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    Publications  with  pdf  files:

            2009


                   Carlson, R.W., W.M. Calvin, J.B. Dalton, G.B. Hansen, R.L. Hudson,

                    R.E. Johnson, T.B. McCord and M.H. Moore, "Europa's Surface Composition",
                    
Chapter in Europa, Ed R. Pappalardo et al. (2009) in press. (pdf)

                   Cassidy, T.A., R. Mendez, P. Arras, R.E. Johnson, and M.F. Skrutskie,
                   "MASSIVE  SATELLITES OF CLOSE-IN GAS GIANT EXOPLANETS",
                   ApJ 704:1341-1348, 2009. (pdf)

                   Cassidy, T.A., R.E. Johnson, and O.J. Tucker, "Trace constituents of
                    Europa's atmosphere", Icarus (2009) in press. (pdf)

                    Cassidy, T., P. Coll, F. Raulin, R.W. Carlson, R.E. Johnson, M.J. Loeffler,
                     K.H. Hand, R.A. Baragiola, "II.4. Radiolysis and photolysis",
                     Chapter in Exchange Processes in the Outer Solar System (2009)
                     submitted (doc)

                       Cipriani, F., F. Leblanc, O. Witasse, R.E. Johnson, "Exospheric signatures
                      of alkali abundances in Europa's regolith", GRL 36, L12202,
                      doi:10.1029/2009GL038636, 2009. (pdf)


                       Coates, A.J., G.H. Jones, G.R. Lewis, A. Wellbrock, D.T. Young, F.J. Crary,
                    R.E. Johnson, T.A. Cassidy, T.W. Hill, "Negative Ions in the Enceladus
                    Plume", Icarus (2009) in press. (pdf)

                       Cousteins, A. et al., "TandEM: Titan and Enceladus mission",
                   Exp Astron 23, 893-946, Doi 10.1007/s10686-008-9103-z, 2009. (pdf)

                    Cuzzi, J., R. Clark, G. Filacchione, R. French, R. Johnson, E. Marouf, and
                    L. Spilker,  "Ring Particle Composition and Size Distribution", Chapter 15
                    in Saturn from Cassini-Huygens (ed. M.K. Dougherty)  pp459-209 (2009).
                    (pdf)

                      Farrell, W.M., W.S. Kurth, D.A. Gurnett, R.E. Johnson, M.L. Kaiser,
                    J.-E. Wahlund, and J.H. Waite Jr., "Electron density dropout near
                    Enceladus in the context of water-vapor and water-ice", GRL 36,
                    L10203, doi:10.1029/2008GL037108, 2009. (pdf)

             
        Johnson, R.E., "Sputtering and heating of Titan's upper atmosphere" ,
                    Phil. Trans. R. Soc. A (2009) 367, 753-771, doi:10.1098/rsta.2008.0244.
                    (pdf)


                    Johnson, R.E., O.J. Tucker, M. Michael, E.C. Sittler, H.T. Smith,
                    D.T. Young, and J.H. Waite, "Mass Loss Processes in Titan's Upper
                    Atmosphere", Springer-Verlag 2009. in press. (pdf)

                  
Johnson, R.E., M.H. Burger, T.A. Cassidy, F. Leblanc, M. Marconi, W.H.
                   Smyth, "Composition and Detection of Europa's Sputter-Induced
                   Atmosphere", Chapter 20 in Europa, Eds. R. Pappalardo et al. (2009)

                   in press. (pdf)

                   Johnson, R.E., "Photolysis and Radiolysis of Water Ice", Chapter in
                   PAN STANFORD PUBLISHING (2009) in press. (doc)
        
                   Jones, G.H. et al., "Fine jet structure of electrically charged grains in
                   Enceladus' plume", GRL 36, L16204, doi:10.1029/2009GL038284,
                   2009. (pdf)
                     
