,
Lecavelier, A., Lemoine, M., Morton, D.C., Savage, B.D., Sembach, K.R., Vidal-Madjar,
A., York, D.G., Andersson, B-G., Feldman, P.D., and Moos, H.W. 2000, "FUSE
Observations of Molecular Hydrogen in Translucent Interstellar Clouds: The
Line of Sight Toward HD 73882", Ap. J. Lett., 538, L65-L68.
Massa, D., Fullerton, A.W., Hutchings, J.B., Morton, D.C.,
Sonneborn, G., Willis, A.J., Bianchi, L., Brownsberger, K.R., Crowther, P.A.,
Snow, T.P., and York, D.G. 2000, "The Detection of Wind Variability in Magellanic
Cloud O Stars", Ap. J., 538, L47-50.
Fullerton, A.W., Crowther, P.A., De Marco, O., Hutchings,
J.B., Bianchi, L., Brownsberger, K.R., Massa, D.L., Morton, D.C., Rachford,
B.L., Snow, T.P., Sonneborn, G., Tumlinson, J., and Willis, A.J. 2000, "FUSE
Observations of the Stellar Winds of Two O7 Supergiants in the Magellanic
Clouds", Ap. J., 538, L43-46.
Moos, H.W., Cash, W.C., Cowie, L.L., Davidsen, A.F., Dupree,
A.K., Feldman, P.D., Friedman, S.D., Green, J.C., Green, R.F., Gry, C., Hutchings,
J.B., Jenkins, E.B., Linsky, J.L., Malina, R.F., Michalitsianos, A.G., Savage,
B.D., Shull, J. M., Siegmund, O.H.W., Snow, T.P., Sonneborn, G., Vidal-Madjar,
A., Willis, A.J., Woodgate, B.E., York, D.G., Ake, T.B., Andersson, B-G, Andrews,
J.P., Barkhouser, R.H., Bianchi, L., Blair, W.P., Brownsberger, K.R., Cha,
A.N., Chayer, P., Conard, S.J., Fullerton, A.W., Gaines, G.A., Grange, R.,
Gummin, M.A., Hebrard, G., Kriss, G.A., Kruk, J.W., Mark, D., McCarthy, D.K.,
Morbey, C.L., Murowinski, R., Murphy, E.M., Oegerle, W.R., Ohl, R.G., Oliveira,
C., Osterman, S.N., Sahnow, D.J., Saisse, M., Sembach, K.R., Weaver, H.A.,
Welsh, B.Y., Wilkinson, E., and Zheng, W. 2000, "Overview of the Far Ultraviolet
Spectroscopic Explorer Mission", Ap. J. Lett., 538, L1-L6.
Krelowski, J., Ehrenfreund, P., Foing, B.H., Snow, T.P.,
Weselak, T., Tuairisg, S.O., Galazutdinov, G.A., and Musaev, F.A. 2000, "On
the Relation Between Diffuse Interstellar Bands and Simple Molecular Species",
A&A, 347, 235-242.
Publications (1995-1999):
Snow, T.P. 1999, "Observational Constraints on Interstellar
Dust Composition", in Formation and Evolution of Solids in Space, ed. J.M.
Greenberg and A. Li (Dordrecht:Kluwer), 1-28.
Snow, T.P. 1999, "Composition of Interstellar Gas and Dust",
JGR, 105, 10, 239-248.
Bradley, J., Keller, L., Snow, T., Hanner, M., Flynn, G.,
Gezo, J., Clemett, S., Brownlee, D., and Bowey, J. 1999, "An Infrared Spectral
Match b etween GEMS and Interstellar Grains", Science, 285, 1716-1718.
Krelowski, J., Ehrenfreund, P., Foing, B., (Snow, T.), Weselak,
T., Tuairisg, S., Galazutdinov, G., and Musaev, F. 1999, "On the Relation
between Diffuse Interstellar Bands And Simple Molecular Species", A&A, 347,
235-242.
LePage, V., Keheyan, Y., (Snow, T.), and Bierbaum, V. 1999,
"Gas Phase Chemistry of Pyrene and Related Cations with Molecules and Atoms
of Interstellar Interest", Internatl. J. Mass Spectrometry, 185/186/187, 949-959.
Bradley, J., (Snow, T.), Brownlee, D., and Hanner, M. 1999,
"Mg-Rich Olivine and Pyroxene Grains in Primitive Meteoritic Materials: Comparison
with Crystalline Silicate Data From the ISO", in Solid Interstellar Matter:
The ISO Revolution, eds. L. d'Hendecourt, C. Joblin, and A. Jones (Paris:Springer),
297-315.
Snow, T., Hanson, M., Black, J., van Dishoeck, E., Crutcher,
R., and Lutz, B. 1998, "Carbon and Oxygen Depletion and Extinction in the
Translucent Cloud Toward HD 24534", Ap. J. Lett., 496, L113-166.
LePage, V., Bierbaum, V., Keheyanm Y., and Snow, T. 1998,
"A Study of Reactions of Cations Derived from Napthalene with Molecules and
Atoms of Interstellar Interest", J. Amer. Chem. Soc., 121, 9435-9446.
Snow, T., Le Page, V., Keheyan, Y., and Bierbaum, V. 1997,
"Laboratory Studies of PAH Cations of Astrophysical Interest", Nature Lett.,
391, 259, 260.
LePage, V., Keheyan, Y., Bierbaum, V., and Snow, T. 1997,
"Chemical Constraints in Organic Cations in the Interstellar Medium", J. Amer.
Chem. Soc., 119, 8373-8374.
Krelowski, J., Schmidt, M., and Snow, T. 1997, "Groupings
of Strong and Weak Diffuse Interstellar Bands Formed by Common Carrtiers",
PASP, 109, 1135-1144.
Snow, T., Black, J., van Dishoeck, E., Burks, G., Crutcher,
R., Lutz, B., Hanson, M., and Shuping, R. 1996, "The Translucent Molecular
Clouds Toward HD 154368. I. Extinction, Abundances, and Depletions", Ap. J.,
465, 245-263.
Snow, T.P. and Witt, A.N. 1996, "Interstellar Depletions
Updated: Where All the Atoms Went", Ap. J. Lett., 468, L65-68.
Snow, T.P. 1995, "Comments on Two-Photon Absorption by H2
Molecules as a Source of Diffuse Interstellar Bands", Chem. Phys. Lett., 245,
639-642.
Snow, T.P. and Witt, A.N. 1995, "The Interstellar Carbon
Budget and the Role of Carbon in Dust and Large Molecules", Science, 270,
1455-1460.
Lamers, H.J.G.L.M., Snow, T.P., And Lindholm, D. 1995, "Terminal
Velocities and the Bi-Stability of Stellar Winds", Ap. J., 455, 269-285.
