Steven Ledvina

Publications

1. A magnetohydrodynamic test of the Wang-Sheely model, Ledvina, S.A., Luhmann, J.G., and W.P. Abbett, Solar Wind Ten: Proceedings of the Tenth International Solar Wind Conference, Eds.: M. Velli, R. Bruno and F. Malara, 323-326, 2003.

2. Ambient ion distributions in Saturn's magnetosphere near Titan during a non-Voyager type interaction, Ledvina, S. A.; Luhmann, J. G.; Cravens, T. E., Adv. Space Res., 33 (2), 221-226, 2004.

3. Induced magnetospheres, J. G. Luhmann, S. A. Ledvina, and C. T. Russell, Adv. Space Res., 33, 1905-1912, 2004.

4. Ion distributions of 14 amu pickup ions associated with Titan's plasma interaction, S. A. Ledvina, S. H. Brecht, J. G. Luhmann, Geophys. Res. Lett., 31(17), L17S10, 2004.

5. Titan's induced magnetosphere, Ledvina, S. A.; Luhmann, J. G.; Brecht, S. H.; Cravens, T. E., Adv. Space Res., 33 (11), 2092-2102, 2004.

6. Ion Neutral Mass Spectrometer Results from the First Flyby of Titan, Waite, J. Hunter; Niemann, Hasso; Yelle, Roger V.; Kasprzak, Wayne T.; Cravens, Thomas E.; Luhmann, Janet G.; McNutt, Ralph L.; Ip, Wing-Huen; Gell, David; De La Haye, Virginie; Müller-Wordag, Ingo; Magee, Brian; Borggren, Nathan; Ledvina, Steve; Fletcher, Greg; Walter, Erin; Miller, Ryan; Scherer, Stefan; Thorpe, Rob; Xu, Jing; Block, Bruce; Arnett, Ken, Science, 308 (5724), 982-986, 2005.

7. Oxygen Ions Observed Near Saturn's A Ring, Waite, J. H.; Cravens, T. E.; Ip, W.-H.; Kasprzak, W. T.; Luhmann, J. G.; McNutt, R. L.; Niemann, H. B.; Yelle, R. V.; Mueller-Wodarg, I.; Ledvina, S. A.; Scherer, S., Science, 307 (5713), 1260-1262, 2005.

8. Titan's ionosphere: Model comparisons with Cassini Ta data, Cravens, T. E.; Robertson, I. P.; Clark, J.; Wahlund, J.-E.; Waite, J. H.; Ledvina, S. A.; Niemann, H. B.; Yelle, R. V.; Kasprzak, W. T.; Luhmann, J. G.; McNutt, R. L.; Ip, W.-H.; De La Haye, V.; Müller-Wodarg, I.; Young, D. T.; Coates, A. J., Geophys. Res. Lett., 32 (12), L12108, 2005.

9. A Comparison between Global Solar Magnetohydrodynamic and Potential Field Source Surface Model Results, Riley, Pete; Linker, J. A.; Mikić, Z.; Lionello, R.; Ledvina, S. A.; Luhmann, J. G., Astrophys. J., 653 (2), 1510-1516, 2006.

10. A model of the ionosphere of Saturn's rings and its implications, Luhmann, J. G., R. E. Johnson, R. L. Tokar, S. A. Ledvina, T. E. Cravens, Icarus, 181(2), 465-474, 2006.

11. Composition of Titan's ionosphere, Cravens, T. E.; Robertson, I. P.; Waite, J. H.; Yelle, R. V.; Kasprzak, W. T.; Keller, C. N.; Ledvina, S. A.; Niemann, H. B.; Luhmann, J. G.; McNutt, R. L.; Ip, W.-H.; De La Haye, V.; Mueller-Wodarg, I.; Wahlund, J.-E.; Anicich, V. G.; Vuitton, V., Geophys. Res. Lett., 33 (7), L07105, 2006.

12. Venus O+ pickup ions: Collected PVO results and expectations for Venus Express, Luhmann, J. G.; Ledvina, S. A.; Lyon, J. G.; Russell, C. T., Planetary and Space Science, 54 (13-14), 1457-1471, 2006.