                   Mauk, B.H., D.C. Hamilton, T.W. Hill, G.B. Hospodarsky, R.E. Johnson,
                    C. Paranicas, E. Roussos, C.T. Russell, D.E. Shemansky, E.C. Sittler,
                    R.M. Thorne, "Fundamental Plasma Processes in Saturn's Magnetosphere",
                    Chapter 11 in
Saturn from Cassini-Huygens (ed. M.K. Dougherty) 
                         pp 281-331 (2009). (pdf)

                   Paranicas, C., J.F. Cooper, H.B. Grarrett, R.E. Johnson, and S.J. Sturnet,
                    "Europa's radiation environment and its effects on the surface",
                    Chapter in Europa (2009) in press.  (pdf)

                      Schneider, N. M., M.H. Burger, E.L. Schaller, M.B. Brown, R.E. Johnson,
                    J.S. Kargel, M.K. Dougherty, and N.A. Achilleos, "No Sodium in the
                    vapour plumes of Enceladus", Nature 459,1102-1104 (2009). (pdf)

                  Shah, M.B., C.J. Latimer, E.C. Montenegro, O.J. Tucker, R.E. Johnson,
                    and H.T. Smith, "THE IMPLANTATION AND INTERACTION OF O+
                    IN TITAN'S ATMOSPHERE: LABORATORY MEASURMENS OF
                    COLLISION-INDUCED DISSOCIATION OF N2 AND MODELING
                    OF POSITIVE ION FORMATION", ApJ  703:1947-1954, 2009. (pdf).

                      Sittler, E.C. etal, "Saturn's Magnetosphere and Properties of Upstream
                   Flow at Titan: Preliminary Results", Planetary & Space Sci.
                   (2009) submitted. (pdf)

                 
Sittler, E.C. Jr., A. Ali, J.F. Cooper, R.E. Hartle, R.E. Johnson, A.J. Coates,
                   D.T. Yoing, "Heavy ion formation in Titan's ionosphere: Magnetospheric 
                   iontroduction of free oxygen and a source of Titan's aerosols?",
                   Planetary and Space Science 57, 1547-1557 (2009). (pdf)

                        Smith, H.T., D.G. Mitchell, R.E. Johnson, and C.P. Paranicas,
                   "Investigation of energetic proton penetration in Titan's atmosphere using
                    the Cassini INCA instrument", Plant. & Space Sci. 57, 1538-1546 (2009).
                   (pdf)

                   Tokar, R.L., R.E. Johnson, M.F. Thomsen, R.J. Wilson, D.T. Young,
                   F.J. Crary, A.J. Coates, G.H. Jones, and C.S. Paty, "Cassini detection of
                  Enceladus' cold water-group plume ionosphere", GRL 36, L13203,
                  doi:10.1029/2009GL038923, 2009. (pdf)
 
                   Tseng, W-.L., W.-H. Ip, R.E. Johnson, T.A. Cassidy, and M.K. Elrod,
                   "The Structure and Time Variability of the Ring atmosphere and
                   ionosphere", Icarus (2009) Accepted. (pdf)

                   Tucker, O.J., and R.E. Johnson, "Thermally driven atmospheric escape:
                   Monte Carlo simulations for Titan's atmosphere", Planetary Space Sci.
                   (2009)in press. (pdf)


               
2008            

                     Cipriani, F., F. Leblanc, O. Witasse, and R.E. Johnson, "Sodium recycling at
                   Europa: what do we learn from the sodium cloud variability", GRL 35,
                   L19201, doi:10.1029/2008GL035061, 2008. (pdf)

                    Martens, H.R., D.B. Reisenfeld, J.D. Williams, R.E. Johnson and H.T. Smith,
                    "Observations of molecular oxygen ions in Saturn's inner magnetosphere",
                    GRL 35, L20103, doi:10.1029/2008GL035433, 2008. (pdf)

                       Paranicas, C., D.G. Mitchell, S.M. Krimigis, D.C. Hamilton, E. Roussos,
                    N. Krupp, G.H. Jones, R.E. Johnson, J.F. Cooper, T.P. Armstrong, "Source 
                    and losses of energetic protons in Saturn's magnetosphere", Icarus 197,
                    519-525 (2008) (pdf)

