Conference Proceedings

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  1. "Radiation belt data assimilation with an ensemble Kalman filter"
    J. Koller, R. H. Friedel, G. D. Reeves, Y. Chen (2007)
    presented at: AMS 4th Space Weather Symposium, Austin, TX.

  2. "LANL Data Assimilation update"
    J. Koller and the DREAM team (2007)
    presented at the Next Generation Radiation Belt Specification Consortium, El Segundo, CA

  3. "Once upon a Time in the Electron Radiation Belts"
    R. H. W. Friedel, G. D. Reeves, J. Koller, Y. Chen, S. Zaharia, V. Jordanova (2007)
    presented at: Spring AGU 2007, Accapulco, Mexico

  4. "Data assimilation and ring-current coupled models for understanding the relativistic electron radiation belt dynamics - the Los Alamos DREAM project"
    R. H. Friedel, G. D. Reeves, J. Koller, Y. Chen, V. Jordanova, S. Zaharia (2006)
    presented at: Western Pacific Geophysics Meeting, Beijing, China

  5. "Modeling the Storm-Time Magnetosphere: Results from Coupling Ring Current and Radiation Belt Models using Data Assimilation"
    G. D. Reeves, R. H. W. Friedel, M. F. Thomsen, M.G. Henderson, V. K. Jordanova, Y. Chen, S. Zaharia, J. Koller, T. I. Pulkinnen (2006)
    in: Modeling the Storm-Time Magnetosphere: Results from Coupling Ring Current and Radiation Belt Models using Data Assimilation, International Symposium on Recent Observations and Simulations of the Sun-Earth System, Varna, Bulgaria

  6. "Comprehensive Loss and Acceleration Process Identification with Data Assimilation of LWS TR&T Storm on October 25, 2002"
    J. Koller, V. Jordanova, G. D. Reeves, R. H. Friedel, Y. Chen, T. E. Cayton, Y. Miyoshi (2006)
    presented at: AGU Fall Meeting 2006, #SM43B-06.

  7. "Radiation Belt Specification and Situational Awareness using Data Assimilation Based Modeling"
    G.D. Reeves, J. Koller, Y. Chen, R. H. Friedel, T. E. Cayton (2006)
    presented at: AGU Fall Meeting 2006, #SM42A-06.

  8. "Radiation Belt Diffusion Parameter Estimation With an Adaptive Kalman Filter"
    Koller, J.; Friedel, R. H. (2005) in: American Geophysical Union, Fall Meeting 2005, abstract #SM12B-06
    [read abstract | view slides]

  9. "Radiation Belt Data Assimilation and Parameter Estimation"
    J. Koller, R. Friedel (2005)
    presented at: CEDAR/GEM workshop, Santa Fe, NM

  10. "Adaptive Kalman Filter for Radiation Belt Data Assimilation"
    J. Koller, R. Friedel (2005)
    presented at: Workshop on Energetic Electron Radiation Belt Dynamics, Hermanus, South Africa

  11. "Space Weather, Energetic Particle Storms, and Radiation Belt Modeling"
    J. Koller, R. Friedel (2005)
    presented at: SAMSI workshop on Data Assimilation for Geophysical Systems, Research Triangle, NC

  12. "Mid Infrared Spectro-Photometric Monitoring of V4334 Sagittarii (aka Sakurai's Object)"
    Käufl, Hans Ulrich; Kerber, Florian; Koller, Josef (2005)
    in: High Resolution Infrared Spectroscopy in Astronomy: Proceedings of an ESO Workshop Held at Garching, Germany, 18-21 November 2003, ESO Astrophysics Symposia. ISBN 3-540-25256-8. Edited by H.U. Käufl, R. Siebenmorgen, and A.F.M. Moorwood. Springer-Verlag Berlin/Heidelberg, pp. 409-410
    [read abstract | DOI 10.1007/10995082_63]

  13. "Data assimilation based modeling for natural and HANE-produced radiation belt"
    G. D. Reeves, R. H. Friedel, Y. Chen, M. Thomsen, S. Zaharia, J. Koller, B. Albright, D. Winske, V. Jordanova (2005)
    Space Control Conference 2005, Lexington, MA.

  14. "Radiation Belt Modeling and Data Assimilation with Salammbo"
    Koller, J.; Friedel, R. H.; Bourdarie, S. (2004)
    in: American Geophysical Union, Fall Meeting 2004, abstract #SM41A-1101
    [read abstract]

  15. "Relativistic electron loss measurements from the LANL GPS energetic particle instruments"
    Friedel, R. H.; Koller, J.; Cayton, T. E.; Green, J. C.; O'Brien, T. P.; Onsager, T. G. (2004)
    in: American Geophysical Union, Fall Meeting 2004, abstract #SM34A-07
    [read abstract]

  16. "Vorticity Generation in Protoplanetary Disks"
    Koller, J; Li, Hui (2004)
    in: The Search for Other Worlds: Fourteenth Astrophysics Conference, AIP Conference Proceedings, 713, pp. 63-66
    [read abstract | DOI 10.1063/1.1774501]