13. A heliospheric simulation-based approach to SEP source and transport modeling, Luhmann, J. G.; Ledvina, S. A.; Krauss-Varban, D.; Odstrcil, D.; Riley, P., Adv. Space Res., 40 (3), 295-303, 2007.

14. Cassini Orbiter Ion and Neutral Gas Mass Spectrometer (INMS) Results, Kasprzak, W. T.; Waite, J. H.; Yelle, R.; Cravens, T. E.; Luhmann, J.; McNutt, R.; Ip, W.; Robertson, I. P.; Ledvina, S.; Niemann, H. B.; Fletcher, G.; Thorpe, R.; Gell, D.; Magee, B., Workshop on Planetary Atmospheres, held November 6-7, 2007 in Greenbelt, Maryland. LPI Contribution No. 1376, 59, 2007.

15. Energetic ion precipitation at Titan, Cravens, T. E.; Robertson, I. P.; Ledvina, S. A.; Mitchell, D.; Krimigis, S. M.; Waite, J. H., Geophys. Res. Lett., 35 (3), L03103, 2008.

16. Numerical Simulations of Solar Wind Disturbances by Coupled Models, Odstrcil, D.; Pizzo, V. J.; Arge, C. N.; Bissi, M. M.; Hick, P. P.; Jackson, B. V.; Ledvina, S. A.; Luhmann, J. G.; Linker, J. A.; Mikic, Z.; Riley, P., Numerical Modeling of Space Plasma Flows: Astronum 2007 ASP Conference Series, Vol. 385, proceedings of the conference held 10-15 June, 2007, at Hotel Concorde Montparnasse, Paris, France. Edited by Nikolai V. Pogorelov, Edouard Audit, and Gary P. Zank. San Francisco: Astronomical Society of the Pacific, 167, 2008.

17. Plasma Flow and Related Phenomena in Planetary Aeronomy, Ma, Y.-J.; Altwegg, K.; Breus, T.; Combi, M. R.; Cravens, T. E.; Kallio, E.; Ledvina, S. A.; Luhmann, J. G.; Miller, S.; Nagy, A. F.; Ridley, A. J.; Strobel, D. F., Space Sci. Rev., 139 (1-4), 311-353, 2008.

18. Venus Express observations of atmospheric oxygen escape during the passage of several coronal mass ejections, Luhmann, J. G.; Fedorov, A.; Barabash, S.; Carlsson, E.; Futaana, Y.; Zhang, T. L.; Russell, C. T.; Lyon, J. G.; Ledvina, S. A.; Brain, D. A., J. Geophys. Res., 113 (52), E00B04, 2008.

19. A comparison of global models for the solar wind interaction with Mars, D. Brain, S. Barabash, A. Boesswetter, S. Bougher, S. Brecht, G. Chanteur, D. Hurley, E. Dubinin, X. Fang, M. Fraenz, J. Halekas, E. Harnett, M. Holmstrom, E. Kallio, H. Lammer, S. Ledvina, M. Liehmon, K. Liu, J. Luhmann, Y. Ma, R. Modolo, A. Nagy, A. Motschmann, H. Nillson, H. Shinagawa, S. Simon, N. Terada,, Icarus, 206, 139-151, 2010.

20. Cone model-based SEP event calculations for applications to multipoint observations, Luhmann, J. G.; Ledvina, S. A.; Odstrcil, D.; Owens, M. J.; Zhao, X.-P.; Liu, Yang; Riley, Pete, Adv. Space Res., 46 (1), 1-21, 2010.

21. Dynamical and magnetic field time constants for Titan's ionosphere: Empirical estimates and comparisons with Venus, Cravens, T. E.; Richard, M.; Ma, Y.-J.; Bertucci, C.; Luhmann, J. G.; Ledvina, S.; Robertson, I. P.; Wahlund, J.-E.; Ċgren, K.; Cui, J.; Muller-Wodarg, I.; Waite, J. H.; Dougherty, M.; Bell, J.; Ulusen, D., J. Geophys. Res., 115 (A8), A08319, 2010.

22. Investigation of the force balance in the Titan ionosphere: Cassini T5 flyby model/data comparisons, Ulusen, D.; Luhmann, J. G.; Ma, Y.-J.; Ledvina, S.; Cravens, T. E.; Mandt, K.; Waite, J. H.; Wahlund, J.-E., Icarus, 210 (2), 867-880, 2010.

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