                      Smith, H.T., M. Shappirio, R.E. Johnson, D. Reisenfeld, E.C. Sittler,
                    F.J. Crary, D.J. McComas, D.T. Young, " Enceladus: A potential source
                    of ammonia products and molecular nitrogen for Saturn's magnetosphere",
                    JGR 113, A11206, doi:10.1029/2008JA013352, 2008. (pdf)

                      Fox, J.L., M.I. Galand, R.E. Johnson, "Energy Deposition in Planetary
                     Atmospheres by Charged Particles and Solar Photons", Space Sci Rev
                      139: 3-62, DOI 10.1007/s11214-008-9403-7(2008). (pdf)

                       Hendrix, A.R., R.E. Johnson, "Callisto: New insights from Galileo
                     disk-resolved UV measurements" Astrophys. Journal  687, 706-713 (2008)
                      (pdf).

                       Huestis, D.L., S.W. Bougher, J.L. Fox, M.Galand, R.E. Johnson, J.I. Moses,
                     J.C. Pickering, "Cross Section and Reaction Rates for Comparative Planetary
                     Aeronomy", Space Sci Rev 139: 63-105, DOI 10.1007/s11214-008-9383-7
                     (2008). (pdf)

                   Lammer, H, J.F. Kasting, E. Chassefiere, R.E. Johnson, Y.N. Kulikov, F. Tian,
                     "Atmospheric Escape and Evolution of Terrestrial Planets and Satellites",
                     Space Sci Rev 139: 399-436, DOI 10.1007/s11214-008-9413-5 (2008).
                     (pdf)

                   Jones, G.H. etal., "The Dust Halo of Satern's Largest Icy Moon, Rhea", 
                    Science 319, 1380-1384 (2008) (pdf)

                     Cassidy, T.A., R.E. Johnson, P.E. Geissler, F. Leblanc, "Simulation of Na D
                    emission near Europa during eclipse", JGR 113, doi:10.1029/2007JE002955,
                    2008. (pdf)

                    Johnson, R.E., M.R. Combi, J.L. Fox, W-H. Ip, F. Leblanc, M.A. McGrath,
                    V.I. Shematovich, D.F. Strobel, J.H. Waite Jr, "Exospheres and Atmospheric
                    Escape", Chapter in Comparative Aeronomy, Ed. A. Nagy, Space Sci Rev 
                    139: 355-397, DOI 10.1007/s11214-008-9415-3 (2008).  (pdf)

                    Johnson,  R.E., M. Fama, M. Liu,  R.A. Baragiola, E.C. Sittler, Jr, H.T. Smith,
                   "Sputtering of Ice Grains and Icy Satellites in Saturn's Inner Magnetosphere",
                   Plane. & Space Sciences 56, 1238-1243 (2008). (pdf)

                        Tokar, R.L., R.J. Wilson, R.E. Johnson, M.G. Henderson, M.F. Thomas, M.M.
                    Cowee, E.C. Sittler, Jr., D.T. Young, H.J. McAndrews, H.T. Smith, "Cassini
                    Detection of Water-group pick-up ions in Saturn's torus ",
                    GRL 35, L14202, doi:10.1029/2008GL034749, 2008. (pdf)

                    Sittler, E.C., N. Andre, M. Blanc, M. Burger, R.E. Johnson, A. Coates,
                    A. Rymer,  D. Reisenfeld, M.F. Thomsen, A. Persoon, M. Dougherty,
                    H.T. Smith, R.A. Baragiola, R.E. Hartle, D. Chornay, M.D. Shappirio,
                    D. Simpson,  D.J. McComas, and D.T. Young,  "Ion and neutral sources and
                    sinks within Saturn's inner  magnetosphere: Cassini results", Planet. Space
                    Sci.
56, 3-18 (2008). (pdf)