  17. "Effect of the Smoothing Factor in the Potential of a Protoplanet"
    J. Koller, H. Li (2003)
    in: Scientific Frontiers of Extrasolar Planets, Washington, ASP Conf. Ser., 294, p. 339-342.
    [download abstract]

  18. "Planets in Disks with Vortices and Consequences on the Migration Rate"
    J. Koller, H. Li, D.N.C. Lin (2003)
    in: DPS 2003, Monterey, 35, #3503.
    [view poster | download abstract]

  19. "Wave Excitation in Accretion Disk by Protoplanets"
    J. Koller, H. Li (2002)
    in: 200th AAS, Albuquerque, 34, #7107.
    [view poster | download abstract]

  20. "Implications of Dust for the Radiation Spectrum of Shell-Type PN Models"
    S. Kimeswenger, J. Koller (2002)
    in: Rev. Mex. AA. Conf. Ser., Mexico City, 12, #164.
    [download pdf]

  21. "Dust Particles on a Photon Diet in V605 Aql"
    J. Koller, S. Kimeswenger (2002)
    in: Rev. Mex. AA. Conf. Ser., Mexico City, 12, p. 165-166.
    [download pdf]

  22. "Dust in PNe - Influence of Dust on the Radiation Field in Shell Modeling"
    S. Kimeswenger, J. Koller (2000)
    in: Ionized Gaseous Nebulae, Mexico City, p. 31.
    [read abstract ]

  23. "The Infrared Emission of Dust in the Born-Again Planetary Nebula Abell 58"
    J. Koller, S. Kimeswenger (2000)
    in: Thermal Emission Spectroscopy and Analysis of Dust, Disks, and Regoliths. Houston, ASP Conf. Ser., 196, p. 23-29.
    [download pdf | view poster]

  24. "Temperature Fluctuations of Small Dust Particles in Planetary Nebulae"
    J. Koller (1999)
    in: Optical and Infrared Spectroscopy of Circumstellar Matter, Tautenburg, ASP Conf. Ser.,188 p. 271-273.
    [download pdf | view poster]

  25. "Dust Emission - Equilibrium or Temperature Fluctuation"
    S. Kimeswenger, J. Koller (1999)
    in: Astron. Ges. Abstr. Ser., Goettingen, 15, p. 113.
    [view poster | read abstract]

  26. "Dust Emission - Equilibrium or Temperature Fluctuation"
    S. Kimeswenger, J. Koller (1999)
    in: Austrian Physical Society Tagungsband - Ergänzungen, Innsbruck, P125.

  27. " First ISO Results on the Born-Again Object A78"
    R.D. Geckeler, S. Kimeswenger, J. Koller (1999)
    in: 2nd Austrian ISO Workshop: Atmospheres of M, S and C Giants, Vienna, p. 105.
    [read abstract]

  28. "Modeling the Infrared Emission of Dust in Born-Again Planetary Nebulae"
    J. Koller, S. Kimeswenger (1999)
    in: Workshop on Thermal Emission Spectroscopy and Analysis of Dust, Disks, and Regoliths, LPI Contribution No. 969, Lunar and Planetary Institute, Houston, p. 15-16.
    [download pdf]

  29. "GHOST - Galactic Halo Object Space Telescope"
    B. Armsdorfer, D. Bastieri, O.S. Brozek, T. Diedrich, C. del Noce, I. Domsa, E. Fiandrini, A. Golden, J. Grabenhofer, T. Hollaus, O. Jennrich, W. Kausch, J. Koller, C. Mehls, S. Nietzsche, V. Quetschke, N. Riahi, R. Rieth, F. Schein, W. Schöne, R. Trautner, A. Tanzer, S. Träger, E. Willemenot (1997)
    in: ESA Special Publications, Alpbach, SP-420, p.55-86.
    [download pdf]

  30. "Comet Hale-Bopp over Innsbruck"
    F. Kerber (Head), B. Armsdorfer, A. Bacher, W. Benger, S. Bruckner, E. Eisendle, E. Furlan, M. Gajdosik, H. Gratl, H. Gröbner, G. Grömer, H. Hartl, A. Jarosch, W. Kapferer, W. Kausch, S. Kimeswenger, J. Koller, G. Nordmeyer, H. Limmert, W. Saurer. S, Schmeja, N. Span, B. Stampfer, R.Weinberger, C. Wiedemair (1997)
    in: Astron. Ges. Abstr. Ser., Innsbruck, 13, p. 171.
    [view poster | read abstract]

  31. "Science Observations of Comet Hale-Bopp over Innsbruck"
    B. Armsdorfer, W. Benger, E. Furlan, W. Kapferer. W. Kausch, F. Kerber, S. Kimeswenger, J. Koller, G. Nordmeyer, S. Schmeja (1997)
    in: Astron. Ges. Abstr. Ser., Innsbruck, 13, p. 172.
    [view poster | read abstract]