                2007

                    Burger, M.H., E.C. Sittler Jr., R.E. Johnson, H.T. Smith, O.J. Tucker, and
                    V.I. Shematovich, "Understanding the escape of water from Enceladus",
                    JGR 112, A06219, doi:10/1029/2006JA012086, 2007. (pdf)

                    Chaufray, J.Y., R. Modolo, F. Leblanc, G. Chanteur, R.E. Johnson, and J.G.
                    Luhmann,  "Mars Solar Wind interaction: formation of the Martian corona
                    and atmosphric loss to space", JGR 112, E09009, doi:10.1029/2007JE002915,
                    2007. (pdf) 

                    Cassidy, T.A., R.E. Johnson, M.A. McGrath, M.C. Wong,  J.F. Cooper, 
                    "The spatial morphology of Europa's near-surface O2 atmosphere",
                    Icarus
191, 755-764 (2007) (pdf)
   
                   
De La Haye, V., J.H. Waite Jr., T.E. Cravens, A.F. Nagy, R.V. Yelle,
                    R.E. Johnson, S. Lebonnois, I.P. Robertson, "Titan's corona: The
                    contribution of exothermic chemistry", Icarus 191, 236-250 (2007)  (pdf)

                    De La Haye, V., J.H. Waite Jr., R.E. Johnson, et al., "Cassini Ion and
                    Neutral Mass Spectrometr data in Titan's upper atmosphere and exosphere:
                    Observation of a suprathermal corona", JGR 112, A07309,
                    doi:10.1029/2006JA012222, 2007. (pdf)

                     Leblanc, F. E. Chassefiere, R.E. Johnson, D.M. Hunten, E. Kallio, D.C.
                     Delcourt, R.M. Killen, J.G. Luhmann, A.E. Potter, A. Jambon et al,
                     "Mercury's exosphere origins and relations to its magnetosphere and
                     surface", Plant. Space Sci. 55, 1069-1092 (2007). (pdf)

                    Smith, H.T., R.E. Johnson, E.C. Sittler, M. Shappirio, D. Reisenfeld, O
                   .J. Tucker,
M. Burger, F.J. Crary, D.J. McComas, D.T. Young, "Enceladus:
                   The likely dominant
nitrogen source in Saturn's magnetosphere",
                   
Icarus 188, 356-366 (2007).  (pdf)


                    Rymer, A.M., B.H. Mauk, T.H. Hill, C. Paranicas, N. Andre, E.C. Sittler Jr., 
                    D.G. Mitchell, H.T. Smith,  R.E. Johnson, A.J. Coates, D.T.Young,
                    S.J. Bolton,
M.F. Thomsen, and M.K. Dougherty, "Electron source in
                    Saturn's magnetosphere",
JGR 112, A02201, dio:10.1029/2006JA012017,
                    2007.
(pdf)
        
  
            
2006

                   
Tokar, R.L., R.E. Johnson, T.W. Hill, D.H. Pontius, W.S. Kurth, F.J. Crary,
                    D.T. Young, M.F. Thompsen, D.B. Reisenfeid, A.J. Coates, G.R. Lewis, E.C.
                    Sittler, D.A. Gurnett, "The Interaction of the Atmosphere of Enceladus
                    with Saturn's Plasma', Science 311, 1409-1412 (2006).  (pdf)

                    Hartle, R.E., E.C. Sittler, F.M. Neubauer, R.E. Johnson, H.T. Smith et al.,
                   "Initial interpretation of Titan plasma interaction as observed by the Cassini
                    plasma spectrometer: Comparisons with Voyager 1",
                    Planetary and Space Science
54, 1211-1224 (2006). (pdf)

                    Sittler, E.C., M. Thomson, R.E. Johnson et al.,  "Cassini observations of
                    Saturn's
inner plasmasphere: Saturn orbit insertion result"
,
                    Planet. & Space Sci.
54, 1197-1210 (2006). (pdf)

                    Erratum to above paper, 
Planet. & Space Sci. 55, 2218-2220 (2007).(pdf)                  

                    Grundy, W.M., L.A. Young, J.R. Spencer, R.E. Johnson, E.F. Young, M.W.
                    Buie,
"Distributions of H2O and CO2 ices on Ariel, Umbriel, Titania, and
                    Oberon from IRTF/SpeX
Observations", Icarus 184, 543-555 (2006). (pdf)


                    Johnson, R.E. and P.J. Huggins, "Toroidal Atmosphere around Extrasolar
                    Planets", Astron. Soc. of the Pacific 118, 1136-1143 (2006) (pdf)
.
 
           
             Sittler, E.C., R.E. Johnson, H.T. Smith, J.D. Richardson, S. Jurac, M.
                    Moore,
J.F. Cooper, B.H. Mauk, M. Michael, C. Paranicas, T.P. Armstrong,
                    and B. Tsurutani,
"Energetic Nitrogen Ions within the Inner Magnetosphere
                    of Saturn", J. Geophys.
Res. 111, A09223, doi:10.1029/2004JA010509
                    (2006)
(pdf)

                    Hartle, R.E., E.C. Sittler, F.M. Neubauer, R.E. Johnson, H.T. Smith, F. Crary, 
                    D.J. McComas,
D.T. Young, A.J. Coates, D. Simpson, S. Bolton, D. Reisenfeld,
                    K. Szego, J.J. Berthelier,
A. Rymer, J. Vilppola, J.T. Steinberg, and N. Andre,
                    "Preliminary interpretation of Titan plasma
interaction as observed by the
                   Cassini Plasma Spectrometer: Comparisons  with Voyager 1",
Geophys. Res.
                   Letts.
33, L08201, doi:10.1029/2005GL024817 (2006). (pdf)


                    Cooper, J.F., R.E. Johnson, and J.D. Richardson, "Space Physics, Mars and
                    Life", Astrobiology 6, 437-438 (2006). (pdf)

                    Johnson, R.E., H.T. Smith, O.J. Ticker, M. Liu, and R. Tokar, "The Enceladus
                    and OH Tori at Saturn", Astrophys. J. Letts. 644:L137-L139 (2006) (pdf).

                    Johnson, R.E., J.G. Luhmann, R.L. Tokar, M. Bouhram, J.J. Berthelier, E.C.
                   Siler,
J.F. Cooper, T.W. Hill, H.T. Smith, M. Michael, M. Liu, F.J. Crary, D.T.
                   Young,
"Production, Ionization and Redistribution of O2 Saturn's Ring 
                   Atmosphere"
, Icarus 180, 393-402 (2006).(pdf)

                    Bouhram, M, R.E. Johnson, J.-J. Berthelier, J.-M. Illiano, R.L. Tokar,
                    D.T. Young, and F.J. Crary, "A test-particle model of the atmosphere/
                    ionosphere system of Saturn's main rings", 
Geophys. Res. Letts. 33,
                    L05106, doi:10.1029/2005GL025011(2006). (pdf)


                    Luhmann, J.G., R.E. Johnson, R.L, Tokar, S.A. Ledvina, and T.E. Cravens,
                    "A model of Saturn's
rings and its implications", Icarus 181, 465-474
                    (2006). (pdf)


                    2005

                          Tucker, O.J., D.S. Ivanov, R.E. Johnson, L.V. Zhigilei, and E.M. Bringa,
                     " Molecular
dynamics simulation of sputtering from a cylindrical track:
                     EAM versus pair potentials", Nucl. Instrum. and Methods B 228, 163-169
                     (2005). (pdf)

                     Shematovich, V.I., R.E. Johnson,  J.F. Cooper, and M.C. Wong, "Surface-
                     bounded
Atmosphere of Europa", Icarus 173, 480-498 (2005). (pdf)

                    Young, D.T. et al. "Composition and Dynamics of Plasma in Saturn's
                    Magnetosphere",
Science 307, 1262-1266 (2005). (pdf)

                     Michael, M., R.E. Johnson, F. Leblanc, M. Liu, J.G. Luhmann, and V.I.
                     Shematovich,
"Ejection of Nitrogen from Titan's Atmosphere by
                     Magnetosphric Ions and Pick-up
Ions",  Icarus 175, 263-267 (2005). (pdf)

                     Smith, H.T., M. Shappirio, E.C. Sittler, D. Reisenfeld, R.E. Johnson,
                     R.A. Baragiola,
F.J. Crary, D.J. McComas, and D.T. Young, "Discovery
                     of Nitrogen in Saturn's Inner
Magnetosphere",  Geophys. Res. Letts. 32,
                     L14S03, doi:10.1029/2005GL022654(2005). (pdf)

                     Coates, A.J. et al., "Plasma electrons above Saturn's main rings: CAPS
                     observations", GRL
32, L14S09, doi:10.1029/2005GL022694(2005). (pdf)

                     Sittler, E.C. Jr., et al., "Preliminary results on Saturn's  inner
                     plasmasphere as observed by
Cassini: Comsition with Voyager",
                   
Geophys. Res. Letts. 32, L14S07, doi:10.1029/2005GL022653(2005). (pdf)

                     Tokar, R.L., R.E. Johnson et al., "Cassini Observations of the Thermal
                     Plasma in the Vicinity
of Saturn's Main Rings and the F and G rings",
                    
Geophys. Res. Letts. 32, L14S04, doi:10.1029/2005GL022690,2005. (pdf)

                     Cassidy, T.A. and R.E. Johnson, "Monte Carlo model of sputtering and
                     other ejection
processes within a regolith", Icarus 176, 499-507(2005).
                      (pdf)

                     Szego, K. et al., "The global plasma enviromentt of Titan as observed by
                     Cassini Plasma
Spectrometer during the first two close encounters with
                     Titan", 
Geophys. Res. Letts. 32, L20s05, doi:10.1029/2005GL022646,
                     2005. (pdf)

                     Carlson, R.W., M.S. Anderson, R. Mehlman, R.E. Johnson, "Distribution
                     of hydrate on
Europa: Further evidence for sulfuric acid hydrate",
                     Icarus
77, 461-471 (2005). (pdf)

                     Leblanc F.,  A. Potter, R. Killen, and , R. E. Johnson ,  " Origins of
                     Europa Na cloud
and trous", Icarus 178, 367-385 (2005). (pdf)

                     Elsner, R.F., B.D. Ramsey, J.H. Waite, P. Rehak, R.E. Johnson, J.F. Cooper,
                     and
D.A. Swartz, "X-ray probes of Magnetospheric interactions with
                     Jupiter's auroral
  zones, the Galilean satellites, and the Io plasma torus"
                     Icarus
178, 417-428 (2005). (pdf)

                    Johnson, R.E., M. Liu, and E.C. Sittler, "Plasma-Induced Clearing and
                    Redistribution of,
Material  Embedded in Planetary Magnetospheres",
                   
Geophys. Res. Letts. 32, L24201, doi:10.1029/2005GL024275, 2005. (pdf)

                    Luna, H, C. McGrath, M.B. Shah, R.E. Johnson, M. Liu, C.J. Latimer, and
                    E.C. Montenegro,
"Dissociative Charge Exchange and Ionization of O2 by
                    fast H+ and O+ ions: Energetic
Ion Interactions in Europa's Oxygen
                   Atmosphere and Neutral Torus", Astronphysical
Journal  628, 1086-1096
                   (2005). (pdf)

                    Johnson, R.E., P.D. Cooper, T.I. Quickenden, G.A. Grieves, T.M. Oriando,
                    "Production of
oxygen by electronically induced dissociations in ice",
                    J. Chem. Phys.
123, 184715-1-8
(2005). (pdf)

                    Sittler, E.C. Jr., R.E. Hartle, A.F. Vinas, R.E. Johnson, H.T. Smith,  and
                    I. Mueller-
Wodarg,
"Titan interaction with Saturn's magne
                   
doi:10.1029/2004JA010759,2005. (pdf)

                    Michael, M. and R.E. Johnson, "Energy deposition of pickup ions and
                    heating of Titan's
atmosphere", Planetary & Space Sci. 53, 1510-1514
                   (2005). (pdf)


                 2004 

 
                Bringa, E.M. and R.E. Johnson, "A New  Model for Cosmic-Ray Ion Erosion

                     of Volatiles from Grains in The Interstellar Medium", Astrophys. J. 603, 159-164
                    (2004).(pdf)

                Funsten, H.O., S.M. Ritzau, R.W. Harper, J.E. Borovsky, and R.E. Johnson,
                  "Energy
Loss by keV Ions in Silicon", Phys. Rev. Lett. 92, 213201-1-4 (2004).
                  (pdf)

                  Luna, H., M. Michael, M.B. Shah, R.E. Johnson, C.J. Latimer, and
                     J.W. McConkey, "Dissociation of N2 in capture and ionization collisions with
                     fast H+ and N+ ions and modeling of positive ion formation in the Titan
                     atmosphere" J. Geophys. Res. 108, doi:10.1029/2002JE001950 (2003). (PDF)

                  Shematovich, V.I., R.E. Johnson, M. Micheal, and J.G. Luhmann, "Nitrogen loss
                     from Titan", J. Geophys. Res. 108, doi:10.1029/2003JE002094,(2003). (PDF)

                  Cooper, P.D., R.E. Johnson, and T.I. Quickenden,  "Hydrogen Peroxide Dimers
                     and the Production of O2 in icy Satellite Surfaces", Icarus 166, 444-446 (2003)
                    (PDF).

                  Leblanc, F. and R.E. Johnson, "Mercury's Sodium exosphere", Icarus 164, 261-
                    281 (2003) (PDF)

                  Strazzulla, G., J.F. Cooper, and R.E. Johnson, "Ion irradiation of TNOs: from the
                    fluxes measured in space to the laboratory experiments", Comp. Ren. Physique
                    1, 791-801 (2003). (PDF)

                  Leblanc F.,  D. Delcourt , and R. E. Johnson , "Mercury's sodium exosphere:
                    Magnetospheric ion recycling", J. Geophys. Res. 108,
                    doi:10.1029/2003
JE002151(2003). (pdf)                  

                 Tully, C., R.E. Johnson, "Erratum : 'Semiclassical calculation of collisional
                    dissociation cross section for N+N2' [ J. Chem. Phys. 117, 6556 (2002)]",
                     J. Chem. Phys. 119, 10452-10453 (2003) . (pdf)

                   2002

                    Johnson, R.E., "Surface Boudary Layer Atmospheres", Chapter in
                    Atmospheres in the Solar System: Comparative  Aeronomy Geophysical
                     Monograph 130, pp203-219 (2002). (pdf)

                     Leblanc, F. and R.E. Johnson,, "Role of molecular species in pickup Ion
                         sputering of the Martian atmosphere", J.  Geophys. Res. 107, 5-1 -6
                     doi:10.1029/2000JE001473 (2002) [pdf]

                     Johnson, R.E., M. Liu, and C. Tully, "Collisional Dissociations Cross
                     Sections
for O+O2, CO and N2, O2+O2, N+N2 and N2+N2", Planetary
                     and Space
Science 50(1) 123-128 (2002). [pdf]

                     Bringa, E.M., R.E. Johnson, and R.M. Papaleo, "Crater Formation by
                     Single
Ions in the Electronic Stopping Regine: Comparison of Molecular
                     Dynamics
Simulation With Experiments on Organic Films", Phys. Rev.
                    
B 65,
094113-1-8 (2002). [pdf]

                     Bringa, E.M. and R.E. Johnson, "Coulomb Explosion and Thermal Spikes"
                         Phys. Rev. Lett. 88,165501-1-4 (2002). (PDF)

                     Johnson, R.E., F. Leblanc, B.V. Yakshinskiy and T.E. Madey, "Energy
                         Distributions for Desorption of Sodium and Potassium from Ice: the Na/K
                          ratio at Europa", Icarus 156, 136-142 (2002). [pdf]

                     Paranicas, C., B.H. Mauk, J.M. Ratliff, C. Cohen, and R.E. Johnson, "The
                         ion enviroment near Europa and its role in surface energetics"
                         Geophys. Res. Letts. 29, 18-1 - 4 (2002). [pdf]

                     Leblanc, F., J.G. Luhmann, R.E. Johnson, and E. Chassefiere, "Some
                          expected impacts of a solar energetic particle event at Mars",
                          J. Geophys. Res 107, doi:10.1029/2001JA900178 (2002). [pdf]

                     Elsner, R.F., G.R. Gladstone, J.H. Waite, F.J. Crary, R.R. Howell,
                          R.E. Johnson, P.G. Ford, A.E. Metzger, K.C. Hurley, E.D. Feigelson,
                          G.P. Garmire, A. Bhardwaj, D.C. Grodent, T. Majeed, A.F. Tennant,
                          and M.C. Weisskopf, "Discovery of Soft X-Ray Emission from  Io,
                          Europa, and the Io Plasma Torus", Astrophys. J. 572,1077-1082 (2002). [pdf]

                     Leblanc, F. , R.E. Johnson and M.E. Brown, "Europa's Sodium
                    Atmosphere:
an Ocean Source? ",  Icarus 159,132-144 (2002). [pdf]

                     Madey, T.E., R.E. Johnson and T.M. Orlando, "Far-out surface science:
                     radiation-induced surface processes in the solar system"
                     Surface Science  500, 838-858 (2002). [pdf]

                     Tully, C., R.E. Johnson, "Semiclassical calculation of collisional
                     dissociation
cross section for N+N2", J. Chem. Phys. 117, 6556 - 6561
                     (2002) (PDF)

                     Jakas, M.M., E.M. Bringa, and R.E. Johnson, "Fluid dynamics calculation
                     of
 sputtering from a cylindrical thermal spike", Physical Review B 65,
                    165425-1 - 9 (2002). [pdf]

                     Jurac, S., M.A. McGrath, R.E. Johnson, J.D. Richarson, V.M. Vasyliunas,
                     and A. Eviatar, "Saturn: Search for a missing water source"
                    Geophys. Res. Letts. 29, 25-1-4, doi:10.1029/2002GL015855 (2002). (PDF)

                     Bringa, E.M. and R.E. Johnson, "Sputtering of nano-grains by energetic
                     ions",
Nucl. Instr. and Meth. in Phys. Res. B 193, 365-370 (2002). [pdf]

                     Bringa, E.M. , E. Hall, R.E. Johnson, and R. Papaleo, "Crater formation
                     by ion
bombardment as a function of incident angle",
                     Nucl. Instr. and Meth. in Phys. Res. B 193, 734-738 (2002). [pdf]

                     Carlson, R.W., M.S. Anderson, R.E. Johnson, M.B. Schulman, and
                     A.H. Yavouian, "Sulfuric Acid Production on Europa: The Radiolysis of
                     Sulfur in Water Ice", Icarus 157, 456-463 (2002). [pdf]

                     Blanc, M. et al., "Magnetospheric and Plasma Science with Cassini-
                     Huygens",
 Space Science Revs. 104, 253-346 (2002). (pdf)

                     Bhardwaj, A. et al., "Soft X-ray Emissions from Planets, Moons, and
                     Comets",
Proc. ESLAB 36 Symposium, 'Earth-Like Planets and Moons',
                     ESTEC noordwijk,
3-8 , 215, June 2002 (ESA SP-514, October 2002)
                     (PDF)

 

                   2001
                    Cooper, J.F ., R.E. Johnson,  B.H. Mauk,  H.B. Garrett, and N. Gehrels
                "Energetic  Ion and Electron Irradiation of the Icy Galilean Satellites"

                 Icarus 
149(1), 133-159 (2001). [pdf]
                                    the publications from 1987 - 2000 with pdf